chemical reaction Crossword Puzzles

Physical and Chemical Changes 2018-05-30

Physical and Chemical Changes crossword puzzle
Across
  1. When heated at 100 C it can cause vapour
  2. Made of sub-atomic particles
  3. Something that is prone to become a gas
  4. A gaseous form a liquid which has evaporated due to being in room temperature
  5. When metal begins rust
  6. A type of catalyst that helps create chemical reactions
  7. Substances that are bond together by different atoms
  8. When heated at a certain temperature, a solid could turn into a liquid
  9. A substance that can make things go faster by increasing the rate of a chemical reaction
  10. A substance that only consists of one type of atom
  11. The beginning of a chemical reaction which is seen on the left side
  12. A combination of two atoms that form together
  13. The horizontal row of the periodic table
  14. A molecule that consists of only two atoms
  15. A vapor or gas that has a stench
Down
  1. A huge chain that consists of molecule substances
  2. An arrangement of particles that turns it into a regular pattern
  3. Just one atom
  4. When two atoms that are the same element are bond together
  5. The amount of pressure put into a particle
  6. When gas changes into liquid due to the temperature change
  7. When a solid turns into a gas or a gas turns into a solid
  8. When two different atoms bond together
  9. When a liquid undergoes chemical change that makes it gas
  10. You can speed this up by adding heat energy
  11. When two atoms are attracted towards each other by force
  12. A classification system that classifies atoms by atomic mass
  13. When substances react to energy and start colliding forming a more kinetic energy
  14. When something is classified to its own section
  15. The after-mat of a reactant which is seen on the right side

30 Clues: Just one atom • When metal begins rust • Made of sub-atomic particles • A vapor or gas that has a stench • When two different atoms bond together • Something that is prone to become a gas • When heated at 100 C it can cause vapour • The horizontal row of the periodic table • The amount of pressure put into a particle • A molecule that consists of only two atoms • ...

Biology Vocabulary crossword Labs 2019-01-03

Biology Vocabulary crossword Labs crossword puzzle
Across
  1. chemical reaction that requires a net input of energy. Absorption
  2. an inherited trait that gives an advantage to individual organisms and is passed on to future generations
  3. all of an organism genetic material.
  4. Does not make ATP but it allows glycosis to continue
  5. collection of all of an organisms physical characteristics.
  6. the study and manipulation of DNA on a molecular level
  7. Produces molecules that carry energy to the second part of cellular respiration
  8. characteristics of having two different alleles that appear at the same locus of sister chromatids.
  9. any of the alternative forms of a gene that occurs at a specific plane on a chromosome.
Down
  1. During all phases (except cell division), DNA not coiled into chromosomes, exists as a grainy material
  2. the amount of energy that needs to be absorbed for a chemical reaction to take place
  3. the variety of life across the biosphere
  4. allele that is expressed when two different alleles are present in an organisms genotype.
  5. chemical reaction that yields a net release of energy in the form of heat.
  6. sister chromatids separate and centromeres divide, pulled apart by shortening spindle fibers
  7. C3, H6, O3, is what causes your muscles to "burn" during hard exercise
  8. The powerhouse of the cell. Creates ATP by using chemical energy and oxygen.
  9. spindle fibers attach to centromere of each pair of sister chromatids and line up in the middle of the cell
  10. Found on the nuclear envelope and allows for the transfer of material in a out of the nucleus
  11. Many short hairlike structures that extend from the surface and allow movement

20 Clues: all of an organism genetic material. • the variety of life across the biosphere • Does not make ATP but it allows glycosis to continue • the study and manipulation of DNA on a molecular level • collection of all of an organisms physical characteristics. • chemical reaction that requires a net input of energy. Absorption • ...

Chemistry Crossword 2023-04-25

Chemistry Crossword crossword puzzle
Across
  1. change in heat of the products from the reactantsCatalyst- a substance speeds up a chemical reaction without itself undergoing any chemical change.
  2. equation shows only those reactants and products that are the new materials formed from the chemical reaction
  3. atoms will gain, lose, or share valence e- to attain a 8 valence electrons
  4. diffusion through a tiny opening
  5. sharing of electrons by atoms so that all atoms involved achieve a filled valence level.
  6. microscopic particles are dispersed evenly in another substance
  7. the total amount of energy; movement
  8. the amount of heat/energy to 1 gram of a substance by 1 degrees C.
  9. biological catalysts that speed up the rate of reactions in the body
  10. the temperature at which the EVP is equal to standard atmospheric pressure
Down
  1. transition of a substance directly from solid to gas
  2. the point on a phase diagram in which two phases of a substance become indistinguishable from each other, a supercritical fluid. Supercritical fluids have the characteristics of both liquids and gases.
  3. a description of an element's tendency to undergo chemical reactions.
  4. a measure of how strongly atoms attract bonding e- to themselves. The higher the number, the greater the attraction for e-.
  5. a mixture containing particles that settle out if left undisturbed
  6. a reaction that produces heat
  7. transfer of electrons between atoms, resulting in cations and anions
  8. the random movement of gas molecules from an area of higher concentration to an area of lower concentration
  9. the temperature and pressure at which the solid, liquid, and gas forms of a substance coexist.
  10. transition of a substance directly from gas to solid

20 Clues: a reaction that produces heat • diffusion through a tiny opening • the total amount of energy; movement • transition of a substance directly from solid to gas • transition of a substance directly from gas to solid • microscopic particles are dispersed evenly in another substance • a mixture containing particles that settle out if left undisturbed • ...

Chemical Reactions & Matter Vocabulary 2023-12-11

Chemical Reactions & Matter Vocabulary crossword puzzle
Across
  1. when a solid breaks apart into particles too small to see and mixes completely in the liquid
  2. how well a material mixes
  3. describes a material that does dissolve in a particular substance
  4. A system in which matter can enter from or escape to the surroundings
  5. A process that produces one or more new substances by breaking apart molecules into atoms and and/or jointing atoms together tin different combinations
  6. describes a material that does not dissolve in something else
  7. A number used to balanced a chemical equation the shows the number of molecules
  8. The principal that states matter is not created or destroyed during a chemical reaction and the mass the reactants and products are equal
  9. A characteristic of something that does not change
  10. simplest particle of matter, makes up molecules
  11. a change in matter that produces a new substance
Down
  1. how much matter there is in a certain space
  2. When a substance changes between being a solid, liquid, or gas
  3. A blend of two or more substances
  4. a substances ability to interact with fire
  5. Symbols that shows the ratio of atoms in a molecule
  6. a type of matter that is composed of one type of particle and is made only of itself
  7. A substance or molecule produced in a chemical reaction
  8. A system in which no matter is allowed to enter or leave
  9. two or more atoms chemically bonded together
  10. a change in matter that changes the appearance or form of the substance but the its composition (no new substance)
  11. A substance molecule that is present at the start of a chemical reaction

22 Clues: how well a material mixes • A blend of two or more substances • a substances ability to interact with fire • how much matter there is in a certain space • two or more atoms chemically bonded together • simplest particle of matter, makes up molecules • a change in matter that produces a new substance • A characteristic of something that does not change • ...

Year 7 Revision - Reactions 2021-05-25

Year 7 Revision - Reactions crossword puzzle
Across
  1. A _____________change is reversible and no new substances are made.
  2. A substance that makes your skin itch or swell up a little. Hazard symbol shows a cross.
  3. If an acid has a large number of solute particles per unit volume then it is a c___________________ acid.
  4. Chemical changes cannot be undone. We say that they are i________________
  5. Substance made when an acid and alkali react. Examples are sodium chloride and copper sulfate.
  6. A soluble base.
  7. A substance that is made in a chemical reaction.
  8. A starting substance in a chemical reaction.
Down
  1. A positive test for this gas is a squeaky pop when tested with a lit splint.
  2. A table of all the elements, in which elements with similar properties are grouped together.
  3. Acids can eat through materials. We say they are ___________________
  4. A substance that neutralises an acid – those that dissolve in water are called alkalis.
  5. Substances used to identify whether a substance is acidic, alkaline or neutral.
  6. A solution with a pH value less than 7.
  7. Brushing your teeth is an example of a __________________ reaction.

15 Clues: A soluble base. • A solution with a pH value less than 7. • A starting substance in a chemical reaction. • A substance that is made in a chemical reaction. • Brushing your teeth is an example of a __________________ reaction. • A _____________change is reversible and no new substances are made. • Acids can eat through materials. We say they are ___________________ • ...

Chapter 10 Terms 2014-03-25

Chapter 10 Terms crossword puzzle
Across
  1. a single compound breaks down into 2 or more simpler compounds, usually with heat applied
  2. What does (aq) stand for?
  3. a hydrocarbon or carbohydrate [CxHy] is burned in the presence of oxygen to yield CO2 and H2O
  4. What does NR stand for?
  5. substances that exist before a chemical reaction. Written on the left of the arrow.
  6. two substances switch partners.
  7. speeds up reaction without itself being changed
  8. equation with spectator ions removed
Down
  1. a number preceding atoms, ions or molecules in a balanced chemical equation showing relative number of each
  2. an equation describing a chemical change using the names of the reactants and products
  3. an acid and a base react to form a salt and water [HX + BOH --> BX + H2O]
  4. 2 elements or 2 simple compounds become a more complex single compound
  5. equation showing soluble salts written as individual ions
  6. substances that come into existence as a result of a reaction. Written on the right of the arrow
  7. one element displaces another in a compound. The displaced element must be lower in the Activity Series. [A + BC --> B + AC]

15 Clues: What does NR stand for? • What does (aq) stand for? • two substances switch partners. • equation with spectator ions removed • speeds up reaction without itself being changed • equation showing soluble salts written as individual ions • 2 elements or 2 simple compounds become a more complex single compound • ...

Photosynthesis Honors 2022-04-07

Photosynthesis Honors crossword puzzle
Across
  1. a reactant of photosynthesis
  2. the fluid in the choloroplast
  3. reaction in photosynthesis requiring sunlight
  4. what is released from the light reaction
  5. the energy used by cells
  6. the ability to do work
  7. all the chemical reactions that take place in the cell
  8. the color reflected in plants
  9. where water is stored in a plant cell
  10. energy is released by breaking large molecules into small molecules
  11. a series of reactions where the product of one reaction is the reactant for the next
  12. the main pigment in photosynthesis
Down
  1. where photosynthesis takes place
  2. light capturing molecules
  3. the process in the cell that creates glucose
  4. energy is used to build large molecules from small ones
  5. the study of how energy flows and changes in the universe
  6. a stack of thylakoids
  7. a product of photosynthesis
  8. location of the light dependent reaction
  9. a reactant of photosynthesis

21 Clues: a stack of thylakoids • the ability to do work • the energy used by cells • light capturing molecules • a product of photosynthesis • a reactant of photosynthesis • a reactant of photosynthesis • the fluid in the choloroplast • the color reflected in plants • where photosynthesis takes place • the main pigment in photosynthesis • where water is stored in a plant cell • ...

chemistry 2021-12-19

chemistry crossword puzzle
Across
  1. relative amounts of each element in a compound
  2. Mass of compound divided by amount of substance (measured in moles)
  3. what is formed by reactants
  4. A substance entered in a chemical reaction that gets altered
  5. Unit of measurement for large numbers of small entities
  6. number ratio of atoms present in a compound, simplified the most
  7. a reaction when exchange of ions occurs between 2 compounds
  8. shows how many atoms or molecules of a substance are in the reaction
  9. a set of 2 or more atoms bonded together
  10. a reaction when a single compound is broken down into 2 or more products
Down
  1. 2 atoms bonded together that contain single atoms (most compounds)
  2. a reaction usually consisting of an ionic compound and an element
  3. shows if an atom has gained or lost electrons
  4. makeup of a molecule
  5. something consisting of 2 or more elements
  6. a reaction when 2 or more reactants combine to form one substance
  7. a compound containing 3 different elements
  8. the rule that says mass can't be created or destroyed
  9. tells you the number of atoms found in that element

19 Clues: makeup of a molecule • what is formed by reactants • a set of 2 or more atoms bonded together • something consisting of 2 or more elements • a compound containing 3 different elements • shows if an atom has gained or lost electrons • relative amounts of each element in a compound • tells you the number of atoms found in that element • ...

unit0-2 2024-12-18

unit0-2 crossword puzzle
Across
  1. a process by which one or more reactants are converted into one or more products.
  2. a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
  3. end substances after a biological process has occurred.
  4. a substance whose atoms all have the same number of protons
  5. A control group is the group in a study that does not include the thing being tested and is used as a benchmark to measure the results of the other group and is one of the two groups in any valid experiment. The experimental group is the other one and is the group in which you are testing something.
  6. molecules that have a dipole or an uneven distribution of charge across their geometry resulting in one side being positive and the other side negative.
  7. a thing or event that evokes a specific functional reaction in an organ or tissue.
  8. A form of a chemical element in which the atoms have the same number of protons (part of the nucleus of an atom) but with a different number of neutrons
  9. an enzyme the body uses to break down fats in food so they can be absorbed in the intestines.
  10. an enzyme that is responsible for oxidizing ethanol and converting it into nicotinamide adenine dinucleotide (NADH).
  11. the basic unit of a chemical element.
  12. a class of things of the same kind and with the same name
  13. the systematic study of the structure and behavior of the physical and natural world through observation, experimentation, and the testing of theories against the evidence obtained.
  14. attraction and repulsions between atoms, molecules, as well as other intermolecular forces.
  15. the electromagnetic attraction created between a partially positively charged hydrogen atom attached to a highly electronegative atom and another nearby electronegative atom.
  16. the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
  17. able to dissolve other substances.
  18. a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
  19. the structure in a cell that contains the chromosomes.
  20. The independent variable is the variable that is manipulated during an experiment, and it gets its name because it is independent of other factors.
  21. a homogeneous mixture of one or more solutes dissolved in a solvent.
  22. the hierarchy of complex biological systems and structures.
Down
  1. The minimum energy required for a reaction to occur.
  2. an enzyme that catalyses the hydrolysis of starch (Latin amylum) into sugars.
  3. an atom or group of atoms that has an electric charge.
  4. a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline. The pH is equal to −log10 c, where c is the hydrogen ion concentration in moles per liter.
  5. A material made up of two or more parts or elements.
  6. a group of two or more atoms that are held together by attractive forces known as chemical bonds
  7. evaluation of scientific, academic, or professional work by others working in the same field.
  8. an uncharged atomic particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus.
  9. a reaction to something.
  10. The substances which participate in a chemical reaction
  11. the region of an enzyme where substrate molecules bind and undergo a chemical reaction.
  12. a chemical bond wherein there is a transfer of an electron from one atom to another.
  13. an individual animal, plant, or single-celled life form.
  14. the process of developing or being developed.
  15. an experimental element which is constant (controlled) and unchanged throughout the course of the investigation.
  16. a subatomic particle with a positive electrical charge.
  17. Quantitative data is numbers-based, countable, or measurable. Qualitative data is interpretation-based, descriptive, and relating to language.
  18. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
  19. the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
  20. the action or process of adapting or being adapted.
  21. a chemical bond that involves the sharing of electrons to form electron pairs between atoms.
  22. the surface on which an organism lives.
  23. A substance that is dissolved in a solution
  24. a substance that speeds up a chemical reaction, or lowers the temperature or pressure needed to start one, without itself being consumed during the reaction.
  25. the production of offspring by a sexual or asexual process.
  26. an enzyme, often derived from microbes, that catalyzes the breakdown of proteins into smaller peptides or amino acids.
  27. the process of increasing in physical size.

49 Clues: a reaction to something. • able to dissolve other substances. • the basic unit of a chemical element. • the surface on which an organism lives. • A substance that is dissolved in a solution • the process of increasing in physical size. • the process of developing or being developed. • the action or process of adapting or being adapted. • ...

science 2023-10-13

science crossword puzzle
Across
  1. - a change in a state of matter of a substance
  2. - the aftermath of two substances chemically mixing into each other
  3. molecules or the substances that is a part of the chemical reaction; the substances to start a chemical reaction
  4. - using a formula or a letter, coefficient and numbers to explain chemical reactions
Down
  1. - when two substances go through a chemical reaction and mass is saved
  2. - solid(s) formed after a chemical reaction or temperature
  3. - a reaction between two substances when mixed together

7 Clues: - a change in a state of matter of a substance • - a reaction between two substances when mixed together • - solid(s) formed after a chemical reaction or temperature • - the aftermath of two substances chemically mixing into each other • - when two substances go through a chemical reaction and mass is saved • ...

Properties of Matter 2026-02-25

Properties of Matter crossword puzzle
Across
  1. A pure substance made of two or more elements chemically bonded in a fixed ratio.
  2. of Matter The physical form of matter: solid, liquid, or gas.
  3. The ability of a substance to allow heat or electrical current to flow through it; measured in units of siemens (for electrical) or watts per meter-kelvin (for thermal).
  4. The ability of a substance to dissolve in a solvent, usually measured in grams per 100 mL of solvent.
  5. The ability of a substance to be hammered, rolled, or pressed into thin sheets without breaking or cracking.
  6. The way a substance reflects light from its surface; described as shiny, dull, metallic, or glassy.
  7. A chemical reaction in which a substance loses electrons or combines with oxygen.
  8. A number placed in front of a chemical formula to indicate how many molecules or atoms are involved in a reaction.
  9. A state of matter with a definite shape and definite volume; particles are tightly packed.
  10. The temperature at which a solid changes into a liquid.
  11. The ability of a substance to be stretched or drawn into thin wires without breaking.
  12. The tendency of a substance to undergo chemical reactions; some elements are more reactive than others.
  13. Anything that has mass and takes up space (volume).
  14. The amount of matter in an object; measured in grams or kilograms.
  15. The smallest unit of an element that retains the properties of that element; composed of protons, neutrons, and electrons.
  16. The temperature at which a liquid changes into a gas.
  17. A property of a material that breaks, shatters, or cracks easily when struck or bent without significant deformation.
  18. A combination of two or more substances that are not chemically bonded; can be separated by physical means.
Down
  1. A substance that participates in a chemical reaction and is consumed to form products.
  2. A pure substance made of only one type of atom; cannot be broken down into simpler substances by chemical means.
  3. The property of a substance to emit light after absorbing radiation (such as ultraviolet light); the light stops when the radiation stops.
  4. The smallest unit of a compound or element that can exist independently and still retain the properties of the substance.
  5. The property of a substance to be attracted to or repelled by a magnet; the ability to produce a magnetic field.
  6. A new substance formed as a result of a chemical reaction.
  7. The amount of space an object occupies; measured in liters, milliliters, or cubic units.
  8. The ability of a substance to burn in the presence of oxygen.
  9. A process in which substances (reactants) are transformed into new substances (products) with different properties.
  10. The feel or appearance of a surface (smooth, rough, etc.).
  11. The visual appearance of a substance based on how it reflects light.
  12. A state of matter with a definite volume but no definite shape; particles are loosely packed and can move.
  13. The degree to which a substance is poisonous or harmful to living organisms.
  14. Property A characteristic that describes how a substance reacts or changes when it combines with other substances.
  15. A state of matter with no definite shape or volume; particles move freely and rapidly.
  16. The mass per unit volume of a substance; calculated as
  17. A symbolic representation of a chemical reaction showing reactants, products, and their relative quantities.

35 Clues: Anything that has mass and takes up space (volume). • The temperature at which a liquid changes into a gas. • The mass per unit volume of a substance; calculated as • The temperature at which a solid changes into a liquid. • A new substance formed as a result of a chemical reaction. • The feel or appearance of a surface (smooth, rough, etc.). • ...

Making Observations 2024-03-20

Making Observations crossword puzzle
Across
  1. what we would hear if a gas is made during a chemical reaction
  2. if energy is released during a chemical reaction, the temperature would __________
  3. what we would see if a gas is made during a chemical reaction
Down
  1. the gas made when baking soda reacts with vinegar (we also breath it out!)
  2. bubbling and fizzing indicate that a ______ is being produced
  3. if something new is made during a chemical reaction, we might observe a ___________ change
  4. bubbling, fizzing and colour change are all signs of a __________ reaction

7 Clues: bubbling and fizzing indicate that a ______ is being produced • what we would see if a gas is made during a chemical reaction • what we would hear if a gas is made during a chemical reaction • the gas made when baking soda reacts with vinegar (we also breath it out!) • bubbling, fizzing and colour change are all signs of a __________ reaction • ...

Chemistry Crossword 2015-11-19

Chemistry Crossword crossword puzzle
Across
  1. - Primary constituents of matter
  2. - Medieval forerunner of chemistry
  3. - Cloudy mixture; not easily separated
  4. - Stretch into a long wire
  5. - Organic catalyst
  6. - Cloudy Mixture; easily separated
  7. - Subatomic particle with a positive charge
  8. - Reactive; Non-metallic
  9. - Basic unit of a chemical element
  10. - Subatomic particle without a charge
  11. - Helps a reaction proceed faster
  12. - Reaction accompanied by the absorption of heat
  13. - Has mass and occupies space
  14. - Consisting of many atoms
Down
  1. - Intermediate properties between Metals and solid Non-metals
  2. - Oxygen reacts with a substance to form a new substance
  3. - Vertical Column
  4. - Composed of two or more elements
  5. - Directly from solid to gas
  6. - Undergoes change during a reaction
  7. - Horizontal row
  8. - Can be Pounded or rolled into sheets
  9. - Reaction accompanied by the release of heat
  10. - Subatomic particle with a negative charge
  11. - A minute portion of matter

25 Clues: - Horizontal row • - Vertical Column • - Organic catalyst • - Reactive; Non-metallic • - Stretch into a long wire • - Consisting of many atoms • - Directly from solid to gas • - A minute portion of matter • - Has mass and occupies space • - Primary constituents of matter • - Helps a reaction proceed faster • - Medieval forerunner of chemistry • - Composed of two or more elements • ...

Photosynthesis Honors 2022-04-07

Photosynthesis Honors crossword puzzle
Across
  1. a reactant of photosynthesis
  2. the fluid in the choloroplast
  3. reaction in photosynthesis requiring sunlight
  4. what is released from the light reaction
  5. the energy used by cells
  6. the ability to do work
  7. all the chemical reactions that take place in the cell
  8. the color reflected in plants
  9. where water is stored in a plant cell
  10. energy is released by breaking large molecules into small molecules
  11. a series of reactions where the product of one reaction is the reactant for the next
  12. the main pigment in photosynthesis
Down
  1. where photosynthesis takes place
  2. light capturing molecules
  3. the process in the cell that creates glucose
  4. energy is used to build large molecules from small ones
  5. the study of how energy flows and changes in the universe
  6. a stack of thylakoids
  7. a product of photosynthesis
  8. location of the light dependent reaction
  9. a reactant of photosynthesis

21 Clues: a stack of thylakoids • the ability to do work • the energy used by cells • light capturing molecules • a product of photosynthesis • a reactant of photosynthesis • a reactant of photosynthesis • the fluid in the choloroplast • the color reflected in plants • where photosynthesis takes place • the main pigment in photosynthesis • where water is stored in a plant cell • ...

Topic 6 Rates and extent of Chemical Change AQA Chemistry 2021-07-21

Topic 6 Rates and extent of Chemical Change AQA Chemistry crossword puzzle
Across
  1. the variable you keep the same
  2. change in y/change in x
  3. no matter is gained or lost in this system
  4. produced when sodium thiosulfate reacts with hydrochloric acid
  5. produced when a metal reacts with an acid
  6. used to measure the gas produced by a reaction
  7. the variable you change
  8. produced when marble chips react with an acid
  9. mass of solid in a volume of solvent
  10. A reaction where energy is absorbed
  11. a biological catalyst
Down
  1. quantity of reactant used/time taken
  2. speeds up the rate without being used up
  3. A reaction where energy is released
  4. the variable you measure
  5. the minimum amount of energy particles must have to react
  6. this type of reaction can make the reactants from the product
  7. Starting materials
  8. The piece of equipment used to measure time
  9. Chemical reactions can occur only when particles do this

20 Clues: Starting materials • a biological catalyst • change in y/change in x • the variable you change • the variable you measure • the variable you keep the same • A reaction where energy is released • A reaction where energy is absorbed • quantity of reactant used/time taken • mass of solid in a volume of solvent • speeds up the rate without being used up • ...

Rates 2020-05-25

Rates crossword puzzle
Across
  1. In an …………… reaction, the reactants have less enthalpy than the products.
  2. A factor that affects the rate of all reactions.
  3. (8,7) A graph showing the enthalpies of reactants and products over the course of a reaction.
  4. Factor affecting rate of reaction when gases are involved.
  5. A factor that affects the rate of reaction in a solution.
  6. The more of these happen, the greater the rate of a reaction.
  7. A soluble catalyst that catalyses a reaction in a solution.
Down
  1. In a concentration vs. time graph, the ………. represents the rate of reaction.
  2. when the pressure increases in a reacting gas mixture, the rate of reaction ………….
  3. When the 8 across increases, the rate of reaction increases mainly because the number of ………. collisions per second increases.
  4. He invented a distribution curve to analyse factors affecting the rate of reaction.
  5. ………………energy the minimum energy that particles must have in order to react.
  6. The activation energy ……….. has to be reached for a chemical reaction to happen.
  7. A catalyst of life.

14 Clues: A catalyst of life. • A factor that affects the rate of all reactions. • A factor that affects the rate of reaction in a solution. • Factor affecting rate of reaction when gases are involved. • A soluble catalyst that catalyses a reaction in a solution. • The more of these happen, the greater the rate of a reaction. • ...

Chapter 2 Crossword (1) 2014-11-18

Chapter 2 Crossword (1) crossword puzzle
Across
  1. has a positive charge
  2. having a pH greater than 7.
  3. the abundance of a constituent divided by the total volume of a mixture
  4. Elements being chemically put together.
  5. the ion H3O+, consisting of a protonated water molecule and present in all aqueous acids.
  6. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  7. A chemical reaction in which energy is released
  8. a substance that undergoes a change during a process.
  9. level the fixed amount of energy
  10. a liquid in which a solute is dissolved to form a solution.
  11. having a pH greater than 7.
Down
  1. A chemical bond formed between two ions with opposite charges.
  2. has a neutral charge
  3. the minor component in a solution
  4. Gain of oxygen that involves the transfer of electrons between species.
  5. A pure substance that is made up of atoms of two or more elements.
  6. a process in which electrons are added to an atom or ion
  7. The simplest particle of an element that retains all properties of that element
  8. A particle with negative charge that orbits the nucleus of an atom.
  9. Any object that takes up space and has mass
  10. a measure of how acidic or basic a substance is.

21 Clues: has a neutral charge • has a positive charge • having a pH greater than 7. • having a pH greater than 7. • level the fixed amount of energy • the minor component in a solution • Elements being chemically put together. • Any object that takes up space and has mass • A chemical reaction in which energy is released • a measure of how acidic or basic a substance is. • ...

Photosynthesis Vocabulary 2022-09-28

Photosynthesis Vocabulary crossword puzzle
Across
  1. the ability of a system to do work; required for changes to happen within a system
  2. a substance produced during a chemical reaction
  3. the movement of elements or molecules through a repeated sequence of events
  4. a chemical reaction during which plants convert radiant energy from the Sun to chemical energy; the reaction converts carbon dioxide and water into sugar (glucose) and oxygen
  5. microscopic plants that live in aquatic environments and perform photosynthesis
  6. an organism that is too small to be seen with the naked eye
Down
  1. a membrane-bound organelle in plants that is the site of photosynthesis
  2. the process by which one or more substances change to produce one or more different substances
  3. a sugar composed of six carbon atoms that is the preferred energy source for most cells; produced by photosynthesis
  4. a substance that takes part in and undergoes change during a chemical reaction

10 Clues: a substance produced during a chemical reaction • an organism that is too small to be seen with the naked eye • a membrane-bound organelle in plants that is the site of photosynthesis • the movement of elements or molecules through a repeated sequence of events • a substance that takes part in and undergoes change during a chemical reaction • ...

Kelp Forest Vocabulary 2023-11-03

Kelp Forest Vocabulary crossword puzzle
Across
  1. the smallest unit of an element
  2. a simple sugar that is an important energy source in living organisms and is a component of many carbohydrates
  3. a microorganism living in water that consists of a single cell that produces its own food through photosynthesis
  4. a multicellular organism that lives in water and produces its own food through photosynthesis
  5. a pure substance that cannot be broken down into simpler substances by chemical reactions
  6. substances formed as a result of a chemical reaction
  7. a chemical change
  8. the process of changing or causing something to change from one form to another
Down
  1. a dramatic change in form or appearance
  2. a substance that provides nourishment for growth and maintenance of life
  3. an organism that you can only see with a magnifying glass
  4. the chemical process in plants that use water, sunlight, and carbon dioxide to produce oxygen and sugar
  5. two or more atoms joined together
  6. substances that are consumed to create a chemical reaction

14 Clues: a chemical change • the smallest unit of an element • two or more atoms joined together • a dramatic change in form or appearance • substances formed as a result of a chemical reaction • an organism that you can only see with a magnifying glass • substances that are consumed to create a chemical reaction • ...

Rates of Reactions 2024-06-14

Rates of Reactions crossword puzzle
Across
  1. for a reaction to happen the particles must _______
  2. chemical on the left of the arrow in a reaction equation
  3. a measure of the number of particles in a given volume
  4. increasing this favours the side of the reaction with the least gas molecules
  5. the container needed for a reaction to reach equilibrium
  6. sodium _________ reacts with acid to produce a cloudy precipitate
  7. name of the energy needed for a reaction to occur
Down
  1. a reaction which can go either forward or backward
  2. the term to describe enzymes which no longer work due to excess heat
  3. a reaction which releases energy to its surroundings
  4. added to a reaction to speed it up, but is not used up
  5. the opposite of an exothermic reaction
  6. straight line to a curve to calculate the rate of reaction

13 Clues: the opposite of an exothermic reaction • name of the energy needed for a reaction to occur • a reaction which can go either forward or backward • for a reaction to happen the particles must _______ • a reaction which releases energy to its surroundings • a measure of the number of particles in a given volume • added to a reaction to speed it up, but is not used up • ...

Cha 2014-11-18

Cha crossword puzzle
Across
  1. A particle with negative charge that orbits the nucleus of an atom.
  2. A chemical reaction in which energy is released
  3. the ion H3O+, consisting of a protonated water molecule and present in all aqueous acids.
  4. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  5. level the fixed amount of energy
  6. the ability to do work
  7. A chemical bond formed between two ions with opposite charges.
  8. a measure of how acidic or basic a substance is.
  9. a liquid in which a solute is dissolved to form a solution.
  10. having a pH greater than 7.
Down
  1. the minor component in a solution
  2. The simplest particle of an element that retains all properties of that element
  3. Gain of oxygen that involves the transfer of electrons between species.
  4. a process in which electrons are added to an atom or ion
  5. the abundance of a constituent divided by the total volume of a mixture
  6. a substance that undergoes a change during a process.
  7. has a neutral charge
  8. has a positive charge
  9. A pure substance that is made up of atoms of two or more elements.
  10. Elements being chemically put together.
  11. having a pH greater than 7.
  12. Any object that takes up space and has mass

22 Clues: has a neutral charge • has a positive charge • the ability to do work • having a pH greater than 7. • having a pH greater than 7. • level the fixed amount of energy • the minor component in a solution • Elements being chemically put together. • Any object that takes up space and has mass • A chemical reaction in which energy is released • ...

Cell Processes - ENERGY 2023-02-10

Cell Processes - ENERGY crossword puzzle
Across
  1. process using water, carbon dioxide, and light energy to make glucose and oxygen
  2. a pure substance that can't be broken down chemically
  3. type of fermentation where glucose is broken down into ethanol, carbon dioxide, and ATP energy
  4. biomolecule whose monomers are amino acids
  5. amount of ATP produced during fermentation
  6. type of fermentation where glucose is broken down into lactic acid and ATP energy
  7. type of respiration that occurs when no oxygen is present
  8. biomolecule whose monomers are nucleotides
  9. biomolecule whose monomers are monosaccharides
  10. CO2
  11. pigment in chloroplasts that absorb sunlight
  12. O2
  13. C6H12O6
Down
  1. unicellular fungus that aids in fermentation
  2. amount of ATP produced during cellular respiration
  3. two or more atoms joined together by a chemical bond
  4. starting materials in a chemical reaction
  5. two or more different atoms joined together by a chemical bond
  6. ending materials in a chemical reaction
  7. a form of energy made during aerobic and anaerobic respiration
  8. organelle where photosynthesis takes place
  9. energy from the sun that is needed for photosynthesis
  10. organelle where aerobic respiration takes place
  11. the smallest unit of matter
  12. biomolecule whose monomers are fatty acids and glycerol
  13. type of respiration that combines glucose and oxygen to make water, carbon dioxide, and ATP energy

26 Clues: O2 • CO2 • C6H12O6 • the smallest unit of matter • ending materials in a chemical reaction • starting materials in a chemical reaction • biomolecule whose monomers are amino acids • amount of ATP produced during fermentation • organelle where photosynthesis takes place • biomolecule whose monomers are nucleotides • unicellular fungus that aids in fermentation • ...

Chemistry Vocab 2021-09-27

Chemistry Vocab crossword puzzle
Across
  1. the basic unit of a chemical element
  2. a group of atoms bonded together
  3. increases the rate of a chemical reaction
  4. two or more simple parts in combination
  5. macronutrient found in certain foods
  6. the product of the random distribution
  7. sharing of electron pairs between atoms
  8. undergoes change during a reaction.
  9. the chemical species being observed
  10. a nitrogen-containing base
  11. substance that is refined for sale.
  12. a part or aspect of something abstract
  13. the minor component in a solution
  14. a molecule with net electric
Down
  1. macromolecules found in all cells
  2. attraction between oppositely charged ion
  3. a molecule of any of a class of compounds
  4. an abnormal union of membranous surfaces
  5. substance that is insoluble in water
  6. a liquid mixture
  7. the fact of forming a united whole
  8. made up of chemical amino acids
  9. organic compounds that contain amino
  10. used to specify the acidity of a solution
  11. negative electricity
  12. natural subs. composed of large molecules
  13. a substance that can form salt and water
  14. mixture of weak acid and its base
  15. a single rounded structure
  16. the liquid in which a solute is dissolved
  17. produced by a "fake" catalyst
  18. a molecule that can donate a proton

32 Clues: a liquid mixture • negative electricity • a nitrogen-containing base • a single rounded structure • a molecule with net electric • produced by a "fake" catalyst • made up of chemical amino acids • a group of atoms bonded together • macromolecules found in all cells • mixture of weak acid and its base • the minor component in a solution • the fact of forming a united whole • ...

Chemical Reactions Amplify 2024-02-26

Chemical Reactions Amplify crossword puzzle
Across
  1. something that is made of all the same atoms or group of atoms
  2. the relative size of things
  3. a starting substance that is part of a chemical reaction
  4. a group of atoms bonded together
  5. the smallest unit of an element
  6. a chart showing the arrangement of elements based on a repeating pattern of their chemical properties
  7. the area around the nucleus where electrons quickly orbit
  8. a subatomic particle in the nucleus that has a neutral charge
Down
  1. to change the order or position of something
  2. a change of matter from one form to another without a change in chemical properties
  3. a change that occurs when one or more substances change into an entirely new substance with different properties
  4. a positively charged subatomic particle in the nucleus of an atom
  5. the amount of space an object takes up
  6. a pure substance that cannot be separated or broken down into simper substances
  7. a negatively charged subatomic particle orbiting the nucleus
  8. a substance made of two or more elements
  9. an ending substance that is made during a chemical reaction
  10. anything that has mass and takes up space
  11. something that can be observed about a substance such as color, smell, or boiling point
  12. the ratio of the mass of a substance to its volume

20 Clues: the relative size of things • the smallest unit of an element • a group of atoms bonded together • the amount of space an object takes up • a substance made of two or more elements • anything that has mass and takes up space • to change the order or position of something • the ratio of the mass of a substance to its volume • ...

ThermoChemistry 2012-12-03

ThermoChemistry crossword puzzle
Across
  1. Amount of energy transferred between substances
  2. Energy available as a result of its moving molecules
  3. Energy can move in or out, but not matter
  4. a change in the protons or neutrons in an atom
  5. The energy change of the reaction of one mole of a substance at 100 kPa
  6. a graphical representation of the energy transferred during a physical or chemical change
  7. Everything around
  8. Used to measure energy changes in a chemical system
  9. Releasing thermal energy
  10. The study of energy transfer
  11. Difference in enthalpies of reactants and products during a change
  12. Reactants and products under study
  13. a change in the chemical bonds between atoms
  14. Neither matter nor energy can move in or out
  15. Both matter and energy can move in or out
Down
  1. Average kinetic energy of the particles in a sample of matter
  2. Raise the temperature mass of a substance1°C or 1K
  3. The value of the Enthalpy Change equals the sum of the enthalpy change for each of the individual steps
  4. A chemical equation where enthalpy change value is found using step equations
  5. A change in the form of a substance, in which no chemical bonds are broken
  6. Quantity of energy associated with the formation of one mole in their standard states
  7. The energy change associated with the reaction of one mole of a substance
  8. The study of energy involved in chemical reactions
  9. Absorbing thermal energy
  10. The enthalpy change associated with a change involving one mole of a substance

25 Clues: Everything around • Absorbing thermal energy • Releasing thermal energy • The study of energy transfer • Reactants and products under study • Energy can move in or out, but not matter • Both matter and energy can move in or out • a change in the chemical bonds between atoms • Neither matter nor energy can move in or out • a change in the protons or neutrons in an atom • ...

Chemistry review 2017-09-25

Chemistry review crossword puzzle
Across
  1. A measure of the average kinetic energy or the particles in a sample of matter
  2. A characteristic of matter that depends on the amount of matter
  3. The study of the transfer of energy as heat that accompanies chemical reactions and physical changes
  4. Anything that has mass and takes up space
  5. A substance made up of atoms of 2 or more different elements joined by chemical bonds that makes a new substance
  6. A characteristic of matter that does not depend on the amount of matter
  7. The energy transferred between samples of matter because of a difference in temperature
  8. Change in the identity or type of matter
  9. Absorbed/released energy, Bubbles, Color Change, Odor, Formation of a precipitate
  10. Composed of dissimilar components and is not uniform
  11. Change in the identity or type of matter stays the same,but the appearance changes
  12. A combination of 2 or more substances that are not chemically combined
Down
  1. A sample of matter either a single element or a single compound that has definite chemical and physical properties
  2. A chemical reaction that causes the absorption of heat
  3. Describes something that has a uniform structure or composition throughout
  4. A chemical reaction that causes the release of heat
  5. The amount of energy required to raise the temperature of one gram of a substance by 1 degree Celsius
  6. A substance that cannot be broken down into simpler substances by chemical means
  7. Can be observed or measured without changing the composition of matter
  8. Any characteristic that can be determined only by changing a substance type or identity

20 Clues: Change in the identity or type of matter • Anything that has mass and takes up space • A chemical reaction that causes the release of heat • Composed of dissimilar components and is not uniform • A chemical reaction that causes the absorption of heat • A characteristic of matter that depends on the amount of matter • ...

Photosynthesis Crossword 2022-10-11

Photosynthesis Crossword crossword puzzle
Across
  1. Where photosynthesis takes place.
  2. The chemical reaction which plants make their food.
Down
  1. A substance that takes part in and undergoes change during a reaction.
  2. The vascular tissue that conducts sugar downward from the leaves.
  3. A product of photosynthesis.
  4. Lets gases in and out of the leaf.
  5. Substances formed from a chemical reaction.
  6. A reactant of photosynthesis.
  7. Transports water from the roots of the plant to the leaves.
  8. An organelle that contains chlorophyll.

10 Clues: A product of photosynthesis. • A reactant of photosynthesis. • Where photosynthesis takes place. • Lets gases in and out of the leaf. • An organelle that contains chlorophyll. • Substances formed from a chemical reaction. • The chemical reaction which plants make their food. • Transports water from the roots of the plant to the leaves. • ...

Science Vocabulary 2023-10-13

Science Vocabulary crossword puzzle
Across
  1. representation of a chemical reaction using numbers and symbols
  2. two or more substances combine to create a new substance with different properties (new bonds also made)
  3. a new substance created with different properties
  4. no new substance created
Down
  1. a solid has been formed
  2. no mass is lost or formed
  3. beginning of a chemical reaction
  4. result of a chemical reaction

8 Clues: a solid has been formed • no new substance created • no mass is lost or formed • result of a chemical reaction • beginning of a chemical reaction • a new substance created with different properties • representation of a chemical reaction using numbers and symbols • two or more substances combine to create a new substance with different properties (new bonds also made)

3ºESO Physics and Chemistry 2023-04-03

3ºESO Physics and Chemistry crossword puzzle
Across
  1. Subatomic particle found in the atomic nucleus.
  2. Substances you get after the chemical reaction occurs
  3. Substances that take part in a chemical reaction.
  4. The electric charge that flows through the cross section of a conductor per unit of time.
  5. One of the three types of chemical bond we have studied
  6. Famous radioactive element
  7. BeS
  8. Unit of the international system of units to measure energy.
  9. This is the name given to those atoms of the same element with the same number of protons but different numbers of neutrons in the atomic nucleus.
  10. The kinetic energy of a body is directly related to its ______________.
Down
  1. Electrical components can be connected in series or in _____________________ .
  2. A fundamental quantity of the international system of units (SI)
  3. Country of Birth of the “Father of the Periodic Table”
  4. A step of the scientific method
  5. In the international system of units we use the unit watt, W, to measure _______________.
  6. a rocky planet
  7. Country of birth of the discoverer of platinum
  8. The unit by which temperature is measured in the International System of Units (S.I.)
  9. This is the name of the columns of the periodic table
  10. One of the three types of chemical bonds we have studied

20 Clues: BeS • a rocky planet • Famous radioactive element • A step of the scientific method • Country of birth of the discoverer of platinum • Subatomic particle found in the atomic nucleus. • Substances that take part in a chemical reaction. • Substances you get after the chemical reaction occurs • This is the name of the columns of the periodic table • ...

Atomic Structure and Balancing Equations 2025-05-16

Atomic Structure and Balancing Equations crossword puzzle
Across
  1. Elements found in groups 3-12
  2. Atoms with the same number of protons but different numbers of neutrons
  3. combination of elements that make up a substance
  4. Atoms with a net charge other than 0
  5. Elements found in Group 1
  6. Substances created by a chemical reaction
  7. Elements found in group 2
  8. Weighted average of all isotopes of a substance
  9. Elements found in group 18
  10. An atom with a negative charge
  11. the difference between the number of protons and electrons in an atom
  12. Elements with properties of both metals and nonmetals
Down
  1. Used to show how many atoms of each element are in a specific chemical formula
  2. Row on the periodic table
  3. Numbers used to balance a chemical equation
  4. Process of splitting liquids using electricity
  5. Elements found in group 17
  6. Substances used as ingredients in a chemical reaction
  7. A specific type of atom
  8. The number of protons in the nucleus of an atom
  9. An atom with a positive charge
  10. The total number of particles in the nucleus of an atom
  11. Type of element found on the left side of the periodic table
  12. Column of the periodic table
  13. Type of element found on the right side of the periodic table

25 Clues: A specific type of atom • Row on the periodic table • Elements found in Group 1 • Elements found in group 2 • Elements found in group 17 • Elements found in group 18 • Column of the periodic table • Elements found in groups 3-12 • An atom with a positive charge • An atom with a negative charge • Atoms with a net charge other than 0 • Substances created by a chemical reaction • ...

ThermoChemistry 2012-12-03

ThermoChemistry crossword puzzle
Across
  1. Used to measure energy changes in a chemical system
  2. Everything around
  3. A chemical equation where enthalpy change value is found using step equations
  4. Absorbing thermal energy
  5. Raise the temperature mass of a substance1°C or 1K
  6. The energy change of the reaction of one mole of a substance at 100 kPa
  7. Energy available as a result of its moving molecules
  8. The study of energy transfer
  9. Releasing thermal energy
  10. Neither matter nor energy can move in or out
Down
  1. The study of energy involved in chemical reactions
  2. Both matter and energy can move in or out
  3. a change in the protons or neutrons in an atom
  4. a graphical representation of the energy transferred during a physical or chemical change
  5. a change in the chemical bonds between atoms
  6. Quantity of energy associated with the formation of one mole in their standard states
  7. A change in the form of a substance, in which no chemical bonds are broken
  8. The energy change associated with the reaction of one mole of a substance
  9. Reactants and products under study
  10. The enthalpy change associated with a change involving one mole of a substance
  11. Average kinetic energy of the particles in a sample of matter
  12. Amount of energy transferred between substances
  13. Difference in enthalpies of reactants and products during a change
  14. Energy can move in or out, but not matter
  15. The value of the Enthalpy Change equals the sum of the enthalpy change for each of the individual steps

25 Clues: Everything around • Absorbing thermal energy • Releasing thermal energy • The study of energy transfer • Reactants and products under study • Both matter and energy can move in or out • Energy can move in or out, but not matter • a change in the chemical bonds between atoms • Neither matter nor energy can move in or out • a change in the protons or neutrons in an atom • ...

Physical & Chemical Changes 2021-04-01

Physical & Chemical Changes crossword puzzle
Across
  1. the transition of a substance directly from the solid to the gas state, without passing through the liquid state.
  2. changes affecting the form of a chemical substance, but not its chemical composition.
  3. any property that is measurable, whose value describes a state of a physical system.
  4. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  5. the process of turning from liquid into vapor.
  6. the degree of compactness a substance.
  7. the temperature at which a liquid turns into a solid when cooled.
Down
  1. any of a material's properties that becomes evident during, or after, a chemical reaction.
  2. the temperature at which a liquid boils and turns to vapor.
  3. a substance made by mixing other substances together.
  4. the process of water vapor turning back into liquid water
  5. occur when a substance combines with another to form a new substance, called chemical synthesis
  6. the temperature at which a given solid will melt.
  7. a book forming part of a work or series.
  8. a coherent, typically large body of matter with no definite shape.
  9. the feel, appearance, or consistency of a surface or substance.
  10. a means of solving a problem or dealing with a difficult situation.
  11. a piece of metal known to weigh a definite amount and used on scales to determine how heavy an object or quantity of a substance is.
  12. an affair or situation under consideration; a topic.
  13. an extremely small amount of a thing or quality.

20 Clues: the degree of compactness a substance. • a book forming part of a work or series. • the process of turning from liquid into vapor. • an extremely small amount of a thing or quality. • the temperature at which a given solid will melt. • an affair or situation under consideration; a topic. • a substance made by mixing other substances together. • ...

Chem 2022-06-02

Chem crossword puzzle
Across
  1. A glass container (generally in a cylindrical shape) with a flat bottom
  2. energy of motion.
  3. A set of at least two atoms, identical or not, chemically attached to each other
  4. the internal part of an atom. It is composed of neutrons and protons
  5. A negatively charged particle that comprises the external part of the atom
  6. when a solid changes directly into a gas.
  7. an atom or molecule that has gained or lost one or more electrons.
  8. they include any chemical that gives off protons or H+ in water.
  9. A chemical element with atomic number 3, symbol Li. It is an alkali metal
Down
  1. an elementary particle, constitutive of the atomic nucleus. One exception is the normal hydrogen nucleus. It is electrically neutral.
  2. a chemical reaction in which atoms add to a carbon-carbon multiple bond.
  3. any organic molecule that has an -OH group.
  4. a tool used to sample a solution
  5. A particle that makes up the nucleus of an atom and has a positive charge identical to that of the electron
  6. a chemical reaction producing a transfer of electrons by thermal action
  7. A fragment of a chemical component constituting the tiniest quantity able to be associated with another element
  8. A chemical element with atomic number 55, symbol Cs, the most alkaline of the alkali metals
  9. an ionic compound that dissolves in water to produce ions, which can conduct electricity
  10. any organic molecule that has a -COH group.
  11. An ionic compound formed from reacting an acid and a base

20 Clues: energy of motion. • a tool used to sample a solution • when a solid changes directly into a gas. • any organic molecule that has an -OH group. • any organic molecule that has a -COH group. • An ionic compound formed from reacting an acid and a base • they include any chemical that gives off protons or H+ in water. • ...

Enzymes!!! 2021-02-05

Enzymes!!! crossword puzzle
Across
  1. Both the protein portions and nonprotein portions of the enzyme
  2. An increase in ____ leads to an increased rate of reaction
  3. Metal ions such as Mg^2+ may be necessary to assist enzymes
  4. Process that prevents wasteful production of a substance
  5. Inhibitors that bind to the allosteric site and change the shape of the active site
  6. The protein-portion of an enzyme
  7. Enzymes that are released outside the cell
  8. Enzymes convert specific substrate into new substances
  9. The minimum amount of energy required for a chemical reaction to occur
  10. Biological catalysts that increase the rate of a chemical reaction
Down
  1. Enzymes can only catalyze these specific molecules
  2. An enzyme's loss of shape, and therefore, function
  3. An endoenzyme that catabolizes lactose into glucose and galactose
  4. Enzymes that stay intracellular
  5. Inhibitors that bind to the active site on an enzyme
  6. The specific location of the enzyme where the substrate binds to
  7. Organic cofactors include FAD, NAD+
  8. An exoenzyme that protects against penicillin
  9. Enzymes are generally made of which macromolecule

19 Clues: Enzymes that stay intracellular • The protein-portion of an enzyme • Organic cofactors include FAD, NAD+ • Enzymes that are released outside the cell • An exoenzyme that protects against penicillin • Enzymes are generally made of which macromolecule • Enzymes can only catalyze these specific molecules • An enzyme's loss of shape, and therefore, function • ...

Chapter 13- Kamryn Merrill 2020-10-18

Chapter 13- Kamryn Merrill crossword puzzle
Across
  1. when there is a net absorbtion of energy
  2. As the temperature of a reaction is increased, the rate of the reaction
  3. how quickly the concentration of reactant decreases and how quickly the concentration of products increases
  4. amount of energy required to pull two bonded atoms apart
  5. during a ______ reaction one or more new compounds are formed
Down
  1. what type of chemical reaction is this:A+B→AB
  2. When there is a net release of energy
  3. acids and bases ionize completely in water
  4. The minimum amount of energy required to to cause a reaction to occur.
  5. acids and bases do not ionize completely in water

10 Clues: When there is a net release of energy • when there is a net absorbtion of energy • acids and bases ionize completely in water • what type of chemical reaction is this:A+B→AB • acids and bases do not ionize completely in water • amount of energy required to pull two bonded atoms apart • during a ______ reaction one or more new compounds are formed • ...

Bio 1.2 Enzyme CW (mini) 2025-08-20

Bio 1.2 Enzyme CW (mini) crossword puzzle
Across
  1. Most enzymes belong to this group of biomolecules
  2. The minimum amount of energy required to start a reaction
  3. The substance on which an enzyme acts
  4. A biological catalyst that reduces the amount of energy needed by cells for chemical reactions
  5. Enzymes are highly ____________, they only bind to certain substrates for reaction to happen.
Down
  1. The area of an enzyme where substrate molecules bind and undergo a reaction
  2. This happens when enzymes change shape due to exposure to different temperature and pH
  3. A substance that increases the rate of chemical reaction without being consumed in the reaction
  4. Enzymes can _________ and break things.
  5. Most enzymes end with the suffix -_______

10 Clues: The substance on which an enzyme acts • Enzymes can _________ and break things. • Most enzymes end with the suffix -_______ • Most enzymes belong to this group of biomolecules • The minimum amount of energy required to start a reaction • The area of an enzyme where substrate molecules bind and undergo a reaction • ...

Chemical Change 2024-06-11

Chemical Change crossword puzzle
Across
  1. a process that leads to the chemical transformation of one set of chemical substances to another
  2. a process by which electric current is passed through a substance to effect a chemical change
  3. a type of attraction force that binds the atoms together
  4. any chemical reaction that absorbs heat from its environment
  5. any substance composed of identical molecules consisting of atoms of two or more chemical elements
  6. the process by which green plants and certain other organisms transform light energy into chemical energy.
Down
  1. a type of change where the physical properties of matter change
  2. a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.
  3. a chemical reaction that releases energy by light or heat.

9 Clues: a type of attraction force that binds the atoms together • a chemical reaction that releases energy by light or heat. • any chemical reaction that absorbs heat from its environment • a type of change where the physical properties of matter change • a process by which electric current is passed through a substance to effect a chemical change • ...

Thermochmistry Vocabulary 2017-04-04

Thermochmistry Vocabulary crossword puzzle
Across
  1. The energy required to change a substance from a solid to a liquid
  2. more of this means more energy is needed to effect a temperature change
  3. an exothermic state change that produces liquid
  4. the heat absorbed or evolved in a chemical reaction
  5. measures average kinetic energy
  6. Energy may be converted from one form to another but total quantity of energy remains constant
  7. A device used to measure the amount of heat absorbed or evolved in a physical or chemical change
  8. The change in enthalpy for a reaction at a given temperature and pressure
  9. requires +40.7kJ per mole of water
  10. The energy that flows into or out of a system because of a difference in temperature
  11. A chemical reaction or a physical change in which reactants have more energy than products
  12. The energy an object has by virtue of its position in a field of force
  13. what holds the particles of a solid or liquid together
Down
  1. accepts or provides energy from or to the system
  2. a chemical equation that includes the amount of heat absorbed or released
  3. point the temperature when the vapor pressure of a liquid equals the pressure above the liquid
  4. shows heat added versus temperature change for a substance
  5. the part of the universe that we are studying, the reactants and products
  6. the study of energy changes in chemical reactions and physical processes
  7. also known as a state change
  8. The SI unit of energy
  9. Energy The energy associated with an object by virtue of its motion
  10. The quantity of heat needed to raise the temperature of the sample of substance by 1°C
  11. The energy required to boil one mole at the boiling point
  12. shows the energy of reactants and products and the enthalpy change for a specific process
  13. A chemical reaction or a physical change in which heat is absorbed (q is positive)
  14. heat used to enact a state change, overcomes IMFs
  15. c, the amount of heat energy required to raise the temp of 1g of a substance by 1K
  16. A non-SI unit of energy equal to 4.184 J
  17. the temperature at which a substance melts or freezes
  18. the potential or capacity to move matter
  19. an exothermic state change that occurs at 0 degrees Celsius
  20. an endothermic state change that produces liquid
  21. energy is a ________ in exothermic reactions

34 Clues: The SI unit of energy • also known as a state change • measures average kinetic energy • requires +40.7kJ per mole of water • A non-SI unit of energy equal to 4.184 J • the potential or capacity to move matter • energy is a ________ in exothermic reactions • an exothermic state change that produces liquid • accepts or provides energy from or to the system • ...

Chemistry Unit 2 Crossword Puzzle 2025-06-07

Chemistry Unit 2 Crossword Puzzle crossword puzzle
Across
  1. Process in which a compound is broken down
  2. C3H8 + 5O2 → 4H2O + 3CO2 is what type of reaction?
  3. The number of moles of solute per liter of solution
  4. Reaction that results in a salt and water
  5. A measure of the efficiency of a chemical reaction, comparing actual and theoretical product amounts
Down
  1. Process of reducing the concentration of a solution by adding more solvent
  2. Solubility state of AgNO3
  3. The simplest whole-number ratio of atoms of each element in a compound
  4. A reaction with CO as the product is a(n) _______ combustion
  5. The process when an element loses an electron in a chemical reaction

10 Clues: Solubility state of AgNO3 • Reaction that results in a salt and water • Process in which a compound is broken down • C3H8 + 5O2 → 4H2O + 3CO2 is what type of reaction? • The number of moles of solute per liter of solution • A reaction with CO as the product is a(n) _______ combustion • The process when an element loses an electron in a chemical reaction • ...

Unit B- Matter and Chemical Change 2017-11-10

Unit B- Matter and Chemical Change crossword puzzle
Across
  1. Mass of one atom of an element calculated from the total number of protons, neutrons and electrons of that atom.
  2. The smallest part of an element that is representative of that element.
  3. substance that reacts with another substance or substances in a chemical reaction to create new substances with a new set of properties
  4. Orbit of electrons around the nucleus of an atom.
  5. Pure substance formed when at least one metal and non-metal combines
  6. Number of protons in the nucleus of one atom of an element.
  7. Element that is shiny, malleable, ductile and conducts electricity.
  8. Pure substance formed when non-metals combine.
  9. Positively charged particle in the nucleus of an atom.
  10. Change of state from from a solid to a liquid.
  11. An experiment in which one or more products of a chemical reaction are contained.
  12. Neutral particle in the nucleus of an atom.
  13. Change of state from a liquid to a gas.
  14. Atom has become electrically charged because it has gained or lost electrons.
Down
  1. Cloudy mixture that cannot be separated.
  2. Mixture in which the different substances are easy to see.
  3. Made up of two or more substances combined together.
  4. Mixture of two or more pure substances that looks like one.
  5. Change in the appearance of a substance that doesn’t change the composition.
  6. New substance created in a chemical reaction between reactants
  7. Pure substance that cannot be broken down into substances.
  8. An element that that has metallic and non-metallic properties.
  9. (in chemistry) Vertical column of elements in the periodic table. Also called a group
  10. Change of state from a gas to a liquid.
  11. Chemical combination of two or more elements in a specific ratio.
  12. Horizontal row of elements in the periodic table.

26 Clues: Change of state from a gas to a liquid. • Change of state from a liquid to a gas. • Cloudy mixture that cannot be separated. • Neutral particle in the nucleus of an atom. • Pure substance formed when non-metals combine. • Change of state from from a solid to a liquid. • Orbit of electrons around the nucleus of an atom. • ...

unit 2 2023-10-05

unit 2 crossword puzzle
Across
  1. (adenosine triphosphate) main energy source that cells use for most of their work
  2. Process that does not require oxygen
  3. A mixture of gases that surrounds a planet or moon.
  4. The process where plants use sunlight, water, and carbon dioxide to produce sugar and release oxygen.
  5. An organelle found in plant and algae cells where photosynthesis occurs
  6. A chemical substance that is present at the start of a chemical reaction
  7. (Adenosine Diphosphate) The compound that remains when a phosphate group is removed from ATP, releasing energy
  8. the breakdown of food without the use of oxygen
  9. reaction the second stage of photosynthesis that starts with ATP, NADPH, and Carbon dioxide and produces glucose
  10. cycle second stage of cellular respiration, in which pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions
Down
  1. pigment that absorbs light energy in a chloroplast
  2. Most abundant gas in the atmosphere
  3. An organism that makes its own food
  4. reactions The first of two major stages in photosynthesis (preceding the Calvin cycle). These reactions, which occur on the thylakoid membranes of the chloroplast or on membranes of certain prokaryotes, convert solar energy to the chemical energy of ATP and NADPH, releasing oxygen in the process.
  5. the solid part of the earth consisting of the crust and outer mantle
  6. A substance produced in a chemical reaction
  7. Process that requires oxygen
  8. All the water at and near the surface of the earth, 97% of which is in oceans
  9. respiration Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen
  10. Anything that has mass and takes up space

20 Clues: Process that requires oxygen • Most abundant gas in the atmosphere • An organism that makes its own food • Process that does not require oxygen • Anything that has mass and takes up space • A substance produced in a chemical reaction • the breakdown of food without the use of oxygen • pigment that absorbs light energy in a chloroplast • ...

Macromolecules and Cell Structure 2024-09-30

Macromolecules and Cell Structure crossword puzzle
Across
  1. A polymer made of monomers called amino acids.
  2. Where photosynthesis takes place in a plant cell.
  3. The absorption of heat energy during a chemical reaction.
  4. The substance that the enzyme act upon.
  5. Complex carbohydrates made up of many sugar units bonded together.
  6. Macromolecule comprised of nucleotides.
  7. Special types of proteins that act as biological catalysts.
  8. Sugar molecules.
  9. DNA and RNA building blocks.
  10. Gelatinous liquid that fills the inside of a cell.
  11. Control center of a cell.
  12. The sugar formed when two monosaccharides are joined by glycosidic linkage.
  13. Molecules that combine to make proteins.
  14. Fatty compounds that perform a variety of functions in your body.
  15. All of the solute is dissolved and the liquid space is full.
  16. The release of heat energy during a chemical reaction.
  17. Results of chemical reactions.
  18. Processes and packages proteins and lipids in the cell.
Down
  1. A thin barrier that surrounds the cell and regulates what enters and exits.
  2. A sweet syrupy trihydroxy alcohol obtained by saponification of fats and oils.
  3. A simple sugar that consists of a single sugar unit.
  4. Microscope hair-like structures involved in the locomotion of a cell.
  5. Collection of tubes, that make, package, and transport proteins and fats.
  6. Storage structure in a cell.
  7. Solute is little dissolved but not all.
  8. A protective structure that surrounds the plant cell.
  9. The minimum energy that is required for a chemical reaction to proceed.
  10. Genetic term for any monosaccharide and disaccharide.
  11. The building blocks of the fat in our body and in the food we eat.
  12. Responsible for protein synthesis.

30 Clues: Sugar molecules. • Control center of a cell. • Storage structure in a cell. • DNA and RNA building blocks. • Results of chemical reactions. • Responsible for protein synthesis. • The substance that the enzyme act upon. • Macromolecule comprised of nucleotides. • Solute is little dissolved but not all. • Molecules that combine to make proteins. • ...

Unit 2 2024-10-30

Unit 2 crossword puzzle
Across
  1. A substance that takes part in and undergoes change during a chemical reaction.
  2. The variable in an experiment that is measured or observed.
  3. A material that allows heat to pass through it efficiently.
  4. The process by which a liquid changes into a gas, usually due to heating.
  5. The process by which a gas changes into a liquid when cooled.
  6. A change that forms a new substance and cannot be undone.
  7. A material that allows heat or electricity to flow through it easily.
  8. Factors in an experiment that are kept constant to ensure a fair test.
  9. A characteristic of a substance that can be observed without changing its chemical identity.
  10. A chemical reaction where iron reacts with water and oxygen to form iron oxide (rust).
  11. A physical change where a solute disperses into a solvent to form a solution.
  12. The liquid in which a solute is dissolved to form a solution.
Down
  1. The variable in an experiment that is deliberately changed or manipulated.
  2. A change that can be undone, returning a substance to its original state.
  3. A method for separating solids from liquids by passing the mixture through a filter.
  4. The substance that is dissolved in a solvent to form a solution.
  5. An experiment where only the independent variable is changed, and all other variables are controlled
  6. A material that allows the flow of electric current.
  7. The temperature at which a substance changes from solid to liquid.
  8. A material that resists the flow of heat or electricity.
  9. reaction A process in which substances interact to form new substances with different properties.

21 Clues: A material that allows the flow of electric current. • A material that resists the flow of heat or electricity. • A change that forms a new substance and cannot be undone. • The variable in an experiment that is measured or observed. • A material that allows heat to pass through it efficiently. • The process by which a gas changes into a liquid when cooled. • ...

Properties & Changes of Matter Crossword 2026-03-03

Properties & Changes of Matter Crossword crossword puzzle
Across
  1. a method of measuring volume by how much water an object pushes aside
  2. the ability of a material to be drawn into a wire
  3. a substance that changes color to show pH
  4. the basic unit of mass in the metric system
  5. the amount of space an object takes up
  6. what a substance is made of
  7. a measurement system used mainly in the United States
  8. the chemical breakdown of organic material
  9. the chemical reaction of iron with oxygen forming iron oxide
  10. the amount of mass in a given volume
  11. a dull coating that forms on metal due to a chemical reaction
  12. the ability of a substance to catch fire
  13. a scale that measures how acidic or basic a substance is
  14. a characteristic that describes how a substance reacts
Down
  1. a substance with a pH of 7
  2. the ability of a material to be hammered into thin sheets
  3. the basic unit of volume in the metric system
  4. mass is not created or destroyed in a chemical reaction
  5. a measurement system based on powers of ten
  6. the ability of a material to be attracted to a magnet
  7. the ability of a substance to burn
  8. the basic unit of length in the metric system
  9. a characteristic observed without changing a substance
  10. the degree to which a substance can harm living things
  11. the amount of matter in an object
  12. a substance that releases hydroxide ions (OH⁻) in water
  13. a substance that releases hydrogen ions (H⁺) in water
  14. a temperature scale based on the freezing and boiling points of water

28 Clues: a substance with a pH of 7 • what a substance is made of • the amount of matter in an object • the ability of a substance to burn • the amount of mass in a given volume • the amount of space an object takes up • the ability of a substance to catch fire • a substance that changes color to show pH • the chemical breakdown of organic material • ...

Chamical reaction glossary 2021-02-04

Chamical reaction glossary crossword puzzle
Across
  1. a substance that is added to soil to help plants grow
  2. the temperature at which a substance changes from the liquid phase to the gas phase
  3. something that can be observed about a substance, such as color, smell, or boiling point
  4. a process in which atoms rearrange to form new substances
  5. the relative size of things
  6. a starting substance that is part of a chemical reaction
  7. the temperature at which a substance changes from the solid phase to the liquid phase
Down
  1. able to cause damage
  2. a structure formed by repeating groups of atoms that link together in a large network
  3. the tiny pieces that all matter—all the stuff in the world—is made of
  4. something that is made of all the same atoms or groups of atoms
  5. a group of atoms joined together in a particular way
  6. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
  7. an ending substance that is made during a chemical reaction
  8. to change the order or position of something

15 Clues: able to cause damage • the relative size of things • to change the order or position of something • a group of atoms joined together in a particular way • a substance that is added to soil to help plants grow • a starting substance that is part of a chemical reaction • a process in which atoms rearrange to form new substances • ...

Enzymes crossword 2021-10-12

Enzymes crossword crossword puzzle
Across
  1. The amount of enzyme present in a reaction is measured by the activity it catalyzes
  2. assumes that the active site of the enzyme and the substrate are equal shaped
  3. type of enzyme inhibition where the inhibitor reduces the activity of the enzyme and binds equally well to the enzyme whether
  4. the amount of substrate present that can be turned into product
  5. the chemical species being observed in a chemical reaction
  6. the minimum amount of energy that is required to activate atoms or molecules to a condition
  7. involves the breaking of many of the weak linkages
  8. consists of amino acid residues joined by peptide bonds.
  9. reduce the rate of an enzyme-catalyzed reaction
Down
  1. temperature at which a procedure is best carried out
  2. a substrate binds to an active site and both change shape slightly
  3. interruption of a chemical pathway
  4. substance that acts as a catalyst in living organisms
  5. a groove or pocket formed by the folding pattern of the protein
  6. the pH resulting in maximal activity of a particular enzyme

15 Clues: interruption of a chemical pathway • involves the breaking of many of the weak linkages • temperature at which a procedure is best carried out • substance that acts as a catalyst in living organisms • consists of amino acid residues joined by peptide bonds. • the chemical species being observed in a chemical reaction • ...

Unit 3 Matter and Energy in Living Systems 2024-11-08

Unit 3 Matter and Energy in Living Systems crossword puzzle
Across
  1. a process which requires oxygen to take place
  2. energy carrying molecule (ADP + P)
  3. (two words) the first stage of cellular respiration sometime called the citric acid cycle
  4. energy carrying molecule (NADP + H + 2e-)
  5. (two words hyphenated) ____________________ reaction, uses energy from the light-dependent reaction to make sugars
  6. a process that does not require oxygen
  7. an anaerobic form to create ATP when oxygen is not available
Down
  1. (two words) a release of chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present
  2. process to capture light energy and covert it to chemical energy
  3. (two words hyphenated) ____________________ reaction, which it the "photo" part of photosynthesis. This stage requires light.
  4. the preliminary stage to cellular respiration whose name means, "breaking sugar"
  5. capture light energy and covert it to chemical energy
  6. (three words) the second stage of cellular respiration which uses proteins embedded in the inner membrane of the mitochondrion to make massive amounts of ATP
  7. the organelle where light absorption and photosynthesis occurs
  8. the organelle where cellular respiration takes place

15 Clues: energy carrying molecule (ADP + P) • a process that does not require oxygen • energy carrying molecule (NADP + H + 2e-) • a process which requires oxygen to take place • the organelle where cellular respiration takes place • capture light energy and covert it to chemical energy • an anaerobic form to create ATP when oxygen is not available • ...

End of Year Review Project 2025-05-13

End of Year Review Project crossword puzzle
Across
  1. a process where one or more substances are transformed into new substances with different properties.
  2. the smallest unit of a chemical element, possessing the element's chemical properties
  3. a homogeneous mixture of two or more substances where the dissolved particles are evenly spread and too small to be seen or settle out.
  4. a mixture that has particles ranging between 1 and 1000 nanometers in diameter, yet are still able to remain evenly distributed throughout the solution
  5. a subatomic particle found within the nucleus of an atom, along with protons.
  6. the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.
  7. a mixture where the components are not uniformly distributed and can be visually distinguished.
  8. a substance formed when two or more different elements are chemically bonded together in a fixed ratio.
  9. a type of mixture where the components are evenly distributed and appear uniform throughout, meaning the mixture has the same composition at every point
  10. alters the appearance of matter but doesn't change its chemical composition.
  11. a fundamental substance that cannot be broken down into simpler substances by ordinary chemical means.
  12. the unique pattern of light (electromagnetic radiation) emitted when an atom, ion, or molecule transitions from a higher to a lower energy state
  13. a pure form of matter
Down
  1. a separation process that relies on the principle that different liquids have different boiling points.
  2. a characteristic of a substance that can be observed or measured without changing the substance's identity.
  3. The number of protons in a nucleus
  4. represents the probable location of an electron around an atom's nucleus
  5. negatively charged subatomic particles found in all atoms, surrounding the positively charged nucleus
  6. a subatomic particle with a positive electrical charge.
  7. fixed distances from the nucleus where electrons can reside
  8. a type of heterogeneous mixture where solid particles do not dissolve in a liquid solution.
  9. a membrane-bound organelle found in eukaryotic cells that houses the cell's genetic material, DNA, organized into structures called chromosomes.
  10. the scattering of light by particles in a colloid or very fine suspension, making the beam of light visible.
  11. how a substance interacts with other substances during a chemical reaction, or its potential to undergo such a reaction
  12. the sum of the number of protons and neutrons in its nucleus.
  13. using particle accelerators and nuclear reactors, natural radioactive decay, and chemical separation.

26 Clues: a pure form of matter • The number of protons in a nucleus • a subatomic particle with a positive electrical charge. • fixed distances from the nucleus where electrons can reside • the sum of the number of protons and neutrons in its nucleus. • represents the probable location of an electron around an atom's nucleus • ...

Enzymes crossword 2021-10-12

Enzymes crossword crossword puzzle
Across
  1. The amount of enzyme present in a reaction is measured by the activity it catalyzes
  2. assumes that the active site of the enzyme and the substrate are equal shaped
  3. type of enzyme inhibition where the inhibitor reduces the activity of the enzyme and binds equally well to the enzyme whether
  4. the amount of substrate present that can be turned into product
  5. the chemical species being observed in a chemical reaction
  6. the minimum amount of energy that is required to activate atoms or molecules to a condition
  7. involves the breaking of many of the weak linkages
  8. consists of amino acid residues joined by peptide bonds.
  9. reduce the rate of an enzyme-catalyzed reaction
Down
  1. temperature at which a procedure is best carried out
  2. a substrate binds to an active site and both change shape slightly
  3. interruption of a chemical pathway
  4. substance that acts as a catalyst in living organisms
  5. a groove or pocket formed by the folding pattern of the protein
  6. the pH resulting in maximal activity of a particular enzyme

15 Clues: interruption of a chemical pathway • involves the breaking of many of the weak linkages • temperature at which a procedure is best carried out • substance that acts as a catalyst in living organisms • consists of amino acid residues joined by peptide bonds. • the chemical species being observed in a chemical reaction • ...

Biology Vocabulary crossword Labs 2019-01-03

Biology Vocabulary crossword Labs crossword puzzle
Across
  1. During all phases (except cell division), DNA not coiled into chromosomes, exists as a grainy material
  2. sister chromatids separate and centromeres divide, pulled apart by shortening spindle fibers
  3. Does not make ATP but it allows glycosis to continue
  4. Many short hairlike structures that extend from the surface and allow movement
  5. an inherited trait that gives an advantage to individual organisms and is passed on to future generations
  6. The powerhouse of the cell. Creates ATP by using chemical energy and oxygen.
  7. the amount of energy that needs to be absorbed for a chemical reaction to take place
  8. chemical reaction that requires a net input of energy. Absorption
  9. Produces molecules that carry energy to the second part of cellular respiration
Down
  1. spindle fibers attach to centromere of each pair of sister chromatids and line up in the middle of the cell
  2. C3, H6, O3, is what causes your muscles to "burn" during hard exercise
  3. the study and manipulation of DNA on a molecular level
  4. the variety of life across the biosphere
  5. chemical reaction that yields a net release of energy in the form of heat.
  6. allele that is expressed when two different alleles are present in an organisms genotype.
  7. collection of all of an organisms physical characteristics.
  8. Found on the nuclear envelope and allows for the transfer of material in a out of the nucleus
  9. characteristics of having two different alleles that appear at the same locus of sister chromatids.
  10. any of the alternative forms of a gene that occurs at a specific plane on a chromosome.
  11. all of an organism genetic material.

20 Clues: all of an organism genetic material. • the variety of life across the biosphere • Does not make ATP but it allows glycosis to continue • the study and manipulation of DNA on a molecular level • collection of all of an organisms physical characteristics. • chemical reaction that requires a net input of energy. Absorption • ...

Biology Vocabulary crossword Labs 2019-01-03

Biology Vocabulary crossword Labs crossword puzzle
Across
  1. any of the alternative forms of a gene that occurs at a specific plane on a chromosome.
  2. an inherited trait that gives an advantage to individual organisms and is passed on to future generations
  3. Produces molecules that carry energy to the second part of cellular respiration
  4. all of an organism genetic material.
  5. The powerhouse of the cell. Creates ATP by using chemical energy and oxygen.
  6. collection of all of an organisms physical characteristics.
  7. Does not make ATP but it allows glycosis to continue
  8. the study and manipulation of DNA on a molecular level
  9. sister chromatids separate and centromeres divide, pulled apart by shortening spindle fibers
  10. characteristics of having two different alleles that appear at the same locus of sister chromatids.
Down
  1. Many short hairlike structures that extend from the surface and allow movement
  2. C3, H6, O3, is what causes your muscles to "burn" during hard exercise
  3. chemical reaction that yields a net release of energy in the form of heat.
  4. chemical reaction that requires a net input of energy. Absorption
  5. During all phases (except cell division), DNA not coiled into chromosomes, exists as a grainy material
  6. the amount of energy that needs to be absorbed for a chemical reaction to take place
  7. Found on the nuclear envelope and allows for the transfer of material in a out of the nucleus
  8. allele that is expressed when two different alleles are present in an organisms genotype.
  9. the variety of life across the biosphere
  10. spindle fibers attach to centromere of each pair of sister chromatids and line up in the middle of the cell

20 Clues: all of an organism genetic material. • the variety of life across the biosphere • Does not make ATP but it allows glycosis to continue • the study and manipulation of DNA on a molecular level • collection of all of an organisms physical characteristics. • chemical reaction that requires a net input of energy. Absorption • ...

Word Wall Words #2 2023-10-26

Word Wall Words #2 crossword puzzle
Across
  1. A mixture that often looks the same throughout the entire mixture.
  2. A reaction that absorbs energy.
  3. The universal measuring system based on units of tens.
  4. A chemical bond formed when two atoms share electrons
  5. The variable that changes as a result of the independent variable manipulation.
  6. A mixture that features distinct components that can be easily seen and sorted.
  7. The practice of using less of a resource so that it can last longer.
  8. A substance formed as a result of a chemical reaction.
  9. The electrons that are in the highest energy level of an atom and that are involved in chemical bonding.
  10. A neutral group of two or more atoms held together by covalent bonds.
  11. A measure of how much matter is in an object.
Down
  1. The amount of space that matter occupies.
  2. bond The attraction between ions with opposite charges. The atoms gain or lose electrons.
  3. A mixture containing a solvent and at least one solute that has the same properties throughout; a mixture in which one substance dissolves another.
  4. The variable you manipulate or vary in an experimental study to explore its effects.
  5. A pure substance that cannot be broken down into other substances by chemical or physical means.
  6. A substance made of two or more elements chemically combined in a specific ratio or proportion.
  7. A reaction that releases energy, usually in the form of heat.
  8. Able to be changed or adapted.
  9. The basic particle from which all elements are made; the smallest particle of an element that has the properties of that element.
  10. The measurement of how much mass of a substance is contained in a given volume.

21 Clues: Able to be changed or adapted. • A reaction that absorbs energy. • The amount of space that matter occupies. • A measure of how much matter is in an object. • A chemical bond formed when two atoms share electrons • The universal measuring system based on units of tens. • A substance formed as a result of a chemical reaction. • ...

Enzymes 2026-01-06

Enzymes crossword puzzle
Across
  1. breaks down cellulose
  2. naming system
  3. prevents from forming
  4. plunging food in boiling water
  5. breaks down bitter flavor compounds
  6. charged ions in a solution
  7. the substance on which the enzyme acts
  8. coagulates in the casein to form curds
  9. a specialized protein that speeds up a chemical reaction
  10. softens the dough
Down
  1. releases sugar to feed yeast
  2. converts sucrose to glucose and fructose
  3. inhibits enzymatic browning
  4. prevents crystallization of lactose
  5. react only in the presence of oxygen
  6. soaked in a flavorful solution
  7. a substance that speeds up a reaction without being affected
  8. process that changes the shape of protein molecules
  9. destroys hydrogen peroxide
  10. must be present for an enzymatic reaction to occur

20 Clues: naming system • softens the dough • breaks down cellulose • prevents from forming • charged ions in a solution • destroys hydrogen peroxide • inhibits enzymatic browning • releases sugar to feed yeast • soaked in a flavorful solution • plunging food in boiling water • prevents crystallization of lactose • breaks down bitter flavor compounds • react only in the presence of oxygen • ...

Chemistry Vocabulary 2022-11-20

Chemistry Vocabulary crossword puzzle
Across
  1. _______ is an atom or collection of atoms where the ratio of electrons to protons is different.
  2. A molecule made up of two identical atoms is a _____________.
  3. a mixture of two or more distinct chemical elements mixed in a certain ratio is a ________.
  4. An amount that is multiplied by a letter is a __________.
  5. An atom (or a collection of atoms) receives or loses electrons, compounds consisting of ions that produce charged particles are created are _______.
  6. A process when one ingredient of a compound is replaced for another is a _____________.
  7. A discovered symbol that is written under the element is a ___________.
Down
  1. ______________ happens when the ionic components of two compounds are swapped, creating two new compounds.
  2. _________ is the exchange of several electron pairs between two atoms.
  3. A material that remains after a chemical event has taken place is a _________.
  4. A two-valence electron chemical connection between two atoms is a __________.
  5. A chemical process where one reactant disintegrates into two or more products is _________.
  6. __________ is a chemical reaction that produces heat when a material interacts quickly with oxygen.
  7. A material that undergoes a chemical reaction when mixed with another substance is a ________.
  8. The blending of concepts to create a theory or system is a _________.

15 Clues: An amount that is multiplied by a letter is a __________. • A molecule made up of two identical atoms is a _____________. • The blending of concepts to create a theory or system is a _________. • _________ is the exchange of several electron pairs between two atoms. • A discovered symbol that is written under the element is a ___________. • ...

Science Vocab 2021-01-25

Science Vocab crossword puzzle
Across
  1. - Chemical reaction in which thermal energy is released.
  2. - Property of a substance defining how easily it ignites and burns.
  3. The ability to rust do to oxygen
  4. - A measurable characteristic (size, shape, or state ) of matter not involving interactions with other substances (as color, hardness, boiling point).
  5. The ability to be hammered or pressed down
  6. - Process where one or more substances are altered into new and different substances.
  7. The ability to be drawn out into thin wires
  8. - The readiness of a substance to produce hydrogen ions.
  9. - The amount of space an object occupies.
  10. - The external features of a substance.
  11. - A solid substance that forms from a chemical reaction that takes place in a liquid solution.
  12. - Capacity of acid to react with a base, measured by the number of hydrogen atoms that can be replaced by a base.
  13. - Measure of acidity or basicity of a substance.
  14. - Chemical reaction in which thermal energy is absorbed.
Down
  1. - Combining substances so that new substances are formed that are not separated by normal chemical means. The new substances have properties different from those of the original substances.
  2. - Temperature at which a solid substance becomes a liquid.
  3. - The amount of matter in a defined volume. (density = mass/volume)
  4. - A chemical substance that produces hydrogen ions in solution and tastes sour.
  5. - The readiness of a substance to produce hydroxide ions.
  6. - Property of a substance relating to how easily it reacts with other substances.
  7. - A characteristic of a substance that describes its potential to change when interacting with other substances (reactivity with air or water, combustibility, flammability).
  8. The ability to produce electricity
  9. The characteristic of being able to attract because of an electrical force
  10. - A type of change in which the form of matter is altered but one substance is not transformed into another.
  11. The characteristic of a slow moving sticky substance
  12. - Measure of the amount of matter in an object.
  13. - A chemical substance that produces hydroxide ions in solution and tastes bitter.
  14. - The characteristic smell of a substance.

28 Clues: The ability to rust do to oxygen • The ability to produce electricity • - The external features of a substance. • - The amount of space an object occupies. • The ability to be hammered or pressed down • - The characteristic smell of a substance. • The ability to be drawn out into thin wires • - Measure of the amount of matter in an object. • ...

Urticaria 2025-09-14

Urticaria crossword puzzle
Across
  1. Potential cause of reaction
  2. Medical term for hives
  3. Deeper swelling with hives
  4. Most common cause of disorder
  5. Skin layer affected
  6. Immune systems reaction
  7. Chemical that causes syptoms of urticaria
  8. The immune cell that releases the histamine
  9. Very severe allergic reaction that can happen with urticaria
  10. Commonly used name for this disorder
  11. Foreign substance that responsible for the allergic response
Down
  1. Very short period of time. Skin recovers quicker.
  2. Redness of the skin
  3. Center of a red hive turns white when pressed
  4. Typically treats disorder
  5. Lasts much longer, usually 6 or more weeks with condition.
  6. Itching sensation
  7. Fluid buildup that causes swelling
  8. Raised,solid, and itchy bump.
  9. A sensation that can be experienced with urticaria

20 Clues: Itching sensation • Redness of the skin • Skin layer affected • Medical term for hives • Immune systems reaction • Typically treats disorder • Deeper swelling with hives • Potential cause of reaction • Most common cause of disorder • Raised,solid, and itchy bump. • Fluid buildup that causes swelling • Commonly used name for this disorder • Chemical that causes syptoms of urticaria • ...

Chemical Reactions 2024-10-01

Chemical Reactions crossword puzzle
Across
  1. Means equal or to make
  2. Reaction where two ionic compounds are replaced
  3. compounds formed after a reaction
  4. Number that indicates how many atoms there are
Down
  1. Reaction where one element is replaced in a compound
  2. Reaction where Carbon Dioxide and Water are produced
  3. Reaction that means to make
  4. elements that will yield a product
  5. Number that shows how many molecules there are
  6. How chemical equations should be finalized or written
  7. Reaction where compound is broken down

11 Clues: Means equal or to make • Reaction that means to make • compounds formed after a reaction • elements that will yield a product • Reaction where compound is broken down • Number that shows how many molecules there are • Number that indicates how many atoms there are • Reaction where two ionic compounds are replaced • Reaction where one element is replaced in a compound • ...

chemistry 2022-06-14

chemistry crossword puzzle
Across
  1. man made substances
  2. substance considering of very large molecules
  3. a substance reacts rapidly with oxygen and gives off heat
  4. atmospheric emission purification
  5. gases gases that trap heat in the atmosphere and warm the planet
  6. acid+alkali-salt+water
  7. a substance used to kill,repel pests
  8. a reaction that gives off heat
Down
  1. change long term shifts in temperatures and weather patterns
  2. a substance made of 2 or more metals
  3. a spray known as weedkiller
  4. deposition any form of percipitation with acidic components
  5. a reaction that absorbs heat
  6. rust is an example of?
  7. reaction reaction where a new substance is formed
  8. workplace hazardous materials information system

16 Clues: man made substances • rust is an example of? • acid+alkali-salt+water • a spray known as weedkiller • a reaction that absorbs heat • a reaction that gives off heat • atmospheric emission purification • a substance made of 2 or more metals • a substance used to kill,repel pests • substance considering of very large molecules • workplace hazardous materials information system • ...

Xander 2022-09-06

Xander crossword puzzle
Across
  1. is the outer mantle of the solid earth
  2. where life operates
  3. base tastes ?
  4. a widely accepted hypothesis that stands the test of time theories are often tested and usually not rejected
  5. what form of energy is the energy of radioactive waves
  6. What form of energy is the energy in the nucleus of an atom?
  7. Acids and bases are important can do their things because most enzymes can do their job only at a certain level of?
  8. what energy is a stored energy
  9. it has a low concentration of hydrorium ions making it essentially neutral
  10. the study of energy
  11. the study of the interactions between life and its physical environment
  12. what form of energy puts something in motion
  13. unit of electricity
  14. These reactions build up bigger molecules from smaller ones
  15. a solution with a ph lower than 7
Down
  1. what form of energy is stored in molecules and chemical
  2. acid tastes ?
  3. what form of energy is the result of flow of electric charge
  4. a substance that forms as a result of a chemical reaction
  5. unit of power
  6. The human body is about 70% of?
  7. little packets of energy
  8. It is the energy that comes from the temperature of the heated substance is called
  9. what reaction build up bigger molecules form smaller ones
  10. is a pure substance
  11. The energy needed to start a chemical reaction is called
  12. unit of heat energy
  13. a substance that consists of two or more elements
  14. what energy is passessed due to motion
  15. The sum of all the biochemical reactions in an organism

30 Clues: acid tastes ? • base tastes ? • unit of power • where life operates • is a pure substance • the study of energy • unit of heat energy • unit of electricity • little packets of energy • what energy is a stored energy • The human body is about 70% of? • a solution with a ph lower than 7 • is the outer mantle of the solid earth • what energy is passessed due to motion • ...

Chemical reaction and equations 2021-08-24

Chemical reaction and equations crossword puzzle
Across
  1. reaction in which heat is evolved
  2. process of rusting of iron
  3. process of removal of hydrogen
  4. mg is the symbol of
  5. substances which take part in a chemical reaction
  6. reaction in which precipitate is formed and separates from the solution
Down
  1. A a solution made in water is known as
  2. type of reaction in digestion of food in our body
  3. reaction in which two or more substances combine to form of single substance
  4. removal of oxygen from a substance

10 Clues: mg is the symbol of • process of rusting of iron • process of removal of hydrogen • reaction in which heat is evolved • removal of oxygen from a substance • A a solution made in water is known as • type of reaction in digestion of food in our body • substances which take part in a chemical reaction • reaction in which precipitate is formed and separates from the solution • ...

Chemical Reaction and Equation 2023-05-07

Chemical Reaction and Equation crossword puzzle
Across
  1. when a metal is attacked by substances around it such as moisture
  2. ____are shown on the left of the arrow
  3. aerial oxidation of fats in food
  4. removal of oxygen
  5. this type of reaction results in releasing of energy
Down
  1. this type of reaction involves absorption of heat
  2. ____ are shown to the right of the arrow
  3. when the total mass of the reactant is equal to the mass of the product the equation is said to be
  4. sign for a chemical change
  5. removal of hydrogen

10 Clues: removal of oxygen • removal of hydrogen • sign for a chemical change • aerial oxidation of fats in food • ____are shown on the left of the arrow • ____ are shown to the right of the arrow • this type of reaction involves absorption of heat • this type of reaction results in releasing of energy • when a metal is attacked by substances around it such as moisture • ...

Chemical Reactions Vocabulary 2025-10-27

Chemical Reactions Vocabulary crossword puzzle
Across
  1. Force of attraction that breaks and reforms in a chemical reaction
  2. Process in which some substances become different substances
  3. Example of a physical change
Down
  1. Balance between opposing changes
  2. Substance produced in a chemical reaction
  3. Substance that starts a chemical reaction
  4. Example of chemical change

7 Clues: Example of chemical change • Example of a physical change • Balance between opposing changes • Substance produced in a chemical reaction • Substance that starts a chemical reaction • Process in which some substances become different substances • Force of attraction that breaks and reforms in a chemical reaction

Chem 2024-09-25

Chem crossword puzzle
Across
  1. is a variant of a chemical element that has the same number of protons but a different number of neutrons in its nucleus. This means isotopes of an element have the same atomic number but different atomic masses
  2. is a measure of the average kinetic energy of the particles in matter. If you heat an object or substance by transferring energy to it, the atoms will move more vigorously, and its temperature will increase.
  3. are regions around the nucleus of an atom where electrons are most likely to be found
  4. kinetic energy, is the mathematical average of the individual kinetic energies of all the particles in a substance or object.
  5. refers to the process by which heat or electricity is transmitted through a substance
  6. of conservation of mass, mass is conserved and can neither be created nor destroyed in a physical change or chemical reaction.
  7. is an ion that has a positive charge, formed when an atom or molecule loses one or more electrons. Since electrons are negatively charged, losing them results in a net positive charge
  8. is the capacity to move, do work, change matter, or produce heat.
  9. energy, is the total kinetic energy possessed by all of the individual particles that make up an object or substance.
  10. Energy, The energy stored within a system due to the positions of its parts
  11. refers to the transfer of heat through the movement of fluids (liquids or gases)
  12. are held together by chemical bonds, which form through the electrical attraction between protons and electrons.
  13. refers to the number of complete waves, or cycles, that pass a given point in a specific amount of time, usually per second
  14. number, the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
  15. reaction, heat is absorbed from the surroundings because the reaction products are at a higher energy level than the reactants.
  16. heat, expressed as j/kg•K. Specific heat varies for different materials.
  17. is energy that transfers from one object to another because of a temperature difference between the objects. Heat flows spontaneously from a warmer object to a cooler object.
  18. is an atom or molecule that has gained or lost one or more electrons, resulting in a net electric charge. If an atom loses electrons, it becomes a positively charged ion (cation), and if it gains electrons, it becomes a negatively charged ion
  19. Potential Energy, A hammer raised by a cam on a turning wheel gains gravitational potential energy. When it drops, potential energy is converted to kinetic energy.
Down
  1. Energy, The energy of an object's motion is called kinetic energy.
  2. reaction, heat is released to the surroundings because the reaction products are at a lower energy level than the reactants.
  3. flow, is the rate at which heat moves from one substance to another. The rate that a substance or a system warms during a chemical reaction can be measured in watts.
  4. electron, in chemistry refers to the outermost electron(s) of an atom that are involved in chemical bonding
  5. is a negatively charged ion
  6. refers to the emission and transmission of energy in the form of waves or particles through space or a medium
  7. refers to the distance between two consecutive peaks or troughs in a wave
  8. potential energy, The energy stored in chemical bonds
  9. configuration, refers to the arrangement of electrons in an atom or molecule
  10. table, is a tabular arrangement of chemical elements organized by increasing atomic number, which is the number of protons in an atom's nucleus
  11. typically refers to the maximum extent of a wave's displacement from its rest position
  12. is a term that describes a property of a substance or object that is large enough to see or measure without magnification, or an observation scale that does not require magnification.
  13. is the study of energy changes that happen during chemical reactions and changes in state.
  14. Potential Energy,

33 Clues: Potential Energy, • is a negatively charged ion • potential energy, The energy stored in chemical bonds • is the capacity to move, do work, change matter, or produce heat. • Energy, The energy of an object's motion is called kinetic energy. • heat, expressed as j/kg•K. Specific heat varies for different materials. • ...

Vocabulary 6B 2017-04-06

Vocabulary 6B crossword puzzle
Across
  1. A group of chemical elements with similar properties. Under standard conditions, they are all odorless, colorless, monatomic gases with very low chemical reactivity.
  2. This occur when a substance combines with another to form a new substance, called synthesis or, alternatively, decomposes into two or more different substances.
  3. The result of a chemical reaction.
  4. A group of elements in the periodic table. They are all in the first column of the periodic table, and they are extremely reactive.
  5. This states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system mass cannot change quantity if it is not added or removed.
Down
  1. An electron in an outer shell of an atom that can participate in forming chemical bonds with other atoms.
  2. The symbolic representation of a chemical reaction in the form of symbols and formulas.
  3. This occur when objects or substances undergo a change that changes the physical form of a composition but not the chemical composition.
  4. A lasting attraction between atoms that enables the formation of chemical compounds.
  5. A way of expressing information about the proportions of atoms that constitute a particular chemical compound, using a single line of chemical element symbols.
  6. A substance that takes part in and undergoes change during a reaction.

11 Clues: The result of a chemical reaction. • A substance that takes part in and undergoes change during a reaction. • A lasting attraction between atoms that enables the formation of chemical compounds. • The symbolic representation of a chemical reaction in the form of symbols and formulas. • ...

Chemistry words 2022-12-12

Chemistry words crossword puzzle
Across
  1. What happens to liquid to turn it into a gas?
  2. What is it called when we have only one type of atom?
  3. what is it called when several substances are jumbled together?
  4. What state of matter can change its shape but not its volume?
  5. what do we call it when liquid turns to a solid?
  6. when a gas cools down it will under go?
  7. What is the term used to describe how much of somthing is there?
  8. Diffusion is where particles move from a high ------------- to a low -------------?
  9. What state of matter can not change shape or volume?
  10. When a chemical reacts with oxygen it is called?
Down
  1. what is the name given to the temperature that liquids turn to gasses?
  2. The name given to describe how much of somthing there is in a set space?
  3. What do we call the substances that are created in a chemical reaction?
  4. What type of reaction releases heat?
  5. What state of matter can change its shape and volume?
  6. The name given when things spread out from high concentrations to low concentrations?
  7. What do we call it when we have 2 or more elements bonded together?
  8. What do we call the substances that react in a chemical reaction?
  9. what is the name given to the temperature that solids turn to liquids?

19 Clues: What type of reaction releases heat? • when a gas cools down it will under go? • What happens to liquid to turn it into a gas? • what do we call it when liquid turns to a solid? • When a chemical reacts with oxygen it is called? • What state of matter can not change shape or volume? • What is it called when we have only one type of atom? • ...

Matter & Energy in Ecosystems 2026-03-19

Matter & Energy in Ecosystems crossword puzzle
Across
  1. a type of atom that makes up molecules such as carbon dioxide and energy storage molecules
  2. a starting substance that is part of a chemical reaction
  3. a type of energy storage molecule
  4. matter that makes up the living and dead organisms in an ecosystem
  5. the tiny pieces that all matter - all the stuff in the world - is made of
  6. all the living and nonliving things interacting in a particular area
  7. matter that makes up the nonliving parts of an ecosystem, such as air, water and rocks
  8. a molecule that organisms can use to release energy, and that is made of carbon, hydrogen, and oxygen atoms
  9. a group of atoms joined together in a particular way
  10. a set of interacting parts forming a complex whole
Down
  1. an organism that gets energy storage molecules by breaking down dead matter
  2. an organism that can make its own energy storage molecules
  3. the chemical reaction between oxygen and glucose that releases energy into cells
  4. the part of a cell where cellular respiration happens
  5. living things, such as plants, animals, and bacteria
  6. the process by which plants and other producers use energy from sunlight to change carbon dioxide and water into oxygen and glucose
  7. an ending substance that is made during a chemical reaction
  8. a closed ecosystem made by humans
  9. a molecule made of carbon and oxygen atoms

19 Clues: a type of energy storage molecule • a closed ecosystem made by humans • a molecule made of carbon and oxygen atoms • a set of interacting parts forming a complex whole • living things, such as plants, animals, and bacteria • a group of atoms joined together in a particular way • the part of a cell where cellular respiration happens • ...

Science 2022-11-04

Science crossword puzzle
Across
  1. the physical energy resulting from electromagnetic radiation, usually observed as it radiates from a source into the surrounding environment.
  2. a substance that is present at the end of a chemical reaction.
  3. a substance that takes part in and undergoes change during a reaction.
  4. a process that leads to the chemical transformation of one set of chemical substances to another.
  5. (chemical formula CO 2)
  6. organisms use sunlight to synthesize foods from carbon dioxide and water.
  7. is the name of the green pigment that plants use to make food during a process called photosynthesis
  8. a plastid that contains chlorophyll and in which photosynthesis takes place.
Down
  1. powerhouse of the cell
  2. an organism deriving its nutritional requirements from complex organic substances.
  3. the main sugar found in your blood. It comes from the food you eat, and is your body's main source of energy.
  4. respiration a series of chemical reactions that break down glucose to produce ATP
  5. the chemical element with the symbol O and atomic number 8.
  6. an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
  7. the source of energy for use and storage at the cellular level.
  8. is the name of the green pigment that plants use to make food during a process called photosynthesis

16 Clues: powerhouse of the cell • (chemical formula CO 2) • the chemical element with the symbol O and atomic number 8. • a substance that is present at the end of a chemical reaction. • the source of energy for use and storage at the cellular level. • a substance that takes part in and undergoes change during a reaction. • ...

"Just for Fun" Chemistry Crossword Puzzle 2020-03-23

"Just for Fun" Chemistry Crossword Puzzle crossword puzzle
Across
  1. The correct name for a compound with the name of NaCl.
  2. A change in which no new substances are formed is called a _____________.
  3. This type of reaction occurs when the product side of an equation consists of oxygen and fuel.
  4. An equation with 2 reactants and 1 product is called.
  5. The number of atoms in Carbon Dioxide.
  6. A chemical __________ occurs when two or more molecules interact with each other causing the molecules to change.
  7. A multivalent compound is a compound in which an element has more than one __________.
  8. The Cl in the abbreviation HOFBRINCL stands for ______.
Down
  1. Gas production is a sign of a _____________.
  2. The law of Conservation of mass states that the total mass of the reactants is always equal to the mass of the _______.
  3. A change in which new substances are formed is called a ___________.
  4. __________ is when two reactants switch places creating two new compounds.
  5. The correct chemical formula for the compound HCO 3- is __________.
  6. A solution with a pH of 3.5 can be named as ______.
  7. The two sides of a chemical equation are separated by an _________.
  8. The reaction between an acid and base produces water and an ionic compound is known as.
  9. One way to identify acids and bases is an _______.
  10. The amount of hydrogen atoms in a water molecule is ______.
  11. Substances written on the right side of an equation.

19 Clues: The number of atoms in Carbon Dioxide. • Gas production is a sign of a _____________. • One way to identify acids and bases is an _______. • A solution with a pH of 3.5 can be named as ______. • Substances written on the right side of an equation. • An equation with 2 reactants and 1 product is called. • The correct name for a compound with the name of NaCl. • ...

Chapter 12 Lesson 2 2025-04-23

Chapter 12 Lesson 2 crossword puzzle
Across
  1. Anything that takes up space
  2. Changes the composition of a substance
  3. Something that is observed when changing the composition of a substance
  4. Evaporation occurs during this
  5. When a substance gets hotter or colder during a reaction
  6. Found by dividing mass by volume
Down
  1. Something that can be observed without changing the substance
  2. A change in appearance
  3. Law saying mass can not be creator or destroyed
  4. The amount of space an object takes up
  5. A sign of a chemical change (like the potato lab!)
  6. Chemical reaction that produces heat and light
  7. Liquid turning into solid
  8. Two or more substances combined
  9. Solid turning into liquid
  10. The amount of matter in an object

16 Clues: A change in appearance • Liquid turning into solid • Solid turning into liquid • Anything that takes up space • Evaporation occurs during this • Two or more substances combined • Found by dividing mass by volume • The amount of matter in an object • The amount of space an object takes up • Changes the composition of a substance • Chemical reaction that produces heat and light • ...

Bioenergetics 2016-01-13

Bioenergetics crossword puzzle
Across
  1. chemical used to store glucose in animals
  2. limiting factor of photosynthesis
  3. NH3
  4. NH2
  5. fats and oils
  6. The process by which plants convert carbon dioxide and water into glucose and oxygen
  7. gas used during aerobic respiration
  8. reaction that takes in energy
  9. chemical used to store glucose in plants
Down
  1. reaction that gives out energy
  2. substance that creates a burning sensation during exercise
  3. lipid created from one glycerol and three fatty acids
  4. lipid created from one glycerol, two fatty acids and a phosphate group
  5. toxic substance removed from body in urine
  6. how plants absorb nitrogen from soil.
  7. the reason athletes have to keep breathing deeply after ending exercise.
  8. polysaccharide used to create cell walls

17 Clues: NH3 • NH2 • fats and oils • reaction that takes in energy • reaction that gives out energy • limiting factor of photosynthesis • gas used during aerobic respiration • how plants absorb nitrogen from soil. • polysaccharide used to create cell walls • chemical used to store glucose in plants • chemical used to store glucose in animals • toxic substance removed from body in urine • ...

Types of Chemical reaction-Fizan 10T 2025-04-29

Types of Chemical reaction-Fizan 10T crossword puzzle
Across
  1. The type of reaction in which one substance gets oxidized while the other gets reduced
  2. The type of reaction in which a single substance decomposes to form two or more substances
  3. The process of loss of oxygen or gain of hydrogen
  4. The type of reaction in which two atoms or two different groups of atoms are mutually exchanged
  5. The process in which fats and oils are oxidized so that they become rancid and as a result their taste and smell change.
  6. This takes place whenever a chemical change occurs
  7. The type of reaction in which two or more substances combine together to form a single substance
Down
  1. Any reaction that produces a precipitate
  2. The process in which the surface of a metal is attacked by substances around it such as moisture, acids, etc
  3. The reaction that requires energy in form of heat, light or electricity
  4. The process of gain of oxygen or loss of hydrogen
  5. The reaction in which heat is released along with formation of products
  6. The type of decomposition reaction which is carried out by light
  7. The type of reaction in which one element displaces the other
  8. The type of decomposition reaction which is carried out by electric current
  9. The type of decomposition reaction which is carried out by heating

16 Clues: Any reaction that produces a precipitate • The process of gain of oxygen or loss of hydrogen • The process of loss of oxygen or gain of hydrogen • This takes place whenever a chemical change occurs • The type of reaction in which one element displaces the other • The type of decomposition reaction which is carried out by light • ...

Photosynthesis & Cellular Respiration 2022-11-29

Photosynthesis & Cellular Respiration crossword puzzle
Across
  1. The process by which plants make sugar from sunlight.
  2. the organelle where cellular respiration happens
  3. a reactant for cellular respiration and a product in photosynthesis.
  4. a sugar produced by photosynthesis that is used as an energy source for cellular respiration.
  5. a process that leads to the chemical transformation of one set of chemical substances to another.
  6. elements (or molecules) present when the reaction begins.
Down
  1. matter is neither created or destroyed in chemical reactions
  2. the green pigment in plant cells that absorbs light
  3. the molecule that cells use for storing the energy made during cellular respiration.
  4. a reactant for photosynthesis and a product in cellular respiration.
  5. The process of cells breaking down food to provide energy.
  6. elements (or molecules) present when the reaction is complete.
  7. the organelle in plant cells where photosynthesis happens
  8. this is the foundation of photosynthesis; it is captured by plants and algae and converted into chemical energy (ATP).

14 Clues: the organelle where cellular respiration happens • the green pigment in plant cells that absorbs light • The process by which plants make sugar from sunlight. • the organelle in plant cells where photosynthesis happens • elements (or molecules) present when the reaction begins. • The process of cells breaking down food to provide energy. • ...

Types of reactions and energy 2026-03-24

Types of reactions and energy crossword puzzle
Across
  1. a reaction that absorbs heat energy from its surroundings
  2. the substances formed as a result of a chemical reaction
  3. a reaction that releases energy
  4. the energy an object has due to motion
Down
  1. electromagnetic radiation that is visible to the human eye
  2. the substances at the beginning of a chemical reaction
  3. the internal energy produced by the motion vibration and collision of atoms
  4. the energy stored the structural bonds of atoms and molecules

8 Clues: a reaction that releases energy • the energy an object has due to motion • the substances at the beginning of a chemical reaction • the substances formed as a result of a chemical reaction • a reaction that absorbs heat energy from its surroundings • electromagnetic radiation that is visible to the human eye • ...

Joshua Joyner's crossword 2013-05-09

Joshua Joyner's crossword crossword puzzle
Across
  1. The simplest unit of a chemical compound
  2. The name for a gas which absorbs infrared radiation
  3. A reaction that takes in heat
  4. The scientific name for burning
  5. The result of corrosion
  6. The term for the three things needed for a fir to burn
  7. An electrically charged atom
  8. A reaction that gives off heat
  9. The basic unit of a chemical element
Down
  1. A gas that takes up 21% of the air
  2. A method to stop rusting
  3. When metals react with air and water
  4. A gas given off when burning
  5. A gas that takes up 78% of the air
  6. Multiple elements not chemically joined together
  7. Multiple elements chemically joined together

16 Clues: The result of corrosion • A method to stop rusting • A gas given off when burning • An electrically charged atom • A reaction that takes in heat • A reaction that gives off heat • The scientific name for burning • A gas that takes up 21% of the air • A gas that takes up 78% of the air • When metals react with air and water • The basic unit of a chemical element • ...

Photosynthesis 2026-01-08

Photosynthesis crossword puzzle
Across
  1. — Reactant taken in by roots for photosynthesis.
  2. — What plants capture from light to drive reactions.
  3. — Sugar produced as food for the plant.
  4. — Model showing reactants and products with symbols.
  5. — Gas released during photosynthesis.
  6. — Stored form of sugar in many plants.
  7. — Energy source that powers photosynthesis.
  8. — Element in carbon dioxide that becomes part of sugar.
  9. — Organelle where photosynthesis happens.
Down
  1. — Green pigment that absorbs light energy.
  2. — Physical “stuff” that is used and rearranged in reactions.
  3. — Starting substances in a chemical reaction.
  4. — Process that makes sugar using light, water, and carbon dioxide.
  5. — Main plant organ where most photosynthesis happens.
  6. — Leaf openings that control gas exchange.
  7. — Substances formed in a chemical reaction.

16 Clues: — Gas released during photosynthesis. • — Stored form of sugar in many plants. • — Sugar produced as food for the plant. • — Organelle where photosynthesis happens. • — Green pigment that absorbs light energy. • — Leaf openings that control gas exchange. • — Energy source that powers photosynthesis. • — Substances formed in a chemical reaction. • ...

Vocabulary 2020-09-07

Vocabulary crossword puzzle
Across
  1. substance that is presented at the start of a chemical reaction
  2. horizontal rows of the periodic table
  3. the amount of space that a substance or object occupies
  4. has components in which proportions vary through out the sample
  5. the species formed from chemical reaction
  6. solid, liquid, or gas that has the same proportions of its components through out the samples
Down
  1. process that leads to the chemical transformation of 1 set of chemical substances to another
  2. homogeneous state of a system with no visible boundary separating it into parts
  3. substance composed of identical molecules consisting of atoms of 2 or more chemical elements
  4. a material made up of 2 or more different substances which are physical combined
  5. particles are packed closely together and are not free to move around
  6. a measure of the amount of matter in a substance or an object
  7. can be measured or observed without changing composition of matter
  8. a substance that flows freely but is a constant volume
  9. state of matter that has no fixed shape and no fixed volume

15 Clues: horizontal rows of the periodic table • the species formed from chemical reaction • a substance that flows freely but is a constant volume • the amount of space that a substance or object occupies • state of matter that has no fixed shape and no fixed volume • a measure of the amount of matter in a substance or an object • ...

Chemical Reactions Review 2026-01-12

Chemical Reactions Review crossword puzzle
Across
  1. A reaction where one element replaces another in a compound
  2. Substances formed in a reaction
  3. Two or more substances combine into one
  4. The number in front of a chemical formula
  5. Bubbles or odor are signs of this
  6. A reaction that absorbs heat
Down
  1. A reaction that releases heat
  2. Two compounds swap parts
  3. One compound breaking apart
  4. The small number written below an element symbol
  5. Starting substances in a reaction

11 Clues: Two compounds swap parts • One compound breaking apart • A reaction that absorbs heat • A reaction that releases heat • Substances formed in a reaction • Starting substances in a reaction • Bubbles or odor are signs of this • Two or more substances combine into one • The number in front of a chemical formula • The small number written below an element symbol • ...

Chapter 12: Chemistry 2013-01-29

Chapter 12: Chemistry crossword puzzle
Across
  1. Chemical reaction that combines a substance with oxygen
  2. Contains two or more of the same element (2 words)
  3. Occupies space
  4. Change in chemical composition (2 words)
  5. Inorganic chemistry may contain
  6. Neutralizes acids or raises the pH of hair products
  7. Oil-loving
  8. Composed of hydrogen and nitrogen
  9. Combination of two or more atoms
Down
  1. Contains two or more of different elements in definite proportions (2 words)
  2. Simplest form of chemical matter
  3. Sweet, colourless oily substance
  4. Change in the form of physical properties (2 words)
  5. Water-loving
  6. Liquid, __, and solid are the states of matter
  7. Organic chemistry contains
  8. Smallest chemical compound

17 Clues: Oil-loving • Water-loving • Occupies space • Organic chemistry contains • Smallest chemical compound • Inorganic chemistry may contain • Simplest form of chemical matter • Sweet, colourless oily substance • Combination of two or more atoms • Composed of hydrogen and nitrogen • Change in chemical composition (2 words) • Liquid, __, and solid are the states of matter • ...

Behavior of Matter 2020-11-11

Behavior of Matter crossword puzzle
Across
  1. a type of chemical reaction that absorbs energy to break bonds, getting colder in the process
  2. a characteristic of matter related to the current state of matter
  3. when two more substances cause a chemical change to occur
  4. a law that states that matter can never be created or destroyed; only changed
  5. a change in matter that DOES change the chemical composition of matter; physical properties are usually changed too
  6. the resistance a fluid has to flowing
Down
  1. a type of chemical reaction that releases stored energy when bonds are created, getting hotter in the process
  2. a measurement of the average amount of kinetic energy in a substance
  3. a change in matter does NOT change the chemical composition of matter; only physical properties are changed
  4. a theory that explains what happens to matter when the amount of energy is increased or decreased
  5. the amount of space matter takes up
  6. a characteristic of matter that is related to its ability to change its chemical composition
  7. a measurement of how compact the molecules in matter are
  8. the constant pushing force exerted by one thing on another

14 Clues: the amount of space matter takes up • the resistance a fluid has to flowing • a measurement of how compact the molecules in matter are • when two more substances cause a chemical change to occur • the constant pushing force exerted by one thing on another • a characteristic of matter related to the current state of matter • ...

Chapter Review 9-11 2018-06-17

Chapter Review 9-11 crossword puzzle
Across
  1. equation that does not indicate the relative amounts of the reactants and products
  2. 22.4 L
  3. CN-
  4. compound that contains one or more hydrogen atoms and produces hydrogen ions when dissolved in water
  5. relative amounts of the elements in a compound are expressed as __ composition
  6. chemical change in which one element replaces a second element in a compound
  7. chemical change in which a single compound breaks down into two or more simpler products
  8. species present in a substance, usually atoms, molecules, or formula units
  9. atomic mass of an element expressed in grams
  10. chemical change in which an element or compound reacts with oxygen, producing energy in the form of heat and light
  11. temperature of 0C and a pressure of 101.3kPa
  12. ion that is composed of more than one atom and behaves as unit and carries a charge
  13. small whole numbers that are placed in front of the formulas in an equation in order to balance it
Down
  1. If the metallic element in a binary ionic compound has more than one common ionic charge, a ___ numeral must be included in the cation name
  2. lists in metals in order of decreasing reactivity
  3. equation in which each side of the equation has the sane number of atoms of each element and mass is conserved
  4. chemical change in which two or more substances react to form a single new substance
  5. consist of single atom with a positive or negative charge resulting from the loss or gain of one or more valence electrons
  6. chemical change involving an exchange of positive ions between two compounds
  7. ionic compound that produces hydroxide ions when dissolved in water
  8. SI unit for measuring he amount of substance
  9. The charges of the cations of many transition metal ions must be determined from the number of ___ lost
  10. substance that speeds up the reaction but is not used up in the reaction
  11. representation of a chemical reaction
  12. number of representative particles in a mole
  13. composed of two elements
  14. formula of a compound that gives the lowest whole-number ratio of the atoms or moles of the elements in a compound

27 Clues: CN- • 22.4 L • composed of two elements • representation of a chemical reaction • SI unit for measuring he amount of substance • number of representative particles in a mole • atomic mass of an element expressed in grams • temperature of 0C and a pressure of 101.3kPa • lists in metals in order of decreasing reactivity • ...

vocab 101 2021-01-25

vocab 101 crossword puzzle
Across
  1. Chemical reaction in which thermal energy is released.
  2. A chemical substance that produces hydroxide ions in solution and tastes bitter.
  3. Combining substances so that new substances are formed that are not separated by normal chemical means. The new substances have properties different from those of the original substances.
  4. The characteristic of being able to attract because of an electrical force
  5. The characteristic of a slow moving sticky substance
  6. Property of a substance defining how easily it ignites and burns.
  7. A type of change in which the form of matter is altered but one substance is not transformed into another.
  8. The ability to be drawn out into thin wires
  9. Measure of acidity or basicity of a substance.
  10. The characteristic smell of a substance.
  11. The readiness of a substance to produce hydroxide ions.
  12. Temperature at which a solid substance becomes a liquid.
  13. A measurable characteristic of matter not involving interactions with other substances.
Down
  1. The amount of space an object occupies.
  2. The amount of matter in a defined volume.
  3. The ability to be hammered or pressed down
  4. Measure of the amount of matter in an object.
  5. A characteristic of a substance that describes its potential to change when interacting with other substances.
  6. Property of a substance relating to how easily it reacts with other substances.
  7. The ability to produce electricity
  8. A solid substance that forms from a chemical reaction that takes place in a liquid solution.
  9. Capacity of an acid to react with a base, measured by the number of hydrogen atoms that can be replaced by a base.
  10. A chemical substance that produces hydrogen ions in solution and tastes sour.
  11. Temperature at which a liquid substance becomes a gas.
  12. Chemical reaction in which thermal energy is absorbed.
  13. The readiness of a substance to produce hydrogen ions.
  14. Process where one or more substances are altered into new and different substances.
  15. The ability to rust do to oxygen
  16. The external features of a substance.

29 Clues: The ability to rust do to oxygen • The ability to produce electricity • The external features of a substance. • The amount of space an object occupies. • The characteristic smell of a substance. • The amount of matter in a defined volume. • The ability to be hammered or pressed down • The ability to be drawn out into thin wires • ...

AP Biology Final 2023-06-09

AP Biology Final crossword puzzle
Across
  1. The gain of electrons by a substance involved in a redox reaction
  2. Anaerobic process in which glucose is broken down
  3. The stored energy that matter possesses as a result of its position or internal structure.
  4. The ability to do work
  5. Process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen, sugars and starches
  6. Flattened membrane sacs inside the chloroplast used to convert light energy to chemical energy.
  7. Heat energy
  8. source of electrons as "reducing power" that can be passed along to an electron receptor, reducing it. provides electrons for photosynthesis
  9. A catabolic process that makes a limited amount of ATP from glucose without an electron transport chain or oxygen and that produces ethyl alcohol or lactic acid.
  10. Process in which organism builds up or breaks down materials.
Down
  1. The distance between the crests of electromagnetic waves
  2. Second stage of photosynthesis in which energy from ATP and NADPH is used to make sugars
  3. Potential energy available for release in a chemical reaction
  4. The portion of the electromagnetic spectrum that can be detected as various colors by the human eye
  5. Organelles that capture the energy from sunlight and convert it into chemical energy during photosynthesis
  6. Protein structure in cell mitochondria that uses energy from H+ ions to convert ADP to ATP by adding a phosphate group
  7. An energy-carrying coenzyme produced by glycolysis and the Krebs cycle.
  8. coenzyme present in all cells that helps enzymes transfer electrons during redox reactions of metabolism
  9. Main energy source that cells use for most of their work
  10. A chemical reaction that involves the loss of an electron.
  11. A discrete quantity of light energy that behaves like it is a particle
  12. The energy of motion
  13. Fluid of the chloroplast surrounding the thylakoid membrane; involved in the synthesis of organic molecules from carbon dioxide and water
  14. Proteins that speed up chemical reactions
  15. Respiration in which oxygen is consumed and glucose is broken down entirely

25 Clues: Heat energy • The energy of motion • The ability to do work • Proteins that speed up chemical reactions • Anaerobic process in which glucose is broken down • The distance between the crests of electromagnetic waves • Main energy source that cells use for most of their work • A chemical reaction that involves the loss of an electron. • ...

chem 2023-06-02

chem crossword puzzle
Across
  1. electrical energy to chemical energy
  2. element + compound -> element + compound
  3. metals group 1
  4. same formula but different structure, name, and properties
  5. coefficients
  6. con is con rates equal
  7. atoms in = atoms out
  8. chemical that dissolves in water and breaks up into ions. One of the ions being H+
  9. all chemical reactions have mass in = mass out
  10. nuclear reaction that does not look like the others
  11. B went downstairs to get Te without Al
  12. dissolved in water
  13. heat is absorbed
  14. speed up reaction
  15. atomic mass a weighted average of all naturally occurring isotopes of an element
  16. a chemical, that when dissolved in water, breaks up into ions. One of which being (OH)-
  17. hydrogen and carbon only
  18. volume doesn't change
  19. group 17
  20. heat is released
  21. H+
  22. chemical energy to electrical energy
  23. heat goes from where it is to where it isnt
  24. same element but different structure, therefore different properties
Down
  1. when one element becomes a different element
  2. loss of electrons, table j
  3. several reactants -> one product
  4. a way to separate a mixture based on different boiling points
  5. in this reaction, mass converts into energy
  6. metals group 2
  7. #90 or bigger + neutrons -> smaller isotopes + more neutrons
  8. solid to gas
  9. randomness
  10. lab technique to find the molarity of an acid or a base
  11. electrode where oxidation happens
  12. all dissolved, on the curve (table G), at equilibrium
  13. acids, bases, soluble salts
  14. reduced
  15. several things -> 1 thing
  16. 2 ionic compounds-> 2 ionic compounds
  17. the amount of gas in the container is constant
  18. one thing -> many things
  19. radioisotope-> radiation + more stable isotope
  20. average kinetic energy
  21. group 18, most stable because valence electron shell is full
  22. describes the behavior of gases
  23. 2 or more elements combined in a fixed proportion
  24. high mp + bp, diamond, graphite, and compounds with Si
  25. same element but different mass because of a different number of neutrons
  26. cannot be broken down by chemical changes

50 Clues: H+ • reduced • group 17 • randomness • solid to gas • coefficients • metals group 1 • metals group 2 • heat is absorbed • heat is released • speed up reaction • dissolved in water • atoms in = atoms out • volume doesn't change • con is con rates equal • average kinetic energy • one thing -> many things • hydrogen and carbon only • several things -> 1 thing • loss of electrons, table j • ...

Chemical reactions 2020-12-22

Chemical reactions crossword puzzle
Across
  1. Double displacement reaction is also known as..............
  2. Addition of oxygen
  3. Corrosion of iron is also known as...........
  4. Addition of hydrogen
  5. Reaction in which energy is released.
Down
  1. Starting materials/substrates in a chemical reaction.
  2. Reaction in which energy is absorbed.
  3. Respiration is a .............reaction.
  4. Packaged food items are flushed with this gas.
  5. Reaction in which both Reduction and oxidation takes place simultaneously.

10 Clues: Addition of oxygen • Addition of hydrogen • Reaction in which energy is absorbed. • Reaction in which energy is released. • Respiration is a .............reaction. • Corrosion of iron is also known as........... • Packaged food items are flushed with this gas. • Starting materials/substrates in a chemical reaction. • ...

Ch. 13 Wyatt Miller 2020-10-14

Ch. 13 Wyatt Miller crossword puzzle
Across
  1. If i leave a fish out in the dirt on a sunny day what will it do
  2. "Massive _____ molecules react slower
  3. The measure of how warm or cold something is
  4. A substance that helps to lower the amount of activation energy to speed a reaction up
  5. If changed the equilibrium shifts to oppose the change until new equilibrium is achieved
Down
  1. Reactions are quicker with higher _______
  2. What is on the left side of the chemical reaction progression arrow
  3. When a reaction and its reverse act at the same rate
  4. What type of reaction absorbs energy
  5. What is on the right side of the chemical reaction progression arrow

10 Clues: What type of reaction absorbs energy • "Massive _____ molecules react slower • Reactions are quicker with higher _______ • The measure of how warm or cold something is • When a reaction and its reverse act at the same rate • If i leave a fish out in the dirt on a sunny day what will it do • What is on the left side of the chemical reaction progression arrow • ...

Chapter 13- Kamryn Merrill 2020-10-18

Chapter 13- Kamryn Merrill crossword puzzle
Across
  1. when there is a net absorbtion of energy
  2. As the temperature of a reaction is increased, the rate of the reaction
  3. how quickly the concentration of reactant decreases and how quickly the concentration of products increases
  4. amount of energy required to pull two bonded atoms apart
  5. during a ______ reaction one or more new compounds are formed
Down
  1. what type of chemical reaction is this:A+B→AB
  2. When there is a net release of energy
  3. acids and bases ionize completely in water
  4. The minimum amount of energy required to to cause a reaction to occur.
  5. acids and bases do not ionize completely in water

10 Clues: When there is a net release of energy • when there is a net absorbtion of energy • acids and bases ionize completely in water • what type of chemical reaction is this:A+B→AB • acids and bases do not ionize completely in water • amount of energy required to pull two bonded atoms apart • during a ______ reaction one or more new compounds are formed • ...

Cell Chemistry 2013-04-15

Cell Chemistry crossword puzzle
Across
  1. This speeds up chemical reaction
  2. Synthesize sugars or other substances by means of photosynthesis.
  3. C6H12O6
  4. that part of the energy in a substance that can be released by a chemical reaction.
  5. A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
  6. The capacity for work.
  7. reproduction without the fusion of gametes.
  8. The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.
  9. Get, acquire, or secure (something)
  10. A compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.
  11. it is a measure to determine the acidity or alkalinity of a solution or a substance.
  12. O2
  13. A carboxylic acid consisting of a hydrocarbon chain and a terminal carboxyl group, esp. any of those occurring as esters in fats and oils.
  14. Rapid chemical combination of a substance with oxygen, producing heat and light.
  15. A material made up of two or more parts or elements.
  16. A simple organic compound containing both a carboxyl and an amino group.
  17. A state in which opposing forces or influences are balanced.
Down
  1. Take in or soak up (energy, or a liquid or other substance) by chemical or physical action, typically gradually.
  2. In photometry, luminous energy is the perceived energy of light. This is sometimes also called the quantity of light..
  3. A substance that provides nourishment essential for growth and the maintenance of life.
  4. The level of acid in substances such as water, soil, or wine.
  5. transport of a substance across a cell membrane by diffusion; expenditure of energy is not required.
  6. A process that involves rearrangement of the molecular or ionic structure of a substance
  7. The movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
  8. is a number of actions of which each has a certain energy type (centrifugal, electro-magnetic etc'), and is converting to a different type.
  9. Abbreviated for "Adenosine triphosphate."
  10. Abbreviated to "Deoxyribonucleic acid"
  11. Shaped like a sphere.
  12. A green pigment, present in all green plants and in cyanobacteria
  13. A sweet crystalline substance obtained from various plants, esp. sugar cane and sugar beet, consisting essentially of sucrose.
  14. The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms; a group of like or different atoms held together by chemical forces.
  15. Become incorporated into a liquid so as to form a solution
  16. The tendency of molecules of a solvent to pass through a semipermeable membrane from a less concentrated solution into a more concentratration.
  17. enter

34 Clues: O2 • enter • C6H12O6 • Shaped like a sphere. • The capacity for work. • This speeds up chemical reaction • Get, acquire, or secure (something) • Abbreviated to "Deoxyribonucleic acid" • Abbreviated for "Adenosine triphosphate." • reproduction without the fusion of gametes. • A material made up of two or more parts or elements. • ...

Chemical Bonds and Reactions 2023-10-17

Chemical Bonds and Reactions crossword puzzle
Across
  1. The bond formed when hydrogen atoms are attracted to an electronegative atom (e.g., oxygen) in another molecule.
  2. This type of bond forms when atoms share electrons.
  3. Which type of bond involves the transfer of electrons from one atom to another?
  4. The opposite of an acid, a substance with a pH greater than 7 that tastes bitter.
  5. The minimum energy required for a chemical reaction to occur.
Down
  1. A state where the rates of the forward and reverse reactions are equal, resulting in no net change in the concentration of products and reactants.
  2. A chemical reaction that absorbs heat from its surroundings, making it feel cold.
  3. What is the attraction between molecules of the same substance, like water molecules sticking to each other?
  4. A chemical reaction that releases heat into its surroundings, making it feel hot.
  5. What subatomic particle carries a negative charge and orbits the nucleus of an atom?
  6. Substances that speed up chemical reactions without being consumed in the process.
  7. Biological molecules that act as catalysts in living organisms.
  8. This substance has a pH value less than 7 and tastes sour.
  9. What is the smallest unit of an element that retains its properties?

14 Clues: This type of bond forms when atoms share electrons. • This substance has a pH value less than 7 and tastes sour. • The minimum energy required for a chemical reaction to occur. • Biological molecules that act as catalysts in living organisms. • What is the smallest unit of an element that retains its properties? • ...

Science 2022-11-04

Science crossword puzzle
Across
  1. the physical energy resulting from electromagnetic radiation, usually observed as it radiates from a source into the surrounding environment.
  2. a substance that is present at the end of a chemical reaction.
  3. a substance that takes part in and undergoes change during a reaction.
  4. a process that leads to the chemical transformation of one set of chemical substances to another.
  5. (chemical formula CO 2)
  6. organisms use sunlight to synthesize foods from carbon dioxide and water.
  7. is the name of the green pigment that plants use to make food during a process called photosynthesis
  8. a plastid that contains chlorophyll and in which photosynthesis takes place.
Down
  1. powerhouse of the cell
  2. an organism deriving its nutritional requirements from complex organic substances.
  3. the main sugar found in your blood. It comes from the food you eat, and is your body's main source of energy.
  4. respiration a series of chemical reactions that break down glucose to produce ATP
  5. the chemical element with the symbol O and atomic number 8.
  6. an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
  7. the source of energy for use and storage at the cellular level.
  8. is the name of the green pigment that plants use to make food during a process called photosynthesis

16 Clues: powerhouse of the cell • (chemical formula CO 2) • the chemical element with the symbol O and atomic number 8. • a substance that is present at the end of a chemical reaction. • the source of energy for use and storage at the cellular level. • a substance that takes part in and undergoes change during a reaction. • ...

Matter & Energy 2023-10-16

Matter & Energy crossword puzzle
Across
  1. the insoluble product of a reaction between two aqueous solutions
  2. drawing of atoms and/or molecules frozen in time as a solid, liquid, or gas and as an element or compound
  3. separation of a dissolved solid from a liquid by heating and evaporating the liquid
  4. describes the way a substance will react or not react in a given situation
  5. a trait that describes the way something looks, feels, or smells or how much of a substance there is
  6. a mixture in which the particles are uniformly mixed, looks the same throughout
  7. phase of matter that has no definite shape but has a definite volume
  8. separating two liquids based on their boiling point
  9. a reaction in which the composition of a substance is changed
  10. phase of matter with definite shape and volume
Down
  1. a pure substance composed of two or more elements that are chemically combined in a deffinite proportion
  2. a mixture in which the particles are not uniformly mixed, has layers
  3. separation of liquids based on polarity
  4. a molecule with two identical elements
  5. reaction that releases heat, heat exits the system
  6. phase of matter without a definite shape or volume
  7. anything with mass and volume
  8. a change that does not alter the chemical properties of a substance
  9. separation of a liquid and a solid based on particle size
  10. a substance that cannot be broken down by chemical means, found on the periodic table
  11. reaction that absorbs heat, heat enters the reaction
  12. substances physically combined in variable proportions

22 Clues: anything with mass and volume • a molecule with two identical elements • separation of liquids based on polarity • phase of matter with definite shape and volume • reaction that releases heat, heat exits the system • phase of matter without a definite shape or volume • separating two liquids based on their boiling point • ...

vocabulary chemistry crossword puzzle 2021-01-25

vocabulary chemistry crossword puzzle crossword puzzle
Across
  1. The characteristic of being able to attract because of an electrical force
  2. A chemical substance that produces hydrogen ions in solution and tastes sour.
  3. A solid substance that forms from a chemical reaction that takes place in a liquid solution.
  4. A measurable characteristic (size, shape, or state ) of matter not involving interactions with other substances (as color, hardness, boiling point)
  5. the amount of matter in a defined volume (density=mass/volume)
  6. Process where one or more substances are altered into new and different substances.
  7. Temperature at which a liquid substance becomes a gas.
  8. The ability to rust do to oxygen
  9. The readiness of a substance to produce hydrogen ions.
  10. Temperature at which a solid substance becomes a liquid.
  11. Capacity of an acid to react with a base, measured by the number of hydrogen atoms that can be replaced by a base.
  12. The readiness of a substance to produce hydroxide ions.
  13. the amount of space an object occupies
  14. Combining substances so that new substances are formed that are not separated by normal chemical means. The new substances have properties different from those of the original substances.
  15. Chemical reaction in which thermal energy is released.
  16. The characteristic of a slow moving sticky substance
  17. Property of a substance defining how easily it ignites and burns.
Down
  1. The ability to be hammered or pressed down
  2. A chemical substance that produces hydroxide ions in solution and tastes bitter.
  3. Measure of acidity or basicity of a substance.
  4. measure of the amount of matter in an object
  5. A characteristic of a substance that describes its potential to change when interacting with other substances (reactivity with air or water, combustibility, flammability)
  6. The ability to produce electricity
  7. A type of change in which the form of matter is altered but one substance is not transformed into another.
  8. The external features of a substance.
  9. Chemical reaction in which thermal energy is absorbed.
  10. The characteristic smell of a substance.
  11. The ability to be drawn out into thin wires
  12. Property of a substance relating to how easily it reacts with other substances.

29 Clues: The ability to rust do to oxygen • The ability to produce electricity • The external features of a substance. • the amount of space an object occupies • The characteristic smell of a substance. • The ability to be hammered or pressed down • The ability to be drawn out into thin wires • measure of the amount of matter in an object • ...

Rate of Reaction 2017-06-28

Rate of Reaction crossword puzzle
Across
  1. The ____________ the line on a graph, the faster the rate of reaction
  2. You can find out the rate of a reaction by how quickly a ___________ is made
  3. The rate of reaction can be measure by using a balance to weigh the change in _____
  4. Reactions are always fastest at the ________ because there are more reactants available to react
Down
  1. The line on a rate of reaction graph will eventually _________ out to show the reaction has stopped
  2. You can find out the rate of a reaction by how quickly a reactant is _______ up
  3. Eventually a chemical reaction will stop because one of the ___________ will have been used up
  4. A ______ syringe is used to measure the volume of gas produced in a set amount of time
  5. The rate of a chemical reaction is how _______ the reactants are changed into products
  6. To calculate the _____ of a reaction you must divide the mass of product formed by the time taken to form it

10 Clues: The ____________ the line on a graph, the faster the rate of reaction • You can find out the rate of a reaction by how quickly a ___________ is made • You can find out the rate of a reaction by how quickly a reactant is _______ up • The rate of reaction can be measure by using a balance to weigh the change in _____ • ...

Chemical Properties 2021-08-14

Chemical Properties crossword puzzle
Across
  1. this kind of change happens when a new substance is created.
  2. an insoluble solid that emerges from a liquid solution.
  3. when an atom, molecule, or ion loses one or more electrons in a chemical reaction.
  4. a thin layer of corrosion that forms over certain metals as their outermost layers undergo chemical reactions.
  5. the quality of an object or substance with respect to light reflected by the object.
Down
  1. the impetus for which a chemical substance undergoes a chemical reaction, either by itself or with other materials.
  2. at this point a liquid at a specific temperature boils and turns into vapor.
  3. the ability of a chemical to burn or ignite, causing fire or combustion.
  4. at this point a substance will melt at this specific temperature.
  5. the degree of compactness of a substance.
  6. any substance that has mass and takes up space while having volume.
  7. this kind of change only changes the form of a substance.
  8. the amount of matter or substance that makes up and object.

13 Clues: the degree of compactness of a substance. • an insoluble solid that emerges from a liquid solution. • this kind of change only changes the form of a substance. • the amount of matter or substance that makes up and object. • this kind of change happens when a new substance is created. • at this point a substance will melt at this specific temperature. • ...

Chemical Equations 2021-03-15

Chemical Equations crossword puzzle
Across
  1. a law of matter that states that creating or destroying atomic particles is essentially impossible
  2. a model of a chemical reaction which shows the formulas of the reactants and products
  3. type of bond where electrons are shared
  4. type of change that doesn't alter the atomic arrangement of a substance
Down
  1. a substance that are created after a chemical reaction
  2. a group of symbols showing the elements that make up a substance
  3. type of bond where electrons are taken from 1 atom
  4. type of change where a new substance is created
  5. a substance you start with before a chemical reaction

9 Clues: type of bond where electrons are shared • type of change where a new substance is created • type of bond where electrons are taken from 1 atom • a substance you start with before a chemical reaction • a substance that are created after a chemical reaction • a group of symbols showing the elements that make up a substance • ...

Science 2024-07-01

Science crossword puzzle
Across
  1. lens concave lens are also known as
  2. diameter of the reflecting surface is known as
  3. amalyse enzymes present in salaiva
  4. reaction reaction in which heat is released along with the formation of products is called which reaction
  5. breakdown of pyruvate to give carbon doxide water and energy takes place in
  6. which of material be cannot to make lens
  7. oxide when a magnesium ribbon is burnt in oxygen it gets converted into what
Down
  1. the SI unit of a power a lens is
  2. the kidneys in human beings are a part of the system for
  3. reaction reaction in which energy is absorbed is known
  4. what can niether be destroyed nor be created in a chemical reaction
  5. balloon like structure present in lungs
  6. what is responsible for transportation of water
  7. Reaction Fe2O3+2Al → Al2O3+2Fe
  8. mirror the spherical mirror whose reflecting surface is curved outwards

15 Clues: Reaction Fe2O3+2Al → Al2O3+2Fe • the SI unit of a power a lens is • amalyse enzymes present in salaiva • lens concave lens are also known as • balloon like structure present in lungs • which of material be cannot to make lens • diameter of the reflecting surface is known as • what is responsible for transportation of water • ...

Science 2024-07-01

Science crossword puzzle
Across
  1. oxide when a magnesium ribbon is burnt in oxygen it gets converted into what
  2. mirror the spherical mirror whose reflecting surface is curved outwards
  3. diameter of the reflecting surface is known as
  4. reaction reaction in which energy is absorbed is known
  5. lens concave lens are also known as
  6. amalyse enzymes present in salaiva
  7. breakdown of pyruvate to give carbon doxide water and energy takes place in
  8. the SI unit of a power a lens is
Down
  1. what is responsible for transportation of water
  2. the kidneys in human beings are a part of the system for
  3. balloon like structure present in lungs
  4. reaction reaction in which heat is released along with the formation of products is called which reaction
  5. what can niether be destroyed nor be created in a chemical reaction
  6. which of material be cannot to make lens
  7. Reaction Fe2O3+2Al → Al2O3+2Fe

15 Clues: Reaction Fe2O3+2Al → Al2O3+2Fe • the SI unit of a power a lens is • amalyse enzymes present in salaiva • lens concave lens are also known as • balloon like structure present in lungs • which of material be cannot to make lens • diameter of the reflecting surface is known as • what is responsible for transportation of water • ...

44 2025-11-30

44 crossword puzzle
Across
  1. Region where substrate binds on enzyme
  2. Neutral species with unpaired electron
  3. Adding acyl group to aromatic compound
  4. Breakdown of molecules to release energy
  5. Positively charged carbon species
  6. Short-lived species during reaction
  7. Organic molecule assisting enzyme
  8. Building complex molecules from simpler ones
  9. Minimum energy required to react
Down
  1. Site other than active site for regulation
  2. Non-protein helper for enzyme activity
  3. Total of all chemical reactions in organism
  4. Molecule acted on by enzyme
  5. Substance reducing enzyme activity
  6. Adding alkyl group to aromatic compound
  7. Atom or molecule donating electrons
  8. Protein acting as biological catalyst
  9. Negatively charged carbon species
  10. Highest energy point during reaction
  11. Atom or molecule seeking electrons
  12. Step-by-step pathway of reaction

21 Clues: Molecule acted on by enzyme • Step-by-step pathway of reaction • Minimum energy required to react • Negatively charged carbon species • Positively charged carbon species • Organic molecule assisting enzyme • Substance reducing enzyme activity • Atom or molecule seeking electrons • Atom or molecule donating electrons • Short-lived species during reaction • ...

crossword 2021-06-03

crossword crossword puzzle
Across
  1. The highest part of a transverse wave
  2. A short, easy way to show a chemical reaction, using symbols
  3. The principle stating that matter is not created or destroyed during a chemical reaction
  4. The average mass of all the isotopes of an element
  5. A form of potential energy that is stored in chemical bonds between atoms
  6. The temperature at which no more energy can be removed from matter
  7. A characteristic of a pure substance that describes its ability to change into a different substance
  8. A pure substance that cannot be broken down into other substances by chemical or physical means
  9. The rate at which velocity changes
  10. Electromagnetic waves with the shortest wavelengths and highest frequencies
  11. A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction
  12. The temperature at which a substance changes from liquid to gas
  13. A combination of symbols that represents the elements in a compound and their properties
  14. An atom or group of atoms that has become electrically charged
  15. The ratio of the mass of the substances to its volume
Down
  1. A change in which one or more substances combine or break apart to form new substances
  2. The number of protons in the nucleus of an atom
  3. The force that one surface exerts on another when the two surfaces rub against each other
  4. The force that pulls objects toward each other
  5. The maximum distance the particles of a medium move away from their rest positions as a wave passes through the medium
  6. The process in which substances undergo chemical changes that result in the formation of new substances
  7. A pure substance made of two or more elements chemically combined
  8. A negatively charged particle that is found outside the nucleus of an atom
  9. A push or pull exerted on an object
  10. The number of complete waves that pass a given point in a certain amount of time
  11. The basic particle from which all elements are made

26 Clues: The rate at which velocity changes • A push or pull exerted on an object • The highest part of a transverse wave • The force that pulls objects toward each other • The number of protons in the nucleus of an atom • The average mass of all the isotopes of an element • The basic particle from which all elements are made • ...

Chemistry 2019-02-20

Chemistry crossword puzzle
Across
  1. A combination of two or more substances that mix together without any chemical reaction taking place. An example is air which consists of nitrogen, oxygen, argon, carbon dioxide, etc. They do not have a fixed composition and can usually be easily separated.
  2. A solid substance that has been separated from a liquid in a chemical process.
  3. A non-homogenous mixture formed by immiscible liquids.
  4. The homogeneous mixture of a solute, which can be a solid or a liquid or a gas, dissolved in a solvent.
  5. A substance that reacts with a base to form a salt and water only. Any chemical substance that can donate protons or accept electrons.
  6. A substance used to cause a chemical reaction, especially in order to find out if another substance is present. Sometimes used as a synonym of reactant
Down
  1. A substance that reacts with an acid to form a salt and water only. Any chemical substance that can accept protons or donate electrons.
  2. A substance that makes a chemical reaction happen faster without being changed itself.
  3. A substance dissolved in another substance, usually the component of a solution present in the lesser amount.
  4. A species formed by the chemical combination of two or more elements
  5. A heterogeneous (or non-homogeneous) mixture formed by the combination of a solid (solute) and a liquid (solvent)
  6. A liquid from vapour in distillation.
  7. A substance, especially a liquid, that can dissolve another substance, usually the component of a solution present in the largest amount.
  8. A liquid or gas that has been filtered.

14 Clues: A liquid from vapour in distillation. • A liquid or gas that has been filtered. • A non-homogenous mixture formed by immiscible liquids. • A species formed by the chemical combination of two or more elements • A solid substance that has been separated from a liquid in a chemical process. • ...

stochimoetry 2024-04-01

stochimoetry crossword puzzle
Across
  1. A big chemist's number.
  2. mass: How heavy one mole of stuff is.
  3. equation: A sentence showing a chemical reaction.
  4. Here are simplified definitions for the terms you mentioned:
  5. reactant: The ingredient that runs out first.
  6. ratio: The ratio of amounts in moles.
  7. Stuff you end up with.
  8. Tiny numbers after elements showing how many there are.
  9. equation: Math sentence for a reaction.
  10. reactant: The ingredient left over.
Down
  1. number: A huge number of tiny things.
  2. Numbers in front of chemicals in a balanced equation.
  3. reaction: When stuff changes into other stuff.
  4. Math for chemical reactions.
  5. Stuff you start with.
  6. ratio: The ratio of amounts in grams.

16 Clues: Stuff you start with. • Stuff you end up with. • A big chemist's number. • Math for chemical reactions. • reactant: The ingredient left over. • number: A huge number of tiny things. • mass: How heavy one mole of stuff is. • ratio: The ratio of amounts in moles. • ratio: The ratio of amounts in grams. • equation: Math sentence for a reaction. • ...