chemical reaction Crossword Puzzles

Photosynthesis Review 2021-10-18

Photosynthesis Review crossword puzzle
Across
  1. chemical formula for water
  2. a substance that takes part in and undergoes change during a reaction
  3. gas that is taken in by plants during photosynthesis
  4. green pigment; absorbs sunlight
  5. sugar that is made during photosynthesis
Down
  1. "different feeder"; organism that does not make its own food EXAMPLE: animals
  2. type of biomolecule; sugars are examples
  3. "self feeder"; organism that makes its own food via photosynthesis
  4. a substance that is formed as the result of a chemical reaction
  5. organelle found in plants and algae; contains green pigment
  6. energy used during photosynthesis
  7. gas that is released during photosynthesis
  8. process that makes glucose using sunlight
  9. part of plant in which water is absorbed
  10. part of plant in which photosynthesis takes place; think of as solar panels

15 Clues: chemical formula for water • green pigment; absorbs sunlight • energy used during photosynthesis • type of biomolecule; sugars are examples • part of plant in which water is absorbed • sugar that is made during photosynthesis • process that makes glucose using sunlight • gas that is released during photosynthesis • gas that is taken in by plants during photosynthesis • ...

Phases of matter 2024-03-18

Phases of matter crossword puzzle
Across
  1. a chemical reaction where heat is released
  2. phase change from solid to liquid
  3. phase change where liquid turns to a solid
  4. phase that has no definite shape or volume
  5. phase change where liquid turns to a gas
  6. in this state of matter particles move around at medium speed
  7. phase changes require the adding or taking away
  8. phase with definite shape and definite volume
Down
  1. the tool people use to measure temperature
  2. phase change from gas to liquid like clouds
  3. in the state of matter particles only vibrate
  4. a chemical reaction where heat is absorbed
  5. when a thermometer gets warmer the mercury inside of it rises because it
  6. phase with definite volume but takes the shape of the container
  7. in this state of matter particles move around very fast

15 Clues: phase change from solid to liquid • phase change where liquid turns to a gas • the tool people use to measure temperature • a chemical reaction where heat is released • phase change where liquid turns to a solid • phase that has no definite shape or volume • a chemical reaction where heat is absorbed • phase change from gas to liquid like clouds • ...

Enzymes 2023-10-03

Enzymes crossword puzzle
Across
  1. Energy due to motion
  2. shape A shape that allows two molecules to fit closely together
  3. a permanent change in the shape of an enzyme's active site that prevents the binding of a substrate.
  4. complex When the enzyme and substrate are locked together.
  5. Hydrogen ion concentration
  6. The temperature or pH at which an enzyme is most active
  7. complex The temporary complex formed when the substrate binds to the active site of the enzyme.
  8. Enzyme that breaks down fat
  9. Enzyme that breaks down starch
  10. A specific region of an enzyme where the substrate binds and the reaction takes place.
Down
  1. When a protein loses its natural shape
  2. A substance produced in a chemical reaction
  3. site The part of an enzyme where the chemical reaction occurs.
  4. Enzyme that digests protein
  5. A biological catalyst that increases the rate of reactions in living organisms.
  6. Enzyme that breaks down starches into sugars
  7. site The part of an enzyme where the chemical reaction occurs.
  8. The structure on which an enzyme works.

18 Clues: Energy due to motion • Hydrogen ion concentration • Enzyme that digests protein • Enzyme that breaks down fat • Enzyme that breaks down starch • When a protein loses its natural shape • The structure on which an enzyme works. • A substance produced in a chemical reaction • Enzyme that breaks down starches into sugars • The temperature or pH at which an enzyme is most active • ...

Chemistry 2013-06-03

Chemistry crossword puzzle
Across
  1. neutral particles
  2. Bohr model of atom
  3. Positively charged particles
  4. negatively charged protons
  5. Chemical reaction is a rearrangement of atoms
Down
  1. substance consisting of atoms which have the same number of protons
  2. discovered the electron
  3. number of electrons
  4. gold foil experiment
  5. number of electron shells
  6. discovered first neutron
  7. Unit of a Chemical Element

12 Clues: neutral particles • Bohr model of atom • number of electrons • gold foil experiment • discovered the electron • discovered first neutron • number of electron shells • negatively charged protons • Unit of a Chemical Element • Positively charged particles • Chemical reaction is a rearrangement of atoms • substance consisting of atoms which have the same number of protons

Surface Chemistry 2021-10-26

Surface Chemistry crossword puzzle
Across
  1. A substance that can influence the rate of a chemical reaction but itself remains unchanged chemically at the end is called a
  2. ____ adsorption increases with increase in pressure
  3. _______ colloids are substances that do not form the colloidal sol readily when mixed with the dispersion medium.
  4. ______ is a process of removing an adsorbed substance from a surface on which it is adsorbed.
  5. Biological catalysts
  6. The zig-zag and random motion of the colloidal particles is called
  7. When the forces holding the adsorbate on the surface are of the magnitude of chemical bond forces, the process is called
  8. _____ are the components that help in stabilizing the emulsion process by getting itself placed in between the phases of the reaction.
  9. A commonly used adsorbent
Down
  1. The ______ phase constitutes the colloid particles
  2. Colloids in alcohol
  3. A gels dispersed medium is______
  4. If the adsorption is due to weak van der waals forces between adsorbent and adsorbate, it is termed as?
  5. It is the substance which is being adsorbed on the surface of another substance.
  6. Colloids in water
  7. adsorption of a gas on a solid is a spontaneous ______ reaction
  8. True solutions are ____ in nature

17 Clues: Colloids in water • Colloids in alcohol • Biological catalysts • A commonly used adsorbent • A gels dispersed medium is______ • True solutions are ____ in nature • The ______ phase constitutes the colloid particles • ____ adsorption increases with increase in pressure • adsorption of a gas on a solid is a spontaneous ______ reaction • ...

science 2023-05-12

science crossword puzzle
Across
  1. the distance from the top or surface to the bottom of something.
  2. raise to a higher position or level
  3. a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
  4. consisting of two equal, identical, or similar parts or things
  5. degree of consistency measured by the quantity of mass per unit volume.
  6. Spatans
  7. a substance that takes part in and undergoes change during a reaction
  8. an article or substance that is manufactured or refined for sale.
  9. only one; not one of several
Down
  1. the process of equating one thing with another
  2. consisting of two equal, identical, or similar parts or things
  3. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  4. the combination of ideas to form a theory or system
  5. he ability or tendency to float in water or air or some other fluid
  6. the state or process of rotting; decay.
  7. a substance that has no fixed shape and yields easily to external pressure; a gas or (especially) a liquid.
  8. (of a reaction or process) accompanied by or requiring the absorption of hea
  9. the amount of atoms that are in exactly 12 grams of carbon-12,

18 Clues: Spatans • only one; not one of several • raise to a higher position or level • the state or process of rotting; decay. • the process of equating one thing with another • the combination of ideas to form a theory or system • consisting of two equal, identical, or similar parts or things • consisting of two equal, identical, or similar parts or things • ...

Year 10 Chemistry Spelling Words 2016-08-07

Year 10 Chemistry Spelling Words crossword puzzle
Across
  1. occurs when a system is in its lowest energy state, or chemical equilibrium with its environment, e.g. when the outer electron shell is full
  2. A very small part of an atom that gives a negative charge
  3. A bond where the transfer of electrons from a metal to a non-metal allows for both atoms to obtain a full valence shell
  4. An atom or a molecule in which the total number of electrons is not equal to the total number of protons, giving the atom or molecule a net positive or negative electrical charge
  5. The rate at which an atom, molecule, or compound tends to undergo a chemical reaction with another atom, molecule, or compound
  6. The smallest particle of an element that can exist by itself or be combined with other atoms to form a molecule.
  7. chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns
  8. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
  9. chemical process in which substances act mutually on each other and are changed into different substances, or one substance changes into other substances
Down
  1. An element that is a highly reactive non-metal and oxidising agent. In it's most stable for there will be two of it (i.e. two atoms of this element) making up the molecule.
  2. the ability for a given substance, the solute, to dissolve in a solvent. It is measured in terms of the maximum amount of solute dissolved in a solvent at equilibrium
  3. the ability or power to conduct or transmit heat, electricity, or sound
  4. A facility with controlled conditions where scientific research, experiments, and measurements can be performed.
  5. A group of elements that are malleable, conduct heat and electricity and often positively charged they will bond with something negatively charged to form an ionic bond
  6. a substance formed when two or more chemical elements are chemically bonded together
  7. Gas A group of elements with very similar properties. Under standard conditions, they are all odourless, colourless, monatomic gases with very low chemical reactivity
  8. a way of writing that tells us the number of atoms of each element in a compound. It contains the symbols of the atoms of the elements present in the compound, as well as how many there are for each element in the form of subscripts
  9. Each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter. Each one is distinguished by its atomic number, i.e. the number of protons in the nuclei of its atoms
  10. Something you have to do to equations where it looks like matter has simply appeared or disappeared on the reactant side - remember chemistry is not magic

19 Clues: A very small part of an atom that gives a negative charge • the ability or power to conduct or transmit heat, electricity, or sound • a substance formed when two or more chemical elements are chemically bonded together • A facility with controlled conditions where scientific research, experiments, and measurements can be performed. • ...

Redox Reaction Concept 2019-11-21

Redox Reaction Concept crossword puzzle
Across
  1. S atom (no charge) gains 2 ____ reduced to S2-.
  2. Reduction is the ___ of electrons.
  3. Oxidation _____ is charges that represent transfer of electrons – used when balancing the equations.
  4. Complete the cell circuit by connecting the solutions of two half cell, without allowing them to mix each other.
  5. Oxidation is the ___ of electrons
  6. Elements which placed higher in the electrochemical series are more ____
  7. Oxidation is always occur at the _____
  8. Cathode is the ____ terminal.
Down
  1. Corrosion of iron is also known as
  2. ____ is always has +3 of oxidation number
  3. The solutions in a_____ cell are called electrolyte.
  4. _____ reaction is a redox reaction between a compound and molecular oxygen (O2) to form oxygen-containing products
  5. ____ is the gaining of hydrogen.
  6. Litium is one of _____ metal
  7. ____ reaction is type of chemical reaction that involves a transfer of electrons between two species
  8. Reduction is always occur at the _____
  9. Anode is the ____ terminal.
  10. The reducing ____ is the reactant that is being oxidized

18 Clues: Anode is the ____ terminal. • Litium is one of _____ metal • Cathode is the ____ terminal. • ____ is the gaining of hydrogen. • Oxidation is the ___ of electrons • Corrosion of iron is also known as • Reduction is the ___ of electrons. • Reduction is always occur at the _____ • Oxidation is always occur at the _____ • ____ is always has +3 of oxidation number • ...

Chemical Reactions 2026-01-06

Chemical Reactions crossword puzzle
Across
  1. A reaction in which a substance combines with oxygen.
  2. A reaction that absorbs heat from the surroundings.
  3. The acid used in sherbet to create a fizz.
  4. A metal that is stored under oil because it is so reactive.
  5. A solid formed when a metal reacts with oxygen.
  6. Another word for burning.
  7. The process of iron reacting with oxygen and water.
  8. A metal that does not react with oxygen.
Down
  1. A type of ice pack that uses an endothermic process.
  2. The metal used in self-heating cans.
  3. A substance that speeds up a reaction but is not used up.
  4. The metal that reacts vigorously with steam.
  5. The oxide formed when magnesium burns in air.
  6. A reaction that gives out heat to the surroundings.
  7. The gas produced when metals react with water.
  8. A substance that absorbs water vapour from air.
  9. The metal used in galvanising to prevent rust.
  10. A substance that stores chemical energy and can be burned.

18 Clues: Another word for burning. • The metal used in self-heating cans. • A metal that does not react with oxygen. • The acid used in sherbet to create a fizz. • The metal that reacts vigorously with steam. • The oxide formed when magnesium burns in air. • The gas produced when metals react with water. • The metal used in galvanising to prevent rust. • ...

Cellular Respiration 2021-05-31

Cellular Respiration crossword puzzle
Across
  1. required for photosynthesis to take place
  2. process in plants that produces glucose and oxygen
  3. energy molecule used by cells
  4. process that requires oxygen
  5. reaction written with chemical symbols of molecules
  6. product of cellular respiration
Down
  1. where the first step of cellular respiration occurs
  2. sugar molecule used to produce usable energy
  3. where most ATP is created
  4. site of photosynthesis in plant cells
  5. process that does not require oxygen
  6. outputs of a chemical equation
  7. inputs of a chemical equation
  8. process by which cells produce energy

14 Clues: where most ATP is created • process that requires oxygen • energy molecule used by cells • inputs of a chemical equation • outputs of a chemical equation • product of cellular respiration • process that does not require oxygen • site of photosynthesis in plant cells • process by which cells produce energy • required for photosynthesis to take place • ...

Vocab 6B 2017-03-27

Vocab 6B crossword puzzle
Across
  1. vertical column of elements on the Periodic Table that have similar physical and chemical properties.
  2. electrons on the outermost energy level of an atom that determine the reactivity of the atom.
  3. A chemical reaction that requires an input of energy and usually feels cold when it absorbs heat in the reaction.
  4. horizontal row of elements on the Periodic Table that have the same number of electron shells.
Down
  1. states that matter is neither created nor destroyed in ordinary chemical and physical changes.
  2. A chemical reaction in
  3. an interaction that holds atoms together.
  4. elements that have some properties of metals and non-metals and are found along the zigzag on the Periodic Table.

8 Clues: A chemical reaction in • an interaction that holds atoms together. • electrons on the outermost energy level of an atom that determine the reactivity of the atom. • states that matter is neither created nor destroyed in ordinary chemical and physical changes. • horizontal row of elements on the Periodic Table that have the same number of electron shells. • ...

Mixtures and Solutions Review 2021-10-18

Mixtures and Solutions Review crossword puzzle
Across
  1. The process of a material becoming incorporated uniformly into another or mixing together evenly
  2. The relative amount of a substance in a mixture
  3. To turn into gas, like water into water vapor
  4. The solid form of a material that can be identified by its natural shape or
  5. the liquid part of a solution
  6. A chemical that takes part in a chemical reaction
Down
  1. A special mixture formed when one or more materials dissolves in another
  2. A solid material that forms during a chemical reaction
  3. To make a solution less concentrated, usually by adding more liquid
  4. A characteristic of an object that can be observed, such as size, color, shape, or texture
  5. the solid part of a solution

11 Clues: the solid part of a solution • the liquid part of a solution • To turn into gas, like water into water vapor • The relative amount of a substance in a mixture • A chemical that takes part in a chemical reaction • A solid material that forms during a chemical reaction • To make a solution less concentrated, usually by adding more liquid • ...

Chemical reactions 2024-11-08

Chemical reactions crossword puzzle
Across
  1. When components combine to form new chemical bonds
  2. When heat energy is released from a chemical reaction.
  3. When particles release from a chemical reaction
Down
  1. When gasses from a chemical reaction go from gas to liquid form
  2. A solid formed by a change in solution
  3. When an object turns from one shade to another

6 Clues: A solid formed by a change in solution • When an object turns from one shade to another • When particles release from a chemical reaction • When components combine to form new chemical bonds • When heat energy is released from a chemical reaction. • When gasses from a chemical reaction go from gas to liquid form

ALKANE ALKENE and ALKYNES 2020-05-05

ALKANE ALKENE and ALKYNES crossword puzzle
Across
  1. small molecules joining together to form larger molecules
  2. breaking down long chain hydrocarbon
  3. bonds formed between atoms when they share electrons
  4. hydrocarbon with one or more double bond
  5. the simplest alcohol
Down
  1. the grp that determines the chemical properties of organic compound
  2. with same chemical formula but different arrangements
  3. chemical compound containing carbon and hydrogen
  4. organic compound containing hydroxyl grp
  5. hydrocarbon containing only single bond
  6. carbon chain filled with maximum no of hydrogen
  7. formed in the reaction between alcohol and carboxylic acid
  8. element that has capacity to share four electrons
  9. compounds having same functional grp and similar chemical properties

14 Clues: the simplest alcohol • breaking down long chain hydrocarbon • hydrocarbon containing only single bond • organic compound containing hydroxyl grp • hydrocarbon with one or more double bond • carbon chain filled with maximum no of hydrogen • chemical compound containing carbon and hydrogen • element that has capacity to share four electrons • ...

Madeline's Chemistry Review 2022-03-21

Madeline's Chemistry Review crossword puzzle
Across
  1. substances that look the same throughout the experiment
  2. mixtures that are made of metals dissolved into each other
  3. any substance that in water solution is slippery to the touch, tastes bitter, changes the color of indicators.
  4. a substance that is formed as the result of a chemical reaction.
  5. a substance that enters into and is altered in the course of a chemical reaction.
  6. one in which there is a relatively small amount of solute dissolved in the solution.
  7. a material made up of two or more different chemical substances which are not chemically bonded.
  8. Solutions that fall low on the Ph scale, from 1-6, like lemon juice and vinegar
Down
  1. if one solution in more darker than the other
  2. a substance that dissolves a solute, resulting in a solution.
  3. a special type of homogeneous mixture composed of two or more substances.
  4. consisting of different, distinguishable parts or elements.
  5. mass what an element’s protons plus neutrons equals
  6. the ability of a substance, the solute, to form a solution with another substance, the solvent.
  7. The smallest particle of a substance that has all of the physical and chemical properties of that substance.

15 Clues: if one solution in more darker than the other • mass what an element’s protons plus neutrons equals • substances that look the same throughout the experiment • mixtures that are made of metals dissolved into each other • consisting of different, distinguishable parts or elements. • a substance that dissolves a solute, resulting in a solution. • ...

Ethan Deronet 2022-03-08

Ethan Deronet crossword puzzle
Across
  1. the reactant with the least amount of product in terms of moles
  2. the number of units of 1 mole of any substance
  3. is the maximum amount of a reactant produced from your stoichiometric calculations
  4. the result of the actual yield divided by the theoretical yield multiplied by 100
  5. the lowest whole number ratio of elements within a compound
Down
  1. a multiple of an empirical formula
  2. a ratio between the number of moles of any 2 substances in a chemical reaction
  3. the number that balances a chemical reaction
  4. mass of one mole of a substance
  5. the study of ratios within chemical reactions

10 Clues: mass of one mole of a substance • a multiple of an empirical formula • the number that balances a chemical reaction • the study of ratios within chemical reactions • the number of units of 1 mole of any substance • the lowest whole number ratio of elements within a compound • the reactant with the least amount of product in terms of moles • ...

Eunice 2022-03-08

Eunice crossword puzzle
Across
  1. a number equal to the sum of the atomic masses of the atoms in a molecule
  2. multiple of an empirical formula
  3. the quantity of matter contained in an atom of an element
  4. mass of one mole of a substance
  5. a ratio between the number of moles of any 2 substances in a chemical reaction
Down
  1. study of ratios within chemical reactions
  2. the substance that will be used up first in a chemical reaction
  3. lowest whole number ratio of elements within a compound
  4. maximum amount of product that can be produced based on the limiting reactant
  5. 16.02x10^23

10 Clues: 16.02x10^23 • mass of one mole of a substance • multiple of an empirical formula • study of ratios within chemical reactions • lowest whole number ratio of elements within a compound • the quantity of matter contained in an atom of an element • the substance that will be used up first in a chemical reaction • ...

Enzymes 2023-04-20

Enzymes crossword puzzle
Across
  1. Substance which accelerates the rate of chemical reactions
  2. substance which proteins are made of
  3. proteins which accelerate chemical reactions in the organism
  4. part of an enzyme which connects to the substance it reacts with (no space in between words)
  5. the process which makes an enzyme stop working, usually because of the change of optimal temperature
Down
  1. The r3sulf of an enzyme controlled reaction
  2. the condition in which an enzyme works ideally
  3. The substance on which an enzyme works during an enzyme controlled reaction
  4. the substrate and the active site are..
  5. the process of increasing the rate of chemical reactions

10 Clues: substance which proteins are made of • the substrate and the active site are.. • The r3sulf of an enzyme controlled reaction • the condition in which an enzyme works ideally • the process of increasing the rate of chemical reactions • Substance which accelerates the rate of chemical reactions • proteins which accelerate chemical reactions in the organism • ...

Photosynthesis 2024-01-29

Photosynthesis crossword puzzle
Across
  1. A green pigment in plants
  2. Is whats needed for a reaction to take place
  3. Carries the glucose to the plant
  4. Where CO2 comes in and O2 comes out
  5. A plants food
  6. Where Photosynthesis occurs
Down
  1. Carries water from the roots
  2. A chemical reaction occuring in plants
  3. Sunlight Energy
  4. What is created after the reaction takes place

10 Clues: A plants food • Sunlight Energy • A green pigment in plants • Where Photosynthesis occurs • Carries water from the roots • Carries the glucose to the plant • Where CO2 comes in and O2 comes out • A chemical reaction occuring in plants • Is whats needed for a reaction to take place • What is created after the reaction takes place

Science facts 2023-11-09

Science facts crossword puzzle
Across
  1. The conservation of mass is a fundamental principle in the study of
  2. the law of conservation of mass is a fundamental concept in the field of
  3. The law of conservation of mass was first proposed by the French chemist
  4. In the a chemical reaction, the total number of atoms of each element must be the same on both ____ and____ sides
  5. The conservation of mass is a result of the law of conservation of
Down
  1. The conservation of mass applies to both _____ and ____ reactions
  2. The principle that states matter cannot be created or destroyed
  3. The mass of a closed system before a chemical reaction is the same as the mass of the system after the reaction is complete. This is an example of the conservation of
  4. the total mass of the reactants in a chemical reaction is equal to the total mass of the

9 Clues: The principle that states matter cannot be created or destroyed • The conservation of mass applies to both _____ and ____ reactions • The conservation of mass is a result of the law of conservation of • The conservation of mass is a fundamental principle in the study of • the law of conservation of mass is a fundamental concept in the field of • ...

Chemistry 2013-06-03

Chemistry crossword puzzle
Across
  1. number of electrons
  2. Bohr model of atom
  3. neutral particles
  4. discovered the electron
  5. Chemical reaction is a rearrangement of atoms
  6. negatively charged protons
  7. discovered first neutron
Down
  1. Positively charged particles
  2. number of electron shells
  3. gold foil experiment
  4. Unit of a Chemical Element
  5. substance consisting of atoms which have the same number of protons

12 Clues: neutral particles • Bohr model of atom • number of electrons • gold foil experiment • discovered the electron • discovered first neutron • number of electron shells • Unit of a Chemical Element • negatively charged protons • Positively charged particles • Chemical reaction is a rearrangement of atoms • substance consisting of atoms which have the same number of protons

Science voc 2025-10-16

Science voc crossword puzzle
Across
  1. two or more substances combine in ways that make new substances
  2. substance or molecule that participates in a chemical reaction
  3. no matter how the parts are rearranged
Down
  1. using symbols of the elements
  2. solid formed by a change in a solution
  3. without a change in chemical properties
  4. occurs when one or more substances
  5. formed in a chemical reaction; the final output

8 Clues: using symbols of the elements • occurs when one or more substances • solid formed by a change in a solution • no matter how the parts are rearranged • without a change in chemical properties • formed in a chemical reaction; the final output • substance or molecule that participates in a chemical reaction • two or more substances combine in ways that make new substances

Rocks and Weathering + Erosion 2013-11-17

Rocks and Weathering + Erosion crossword puzzle
Across
  1. _______ weathering involves gases and minerals
  2. when pressure pushes the rock grains together
  3. people who study rocks and how they are formed
  4. ____ rain is a form of chemical weathering
  5. weathering is done by _____ forces
  6. _____ roots are used to hold the soil together. this can help stop erosion
  7. breaks down rocks into grains
  8. this can also cause erosion
  9. when magma cools
  10. this is the hardest substance known to man
Down
  1. where igneous and metamorphic rocks are formed
  2. chemical reaction forms sedimentary rocks
  3. marble is made from this
  4. rocks formed by sediments of other rocks
  5. when lava cools
  6. carries rocks to a new location

16 Clues: when lava cools • when magma cools • marble is made from this • this can also cause erosion • breaks down rocks into grains • carries rocks to a new location • weathering is done by _____ forces • rocks formed by sediments of other rocks • chemical reaction forms sedimentary rocks • ____ rain is a form of chemical weathering • this is the hardest substance known to man • ...

Test 2019-10-09

Test crossword puzzle
Across
  1. the energy which a system possesses because of movement within the system.
  2. the substances being combined in a reaction.
  3. an intermediate molecule which occurs when reactants are in the process of rearranging to form products.
  4. the minimum potential energy required to change reactants into an activated complex.
  5. a graph showing how the number of particles having a given kinetic energy changes with increasing temperature.
  6. a chemical which can be added to a reaction to increase the rate of the reaction.
  7. the energy existing as a result of an object's position in space, as well as the sum of all the attractive and repulsive forces existing among the particles which make up the object.
Down
  1. the amount of a reactant or product involved in reaction in a specific time.
  2. the slowest step in a reaction mechanism.
  3. a reaction which absorbs heat, so that products have more energy than reactants.
  4. molecules which are produced in one step of a reaction mechanism and subsequently used up in another step.
  5. the theory stating that molecules act as small, hard spheres which bounce off each other and transfer energy among themselves during their collisions.
  6. the actual sequence of steps which make up an overall reaction.
  7. the total kinetic and potential energy which exists in a system when it is at constant pressure.

14 Clues: the slowest step in a reaction mechanism. • the substances being combined in a reaction. • the actual sequence of steps which make up an overall reaction. • the energy which a system possesses because of movement within the system. • the amount of a reactant or product involved in reaction in a specific time. • ...

Science 2025-02-13

Science crossword puzzle
Across
  1. Temperature around the area proliferate.
  2. How do you remember what exothermic means
  3. Breaks bonds
  4. Protein
  5. How do you remember what endothermic means
Down
  1. organ A example of a exothermic reaction
  2. Temperature around the area abates.
  3. Converting a solid hydrate into an anhyrorous salt
  4. Formed in a chemical reaction.
  5. How much energy does endothermic reaction takes to break bonds

10 Clues: Protein • Breaks bonds • Formed in a chemical reaction. • Temperature around the area abates. • organ A example of a exothermic reaction • Temperature around the area proliferate. • How do you remember what exothermic means • How do you remember what endothermic means • Converting a solid hydrate into an anhyrorous salt • ...

Photosynthesis 2026-01-09

Photosynthesis crossword puzzle
Across
  1. What is released along with the carbohydrates?
  2. Where the reaction takes place
  3. reaction What kind of reaction is this
  4. What are needed to begin photosynthesis?
  5. Absorbs the sunlight
Down
  1. Distributes water to the plant
  2. What is food for the plant?
  3. The pores that open and close
  4. Rays from the sunlight
  5. What is formed during photosynthesis?

10 Clues: Absorbs the sunlight • Rays from the sunlight • What is food for the plant? • The pores that open and close • Distributes water to the plant • Where the reaction takes place • What is formed during photosynthesis? • reaction What kind of reaction is this • What are needed to begin photosynthesis? • What is released along with the carbohydrates?

Characteristics of Life 2022-09-02

Characteristics of Life crossword puzzle
Across
  1. contains only one cell
  2. reaction
  3. type of reproduction that has one parent
  4. reason of reaction
  5. adopting a parent's feature
  6. smallest unit of life that makes up the body
  7. contains many cells
  8. physical changes
Down
  1. cells grow to a certain size then divide
  2. orderly formation of new cells
  3. production of offspring by sexual or asexual process
  4. type of reproduction that has two parents
  5. chemical process in cells of our body that change food into energy
  6. ability to do work
  7. internal processes

15 Clues: reaction • physical changes • reason of reaction • ability to do work • internal processes • contains many cells • contains only one cell • adopting a parent's feature • orderly formation of new cells • cells grow to a certain size then divide • type of reproduction that has one parent • type of reproduction that has two parents • smallest unit of life that makes up the body • ...

chapter 13 crossword-jason lemle 2020-10-07

chapter 13 crossword-jason lemle crossword puzzle
Across
  1. what kind of reaction has a net absorption
  2. waht type of reaction gives off light and heat
  3. atoms simply change _______ to form new material
  4. reactants create what
Down
  1. heat or light is given off
  2. _______states that no atoms are gained or lost during any reaction
  3. what is another word for activation energy
  4. what kind of reaction has a net release
  5. during a chemical reaction one or more new ________ are formed
  6. when balancing the elements you need to follow the balancing________

10 Clues: reactants create what • heat or light is given off • what kind of reaction has a net release • what is another word for activation energy • what kind of reaction has a net absorption • waht type of reaction gives off light and heat • atoms simply change _______ to form new material • during a chemical reaction one or more new ________ are formed • ...

Homework: Energy Change Reactions 2025-10-27

Homework: Energy Change Reactions crossword puzzle
Across
  1. To take in or soak up energy.
  2. A reaction that releases energy and feels hot.
  3. A reaction that absorbs energy and feels cold.
  4. The ability to cause change or do work.
Down
  1. When energy moves from one place to another.
  2. The part of the reaction being studied (the chemicals inside the pack).
  3. Everything outside the reaction that can gain or lose energy.
  4. To let out or give off energy.
  5. Reaction When substances change into new substances with different properties.
  6. A connection that holds atoms together.

10 Clues: To take in or soak up energy. • To let out or give off energy. • A connection that holds atoms together. • The ability to cause change or do work. • When energy moves from one place to another. • A reaction that releases energy and feels hot. • A reaction that absorbs energy and feels cold. • Everything outside the reaction that can gain or lose energy. • ...

chapter 13 crossword-jason lemle 2020-10-07

chapter 13 crossword-jason lemle crossword puzzle
Across
  1. what kind of reaction has a net absorption
  2. waht type of reaction gives off light and heat
  3. atoms simply change _______ to form new material
  4. reactants create what
Down
  1. heat or light is given off
  2. _______states that no atoms are gained or lost during any reaction
  3. what is another word for activation energy
  4. what kind of reaction has a net release
  5. during a chemical reaction one or more new ________ are formed
  6. when balancing the elements you need to follow the balancing________

10 Clues: reactants create what • heat or light is given off • what kind of reaction has a net release • what is another word for activation energy • what kind of reaction has a net absorption • waht type of reaction gives off light and heat • atoms simply change _______ to form new material • during a chemical reaction one or more new ________ are formed • ...

We Got Chemistry 2021-10-01

We Got Chemistry crossword puzzle
Across
  1. ______ change is a change that modification to shape, size, color, or state of matter.
  2. requirements for a chemical reaction to take place.
  3. The result of a chemical reaction.
  4. symbols that represents the change from reactant to product.
  5. A product of one or more items that can be easily separated.
  6. a substance found on the periodic table that cannot be broken down into any smaller substances that aren't subatomic molecules
Down
  1. data made by the use of instruments and numbers.
  2. data made by the use of your 5 senses.
  3. ____ can't be created or destroyed.
  4. _______ change is a change that creates a new substance

10 Clues: The result of a chemical reaction. • ____ can't be created or destroyed. • data made by the use of your 5 senses. • data made by the use of instruments and numbers. • requirements for a chemical reaction to take place. • _______ change is a change that creates a new substance • symbols that represents the change from reactant to product. • ...

Photosynthesis 2022-04-08

Photosynthesis crossword puzzle
Across
  1. it is the chemical equation for? (look it up if you need to)
  2. it is the things that make a reaction happen
  3. distributes water to the plant through it's roots
  4. it is what you get when you mix two reactants together
  5. it is the type of energy that the sun puts off
Down
  1. is it a chemical or physical reaction
  2. what does the plant release back into the air
  3. it is where all the organelles are stored that help with photosynthesis
  4. the green pigment that adsorbs sun light
  5. what is another name for sugar

10 Clues: what is another name for sugar • is it a chemical or physical reaction • the green pigment that adsorbs sun light • it is the things that make a reaction happen • what does the plant release back into the air • it is the type of energy that the sun puts off • distributes water to the plant through it's roots • it is what you get when you mix two reactants together • ...

Energy flow 2025-12-09

Energy flow crossword puzzle
Across
  1. organelle in plant cells where photosynthesis occurs.
  2. The process by which plants, algae, and some bacteria convert light energy into chemical energy stored in glucose.
  3. The starting materials in a chemical reaction.
Down
  1. The process by which cells break down glucose in the presence of oxygen to release ATP
  2. The substances formed at the end of a chemical reaction.
  3. The fluid-filled space surrounding thylakoids inside the chloroplast.
  4. A simple sugar (C₆H₁₂O₆) that serves as an energy source for cells.
  5. Flattened membrane sacs inside chloroplasts.
  6. The universal energy currency of cells.
  7. The capacity to do work.

10 Clues: The capacity to do work. • The universal energy currency of cells. • Flattened membrane sacs inside chloroplasts. • The starting materials in a chemical reaction. • organelle in plant cells where photosynthesis occurs. • The substances formed at the end of a chemical reaction. • A simple sugar (C₆H₁₂O₆) that serves as an energy source for cells. • ...

Periodic Crossword - Arianna Montoya 2022-10-30

Periodic Crossword - Arianna Montoya crossword puzzle
Across
  1. a charge of negative electricity
  2. an optical instrument used for viewing very small objects
  3. a set of chemical symbols showing the elements present in a compoun
  4. any chemical compound formed from the reaction of an acid
  5. a substance or matter in a state in which it will expand freely
  6. more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances
  7. the basic unit of a chemical element
  8. a charge of positive electricity
  9. a subatomic particle of about the same mass as a proton but without an electric charge
  10. to measure weight
  11. a lipped cylindrical glass container for laboratory use
Down
  1. an instrument for measuring the density of liquid
  2. the chemical element of atomic number 29
  3. a molecule or other entity that can donate a proton or accept an electron pair in reactions
  4. close-fitting eyeglasses with side shields
  5. a soft silvery-white reactive metal
  6. a liquid mixture
  7. an instrument for measuring and indicating temperature
  8. the chemical element of atomic number 16
  9. a thing that is composed of two or more separate element

20 Clues: a liquid mixture • to measure weight • a charge of negative electricity • a charge of positive electricity • a soft silvery-white reactive metal • the basic unit of a chemical element • the chemical element of atomic number 29 • the chemical element of atomic number 16 • close-fitting eyeglasses with side shields • an instrument for measuring the density of liquid • ...

Periodic Crossword - Arianna Montoya 2022-10-30

Periodic Crossword - Arianna Montoya crossword puzzle
Across
  1. the basic unit of a chemical element
  2. a substance or matter in a state in which it will expand freely
  3. an instrument for measuring the density of liquid
  4. an instrument for measuring and indicating temperature
  5. a charge of negative electricity
  6. any chemical compound formed from the reaction of an acid
  7. a soft silvery-white reactive metal
  8. a subatomic particle of about the same mass as a proton but without an electric charge
  9. to measure weight
  10. the chemical element of atomic number 29
Down
  1. close-fitting eyeglasses with side shields
  2. an optical instrument used for viewing very small objects
  3. a charge of positive electricity
  4. more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances
  5. a thing that is composed of two or more separate element
  6. a set of chemical symbols showing the elements present in a compoun
  7. a lipped cylindrical glass container for laboratory use
  8. a molecule or other entity that can donate a proton or accept an electron pair in reactions
  9. the chemical element of atomic number 16
  10. a liquid mixture

20 Clues: a liquid mixture • to measure weight • a charge of positive electricity • a charge of negative electricity • a soft silvery-white reactive metal • the basic unit of a chemical element • the chemical element of atomic number 16 • the chemical element of atomic number 29 • close-fitting eyeglasses with side shields • an instrument for measuring the density of liquid • ...

Year 10 Chemistry Spelling Words 2016-08-07

Year 10 Chemistry Spelling Words crossword puzzle
Across
  1. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
  2. the ability for a given substance, the solute, to dissolve in a solvent. It is measured in terms of the maximum amount of solute dissolved in a solvent at equilibrium
  3. chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns
  4. chemical process in which substances act mutually on each other and are changed into different substances, or one substance changes into other substances
  5. The rate at which an atom, molecule, or compound tends to undergo a chemical reaction with another atom, molecule, or compound
  6. An atom or a molecule in which the total number of electrons is not equal to the total number of protons, giving the atom or molecule a net positive or negative electrical charge
  7. occurs when a system is in its lowest energy state, or chemical equilibrium with its environment, e.g. when the outer electron shell is full
  8. A bond where the transfer of electrons from a metal to a non-metal allows for both atoms to obtain a full valence shell
  9. A group of elements that are malleable, conduct heat and electricity and often positively charged they will bond with something negatively charged to form an ionic bond
Down
  1. Something you have to do to equations where it looks like matter has simply appeared or disappeared on the reactant side - remember chemistry is not magic
  2. Each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter. Each one is distinguished by its atomic number, i.e. the number of protons in the nuclei of its atoms
  3. Gas A group of elements with very similar properties. Under standard conditions, they are all odourless, colourless, monatomic gases with very low chemical reactivity
  4. a substance formed when two or more chemical elements are chemically bonded together
  5. a way of writing that tells us the number of atoms of each element in a compound. It contains the symbols of the atoms of the elements present in the compound, as well as how many there are for each element in the form of subscripts
  6. A facility with controlled conditions where scientific research, experiments, and measurements can be performed.
  7. the ability or power to conduct or transmit heat, electricity, or sound
  8. A very small part of an atom that gives a negative charge
  9. The smallest particle of an element that can exist by itself or be combined with other atoms to form a molecule.
  10. An element that is a highly reactive non-metal and oxidising agent. In it's most stable for there will be two of it (i.e. two atoms of this element) making up the molecule.

19 Clues: A very small part of an atom that gives a negative charge • the ability or power to conduct or transmit heat, electricity, or sound • a substance formed when two or more chemical elements are chemically bonded together • A facility with controlled conditions where scientific research, experiments, and measurements can be performed. • ...

Chemistry Vocabulary 2013-09-30

Chemistry Vocabulary crossword puzzle
Across
  1. Substances formed from a chemical reaction.
  2. acids Small compounds that are made of carbon, nitrogen, oxygen, hydrogen, and sometimes sulfur. Are the building blocks of proteins.
  3. Bond Electrical attraction between two oppositely charged atoms or groups of atoms.
  4. Starting substances of a chemical reaction.
  5. bond Chemical bond formed when electrons are shared equally.
  6. Molecules that have an unequal distribution of charges.
  7. Bond Weak interaction involving a hydrogen atom and another atom.
Down
  1. Complex macromolecules that store genetic information.
  2. Substance in which another substance is dissolved.
  3. Large molecules that are formed by joining smaller molecules together.

10 Clues: Substances formed from a chemical reaction. • Starting substances of a chemical reaction. • Substance in which another substance is dissolved. • Complex macromolecules that store genetic information. • Molecules that have an unequal distribution of charges. • bond Chemical bond formed when electrons are shared equally. • ...

States of Matter 2024-07-15

States of Matter crossword puzzle
Across
  1. A measure of how much solute is dissolved in a solvent to make a solution.
  2. If two liquids form a completely uniform mixture when added together.
  3. A substance that does not dissolve in a particular solvent.
  4. Two or more substances mixed together.
  5. Solid substance that has dissolved in a liquid.
  6. A measure of how much of a solid dissolves in a solvent at a particular temperature.
  7. A chemical reaction in which heat energy is produced and released to the surroundings.
  8. The process by which different fluids mix as a result of random motions of the particles.
  9. A solution that contains as much dissolved solute as possible at a certain temperature is know as ...
  10. A mixture of elements (usually metals).
Down
  1. A chemical reaction that takes in heat energy from the surroundings.
  2. A term that describes a liquid that evaporates easily.
  3. A solute that dissolves in a particular solvent.
  4. A mixture containing small particles of an insoluble solid.
  5. The liquid that dissolves a solid to form a solution.
  6. The space between atoms ir molecules in a liquid or gas.
  7. A reaction in which an insoluble salt is prepared from two salt solutions.

17 Clues: Two or more substances mixed together. • A mixture of elements (usually metals). • Solid substance that has dissolved in a liquid. • A solute that dissolves in a particular solvent. • The liquid that dissolves a solid to form a solution. • A term that describes a liquid that evaporates easily. • The space between atoms ir molecules in a liquid or gas. • ...

Chapter 5 2011-12-12

Chapter 5 crossword puzzle
Across
  1. The color of the precipitate on p 146
  2. Chemical symbol for magnesium
  3. A solid that forms from a solution during a chemical reaction
  4. Chemical symbol for magnesium oxide
  5. Reactions that give off energy
  6. The element on the top of p 149
  7. What's on the guy's ankle on p147
  8. Another element in water
Down
  1. What explodes on page 145
  2. The building on p 148
  3. The animal on page 144
  4. Reactions that absorb energy
  5. What is the plant onpage 146 in different colors
  6. One of the elements in water

14 Clues: The building on p 148 • The animal on page 144 • Another element in water • What explodes on page 145 • Reactions that absorb energy • One of the elements in water • Chemical symbol for magnesium • Reactions that give off energy • The element on the top of p 149 • What's on the guy's ankle on p147 • Chemical symbol for magnesium oxide • The color of the precipitate on p 146 • ...

Chemical vs Physical Changes 2025-11-05

Chemical vs Physical Changes crossword puzzle
Across
  1. What word describes a change that cannot be easily reversed?
  2. What indicator describes a reaction that produces a new smell, like rotting food?
  3. What term describes the process when salt separates into positive and negative parts in water?
  4. A reaction may require energy from the ________ in order to take place.
  5. What indicator involves bubbles forming from a reaction, as in vinegar and baking soda?
  6. What kind of change involves breaking and forming bonds between atoms?
  7. What is the name for the solid that forms when two solutions produce an insoluble product?
Down
  1. What word describes a metal made by mixing molten metals (for example, brass)?
  2. What gas is produced when vinegar and baking soda react? (two words)
  3. What example from the text shows a reversible change involving freezing?
  4. What is the term for the newly formed substances after a chemical reaction?
  5. What is the term for a change in how a material feels (for example, sanding wood)?
  6. What term describes charged atoms or molecules, such as those formed when salt dissolves in water?
  7. What state change is shown when water turns into steam? (liquid → ?)

14 Clues: What word describes a change that cannot be easily reversed? • What gas is produced when vinegar and baking soda react? (two words) • What state change is shown when water turns into steam? (liquid → ?) • What kind of change involves breaking and forming bonds between atoms? • A reaction may require energy from the ________ in order to take place. • ...

7th Grade Science #2 2021-03-23

7th Grade Science #2 crossword puzzle
Across
  1. collection of tissues that carry specialize function of the body
  2. substance that forms in a chemical reaction
  3. process of cell division forming 2 new nuclei with same # of chromosomes
  4. cell organelles surrounded by 2 membranes that are the site of cellular respiration
  5. smallest unit of a substance that keeps physical and chemical properties
  6. diffusion of water through semipermeable membrane
Down
  1. exchange of oxygen and carbon dioxide between living cells nd environment
  2. organelle in which amino acids are hooked together to make proteins
  3. substance or molecule that participates in a chemical reaction
  4. organelle that digests food particles, waste, cell parts, and foreign invaders
  5. an atom's central region which made of protons and neutrons

11 Clues: substance that forms in a chemical reaction • diffusion of water through semipermeable membrane • an atom's central region which made of protons and neutrons • substance or molecule that participates in a chemical reaction • collection of tissues that carry specialize function of the body • organelle in which amino acids are hooked together to make proteins • ...

Rocks and Weathering + Erosion 2013-11-17

Rocks and Weathering + Erosion crossword puzzle
Across
  1. _______ weathering involves gases and minerals
  2. when pressure pushes the rock grains together
  3. people who study rocks and how they are formed
  4. ____ rain is a form of chemical weathering
  5. weathering is done by _____ forces
  6. _____ roots are used to hold the soil together. this can help stop erosion
  7. breaks down rocks into grains
  8. this can also cause erosion
  9. when magma cools
  10. this is the hardest substance known to man
Down
  1. where igneous and metamorphic rocks are formed
  2. chemical reaction forms sedimentary rocks
  3. marble is made from this
  4. rocks formed by sediments of other rocks
  5. when lava cools
  6. carries rocks to a new location

16 Clues: when lava cools • when magma cools • marble is made from this • this can also cause erosion • breaks down rocks into grains • carries rocks to a new location • weathering is done by _____ forces • rocks formed by sediments of other rocks • chemical reaction forms sedimentary rocks • ____ rain is a form of chemical weathering • this is the hardest substance known to man • ...

States of matter 2024-11-18

States of matter crossword puzzle
Across
  1. The smallest particle of a element
  2. Olaf you're turning from a solid to a liquid
  3. A toy car is a type of ____
  4. Elsa can turn a liquid into a solid
  5. particles never stop moving
  6. Two atoms joined together
  7. Positive charged big particle
  8. the process of a chemical change
  9. Oxygen is a type of___
Down
  1. when a substances changes and gets new properties
  2. when a subsatnce changes by shape or size
  3. water is a type of ____
  4. A substance that can't be broken down
  5. large particle with no charge
  6. small negative charged particle
  7. when a liquid turns into a gas

16 Clues: Oxygen is a type of___ • water is a type of ____ • Two atoms joined together • A toy car is a type of ____ • particles never stop moving • large particle with no charge • Positive charged big particle • when a liquid turns into a gas • small negative charged particle • the process of a chemical change • The smallest particle of a element • Elsa can turn a liquid into a solid • ...

Acids and Alkalis 2024-03-19

Acids and Alkalis crossword puzzle
Across
  1. The substances formed as a result of the chemical reaction are called p__________.
  2. A value measures how acidic or alklaine the substance is.
  3. __________ turns colorless limewater to milky.
  4. ____________ hydroxide is the component of limewater.
  5. _________ paper can determine a solution whether it is acidic, alkaline or neutral.
  6. ___________ acid can be found in cola.
  7. One of the substances contains calcium carbonate.
Down
  1. The substances that take part in a chemical reaction are called r__________.
  2. When _________ is tested by burning splint, it burns with "pop" sound.
  3. ____________ has a bitter taste and a slippery feel.
  4. ___________acid can be found in stomach.
  5. Orange tastes sour because it contains ___________.
  6. Solutions which are neither acidic nor alkaline are __________.
  7. __________ is commonly used as glass cleaner.

14 Clues: ___________ acid can be found in cola. • ___________acid can be found in stomach. • __________ is commonly used as glass cleaner. • __________ turns colorless limewater to milky. • One of the substances contains calcium carbonate. • Orange tastes sour because it contains ___________. • ____________ has a bitter taste and a slippery feel. • ...

Enzymes 2025-12-15

Enzymes crossword puzzle
Across
  1. A measure of how acidic or alkaline a solution is
  2. complex A temporary structure formed when enzyme and substrate bind
  3. The meeting of enzyme and substrate molecules
  4. The substance formed after the reaction
  5. temperature The temperature at which an enzyme works fastest
  6. A protein that acts as a biological catalyst
  7. energy Energy that increases as temperature rises
Down
  1. The specific form that allows enzyme and substrate to fit
  2. All chemical reactions that occur in a living organism
  3. The change in enzyme shape causing loss of function
  4. A substance that increases the rate of a chemical reaction
  5. The molecule that an enzyme acts upon
  6. site The region of an enzyme where the substrate binds
  7. A large molecule made of amino acids
  8. pH The pH at which an enzyme functions best

15 Clues: A large molecule made of amino acids • The molecule that an enzyme acts upon • The substance formed after the reaction • pH The pH at which an enzyme functions best • A protein that acts as a biological catalyst • The meeting of enzyme and substrate molecules • A measure of how acidic or alkaline a solution is • energy Energy that increases as temperature rises • ...

Law of Conservation of Mass 2023-10-11

Law of Conservation of Mass crossword puzzle
Across
  1. means yields or reacts to form in a chemical equation
  2. used to separate sand from salt
  3. method for separating a salad
  4. the small two in water
  5. contains more than one type of element
  6. is a pure substance, contains one type of atom
  7. contains two or more substances, can be separated
  8. separating a dry mixture that has substances of different sizes
Down
  1. used to separate a soluble solid from a liquid by heating and boiling
  2. are on the left side of a chemical equation
  3. 2NaCl What does the 2 represent?
  4. used to separate magnetic items from nonmagnetic items
  5. are on the right side of a chemical equation
  6. separating a solid from a liquid using a filter
  7. equation a symbolic representation of a chemical reaction

15 Clues: the small two in water • method for separating a salad • used to separate sand from salt • 2NaCl What does the 2 represent? • contains more than one type of element • are on the left side of a chemical equation • are on the right side of a chemical equation • is a pure substance, contains one type of atom • separating a solid from a liquid using a filter • ...

Chemistry Final 2025-05-13

Chemistry Final crossword puzzle
Across
  1. Term that refers to double bonds in a covalent compound
  2. Class of elements that have properties of both metals and nonmetals
  3. Scientist credited with the discovery of the mole
  4. Group 1 on the periodic table
  5. In a solution this is the substance that is dissolved
  6. Amount of energy required to remove an electron from an atom
  7. SI unit for amount of a substance
  8. Term that refers to single bonds in a covalent compound
  9. Positively charged ions, typically metals
  10. Starting substances in a chemical reaction
  11. Scientist credited with discovering the first periodic table
  12. Type of reaction in which one complex substance breaks down
  13. Group 18 on the periodic table
  14. Type of bonding that occurs between two nonmetals
  15. Property of metals, shiny
  16. Ability of an atom to attract electrons within a bond
  17. Type of bonding that occurs between a metal and a nonmetal
  18. Group of atoms that are always found in pairs (HNOFClBrI)
Down
  1. Term used to describe a covalent compound that has multiple correct Lewis structures
  2. Finals substances in a chemical reaction
  3. Type of reaction that requires fuel and oxygen and produces carbon dioxide and water
  4. Type of bonding that occurs between two metals
  5. Group 2 on the periodic table
  6. Group 17 on the periodic table
  7. Type of covalent bond in which electrons are unequally shared
  8. Type of reaction in which two simple substances combine to form a complex one
  9. Property of metals, ability to be flattened and shaped
  10. Property of metals, ability to be pulled into wires
  11. Negatively charged ion, typically nonmetals
  12. In a solution this is the substance that does the dissolving
  13. Scientist credited with discovering the modern periodic table
  14. Half the distance between adjacent nuclei of two corresponding atoms
  15. Group of atoms that function as one charged substance
  16. Type of covalent bond in which electrons are shared equally

34 Clues: Property of metals, shiny • Group 2 on the periodic table • Group 1 on the periodic table • Group 17 on the periodic table • Group 18 on the periodic table • SI unit for amount of a substance • Finals substances in a chemical reaction • Positively charged ions, typically metals • Starting substances in a chemical reaction • Negatively charged ion, typically nonmetals • ...

Unit 7 Vocabulary 2021-02-01

Unit 7 Vocabulary crossword puzzle
Across
  1. A change in appearance, such as cutting paper.
  2. The Law of ______ of Mass says that matter cannot be created or destroyed.
  3. A type of reaction where energy is absorbed and temperature might go down.
  4. The substances that go into a chemical reaction.
  5. A type of reaction where energy is given off and temperature might increase.
Down
  1. A process in which substances change to form new substances with new properties.
  2. A solid that is formed by mixing two liquids.
  3. The substances that result from a chemical reaction.

8 Clues: A solid that is formed by mixing two liquids. • A change in appearance, such as cutting paper. • The substances that go into a chemical reaction. • The substances that result from a chemical reaction. • The Law of ______ of Mass says that matter cannot be created or destroyed. • A type of reaction where energy is absorbed and temperature might go down. • ...

Life's Processes Vocab assignment 2025-03-20

Life's Processes Vocab assignment crossword puzzle
Across
  1. A process where the chemical composition of a substance is changed.
  2. What comes out of a chemical reaction(the output).
  3. _
  4. change
Down
  1. What goes into a chemical reaction(the input).
  2. _
  3. The ability to do something.
  4. Matter cannot be created or destroyed, only changed.
  5. _

9 Clues: _ • _ • _ • change • The ability to do something. • What goes into a chemical reaction(the input). • What comes out of a chemical reaction(the output). • Matter cannot be created or destroyed, only changed. • A process where the chemical composition of a substance is changed.

Chemical reactions and Equations 2025-04-29

Chemical reactions and Equations crossword puzzle
Across
  1. A reaction in which one product is formed from two or more reactatnts
  2. Reactions in which heat is released along with products
  3. added to foods containing fats and oil to prevent oxidation
  4. A reaction in which an atom or set of atoms is displaced by another atom
  5. If a subtance gains oxygen during a reaction
  6. Combining power of an element
Down
  1. Reactions in which energy is absorbed
  2. When a metal is attacked by substances around it such as moisture, acids and etc
  3. Insoluble substance formed is known as _
  4. The _ coating on silver is an example of corrsion
  5. Substances that undergo chemical change in a reaction
  6. Bromide Reaction used in black and white photography

12 Clues: Combining power of an element • Reactions in which energy is absorbed • Insoluble substance formed is known as _ • If a subtance gains oxygen during a reaction • The _ coating on silver is an example of corrsion • Bromide Reaction used in black and white photography • Substances that undergo chemical change in a reaction • ...

chemistry crossword 2025-04-04

chemistry crossword crossword puzzle
Across
  1. the periodic table
  2. change smells different
  3. the rows for the periodic table
  4. change looks different
  5. has no charge
Down
  1. has negative charge
  2. the columns of the periodic table
  3. has positive charge
  4. A specific chemical reaction or element
  5. weight of an atom
  6. holds electrons

11 Clues: has no charge • holds electrons • weight of an atom • the periodic table • has negative charge • has positive charge • change looks different • change smells different • the rows for the periodic table • the columns of the periodic table • A specific chemical reaction or element

Energy and Energy Transformations 2023-12-08

Energy and Energy Transformations crossword puzzle
Across
  1. energy; affected by height or position
  2. chemical to mechanical, gas, a chemical makes this thing move
  3. the energy from vibrations in matter
  4. Mechanical to Sound, you hit the strings of this instrument with your finger and then it produces sound
  5. light energy or electromagnetic energy
  6. energy of work
  7. radiant to chemical, energy from the sun creates a chemical reaction that lets this thing grow
  8. Energy stored in the bonds of molecules
  9. energy is neither created nor destroyed
  10. motion energy
Down
  1. energy locked in the nucleus of an atom
  2. Radiant to Electricity, Light from the sun produces electricity using this electronic
  3. stored energy
  4. the energy of heat
  5. Energy of moving electrons, energy of electricity
  6. mechanical to electrical, then the turbine of this thing moves to create electricity
  7. electrical to radiant, the electricity coming from the outlet up through the cord to this electronic make it produce light
  8. chemical to thermal, this thing turns gas into heat
  9. chemical to thermal to radiant, chemical energy from the wood, thermal energy from the heat, radiant energy from the light
  10. electricity to sound to light, the electricity from an outlet powers this screen, sound comes from the device then light comes off of the screen in result of the electricity

20 Clues: stored energy • motion energy • energy of work • the energy of heat • the energy from vibrations in matter • energy; affected by height or position • light energy or electromagnetic energy • energy locked in the nucleus of an atom • Energy stored in the bonds of molecules • energy is neither created nor destroyed • Energy of moving electrons, energy of electricity • ...

EOC Study Guide #4 2019-11-22

EOC Study Guide #4 crossword puzzle
Across
  1. The chemicals that come-out of a chemical reaction.
  2. One of the two main processes involved in photosynthesis?
  3. What two chemicals are produced in the Light Reactions and used in the Calvin Cycle?
  4. An energy-rich molecule produced in the Light Reactions and used-up in the Calvin Cycle.
  5. An electron carrier that transfers some of the energy absorbed from the sun in Light Reactions to the Calvin Cycle.
  6. Glucose is produced from the Calvin Cycle. What kind of organic compound is glucose?
  7. In what organelle does photosynthesis occur?
  8. What energy is used to “drive” photosynthesis?
  9. What process provides most of the energy used by living things on Earth?
Down
  1. The chemicals that go-into a chemical reaction.
  2. What is the name for C6H12O6?
  3. In which part of the chloroplast do the Light Reactions occur?
  4. A series of molecules that pass high-energy electrons from molecule to molecule and capture their energy.
  5. Organisms that uses chemical energy instead of light energy to make its food.
  6. One of the two main processes involved in photosynthesis?
  7. Organisms that produce their own food.
  8. In which part of the chloroplast does the Calvin Cycle occur?

17 Clues: What is the name for C6H12O6? • Organisms that produce their own food. • In what organelle does photosynthesis occur? • What energy is used to “drive” photosynthesis? • The chemicals that go-into a chemical reaction. • The chemicals that come-out of a chemical reaction. • One of the two main processes involved in photosynthesis? • ...

THERMODYNAMICS 2025-04-24

THERMODYNAMICS crossword puzzle
Across
  1. Energy associated with the movement of these particles and is directly related to an object's temperature
  2. Energy cannot be created or destroyed, only transformed from one form to another
  3. Energy an object possesses due to its motion
  4. Amount of energy released or absorbed during a chemical reaction at a constant pressure
  5. Reactions absorb heat from their surroundings
  6. Form of energy that transfers from an object with higher temperature to an object with lower temperature
  7. Two objects in contact have reached the same temperature, and therefore, no net heat transfer occurs between them
  8. Difference in heat content between the products and reactants of a chemical reaction
  9. Refers to the different physical forms in which matter can exist
Down
  1. Stored energy that an object has due to its position, condition, or internal state
  2. Average kinetic energy of the particles within a substance
  3. Measure of a bond's strength
  4. Deals with heat, work and temperature
  5. Device used to measure the amount of heat involved in a chemical or physical process
  6. Weak forces of attraction that exist between molecules
  7. Reactions release heat to their surroundings

16 Clues: Measure of a bond's strength • Deals with heat, work and temperature • Energy an object possesses due to its motion • Reactions release heat to their surroundings • Reactions absorb heat from their surroundings • Weak forces of attraction that exist between molecules • Average kinetic energy of the particles within a substance • ...

Unit 1 Matter and Periodic Table 2023-08-18

Unit 1 Matter and Periodic Table crossword puzzle
Across
  1. describes the ability of a substance to undergo a chemical change or reaction
  2. mixture of substances that is uniform in composition throughout; cannot see individual substances
  3. vertical column on the Periodic Table
  4. where a quantity or multiple quantities can enter or leave the system
  5. pure substance composed of 2 or more different types of atoms in fixed proportions
  6. a combination of 2 or more elements or compounds which have not reacted together and each part retains its own properties
  7. horizontal row on the Periodic Table
  8. pure substances composed of only one type of atom
Down
  1. a formation of a new substance after atoms are rearranged in a chemical reaction
  2. where a quantity or multiple quantities cannot enter or leave the system
  3. the portion of the universe that is being studied
  4. characteristic of a substance that can be observed or measured without changing the identity of the substance
  5. mixture of substances that is not uniform throughout; can see individual substances
  6. no new substance is formed just a change in amount,texture, form, or state
  7. the portion of the universe that is outside the system

15 Clues: horizontal row on the Periodic Table • vertical column on the Periodic Table • the portion of the universe that is being studied • pure substances composed of only one type of atom • the portion of the universe that is outside the system • where a quantity or multiple quantities can enter or leave the system • ...

unit 13 Bethany 2019-10-06

unit 13 Bethany crossword puzzle
Across
  1. A+B=AB
  2. common chemical change indication
  3. allows for a reaction to take place faster
  4. AB=A+B
  5. reaction that absorbs energy
Down
  1. reaction with a release of energy
  2. seawater on the Ph scale
  3. lemon juice on the Ph scale
  4. CH4+O2=H2O+energy

9 Clues: A+B=AB • AB=A+B • CH4+O2=H2O+energy • seawater on the Ph scale • lemon juice on the Ph scale • reaction that absorbs energy • reaction with a release of energy • common chemical change indication • allows for a reaction to take place faster

Chemical Bonds 2021-10-28

Chemical Bonds crossword puzzle
Across
  1. a process in which one or more substances are converted to one or more different substances
  2. a chemical reaction that takes in energy from the surroundings.
  3. an electron that 'lives' in the last electron shell
  4. a change that changes the identity of the matter
  5. groups of atoms held together by chemical bonds.
  6. the smallest building blocks of matter that determine the identity of the elements.
Down
  1. a formula that tells you have many elements and atoms are in a substance.
  2. chemical reaction where the substances reacting release energy as heat
  3. used to break bonds in reactants
  4. the links between atoms in a substance that determine its identity.
  5. a subatomic particle that's negatively charged

11 Clues: used to break bonds in reactants • a subatomic particle that's negatively charged • a change that changes the identity of the matter • groups of atoms held together by chemical bonds. • an electron that 'lives' in the last electron shell • a chemical reaction that takes in energy from the surroundings. • ...

Photosynthesis & Respiration 2025-12-22

Photosynthesis & Respiration crossword puzzle
Across
  1. The green pigment in plants that absorbs sunlight
  2. The part of a plant cell where photosynthesis happens
  3. An organism that makes its own food
  4. The process plants use to make food using light, carbon dioxide, and water
  5. A substance used up in a chemical reaction
  6. A substance that gives color and absorbs light
  7. A substance plants store extra glucose as
Down
  1. A nutrient that provides energy, such as sugars and starch
  2. Tiny openings in leaves that allow gas exchange
  3. A nutrient needed for growth and repair
  4. The process by which living things release energy from food
  5. An organism that gets energy by eating other organisms
  6. A substance made in a chemical reaction
  7. A sugar made during photosynthesis

14 Clues: A sugar made during photosynthesis • An organism that makes its own food • A nutrient needed for growth and repair • A substance made in a chemical reaction • A substance plants store extra glucose as • A substance used up in a chemical reaction • A substance that gives color and absorbs light • Tiny openings in leaves that allow gas exchange • ...

Science words 2022-09-14

Science words crossword puzzle
Across
  1. a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms.
  2. a volatile chemical compound that humans and other animals perceive via the sense of smell or olfaction.
  3. a process that leads to the chemical transformation of one set of chemical substances to another.
  4. to become broken up or absorbed by something or to disappear into something else.
  5. a substance that takes part in and undergoes change during a reaction.
  6. a measure of a fluid's resistance to flow.
  7. one of the distinct forms in which matter can exist. Four states of matter are observable in everyday life like solid, liquid, gas, and plasma.
  8. a liquid chemical containing hydrogen and oxygen and used for bleaching and as an antiseptic.
Down
  1. a form of matter having constant chemical composition and characteristic properties.
  2. the species formed from chemical reactions.
  3. the smallest unit of ordinary matter that forms a chemical element.
  4. the characteristics that enable us to differentiate one material from another.
  5. a group of two or more atoms held together by attractive forces known as chemical bonds.
  6. mass of a unit volume of a material.
  7. is the quality of burning or igniting easily in air.
  8. a colorless odorless gaseous chemical element that makes up 78 percent of the atmosphere.
  9. a material made up of two or more different chemical substances which are not chemically bonded.
  10. a chemical element that constitutes 21 percent of the Earth's atmosphere.

18 Clues: mass of a unit volume of a material. • a measure of a fluid's resistance to flow. • the species formed from chemical reactions. • is the quality of burning or igniting easily in air. • the smallest unit of ordinary matter that forms a chemical element. • a substance that takes part in and undergoes change during a reaction. • ...

Energy Vocabulary Review 2025-05-19

Energy Vocabulary Review crossword puzzle
Across
  1. Unit to measure mass
  2. Pull of an object based on its mass
  3. Energy required to begin a chemical reaction
  4. Process that releases chemical potential energy
  5. how strongly an object pulls
  6. Unit to measure distance
  7. Energy stored in chemical bonds
  8. substance that lowers activation energy
  9. Energy required to change the temperature
  10. Used to determine heat absorbed or released by a process
Down
  1. Process that absorbs chemical potential energy
  2. Energy stored by gravity's pull
  3. How fast an object is moving
  4. Distance above the ground
  5. Ratio that determines how much energy is required to change the temperature of a substance
  6. The ability to perform a task
  7. Property type that energy is
  8. Measure of average kinetic energy of all particles in a substance
  9. Unit energy is measured in
  10. Process that turns kinetic energy into heat
  11. Energy of Motion
  12. Unit for Temperature
  13. The ability to change the amount of energy present in a system
  14. Amount of matter in a substance
  15. process that changes the chemical potential energy of a substance

25 Clues: Energy of Motion • Unit to measure mass • Unit for Temperature • Unit to measure distance • Distance above the ground • Unit energy is measured in • How fast an object is moving • how strongly an object pulls • Property type that energy is • The ability to perform a task • Energy stored by gravity's pull • Amount of matter in a substance • Energy stored in chemical bonds • ...

Chemical change 2025-12-20

Chemical change crossword puzzle
Across
  1. The starting substance in a chemical reaction
  2. An element on the left or bottom of the periodic table
  3. A chemical reaction where oxygen is added to a metal
Down
  1. A chemical reaction where oxygen is removed from a compound
  2. An element of the top right hand side of the periodic table
  3. The substances that are made in a chemical reaction

6 Clues: The starting substance in a chemical reaction • The substances that are made in a chemical reaction • A chemical reaction where oxygen is added to a metal • An element on the left or bottom of the periodic table • A chemical reaction where oxygen is removed from a compound • An element of the top right hand side of the periodic table

Module 6 vocabulary - Photosynthesis 2023-11-06

Module 6 vocabulary - Photosynthesis crossword puzzle
Across
  1. process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches
  2. respiration that requires oxygen
  3. process that releases energy by breaking down glucose and other food molecules in the presence of oxygen
  4. respiration that does not require oxygen
  5. an organism that makes its own food
  6. an organelle found in plant and algae cells where photosynthesis occurs
  7. a chemical substance that is present at the start of a chemical reaction
Down
  1. the anaerobic process by which yeasts and other microorganisms break down sugars to form carbon dioxide and ethanol
  2. powerhouse of the cell, organelle that is the site of ATO (energy) production
  3. sugar manufactured during photosynthesis, main source of energy for plants and animals, metabolized during cellular respiration
  4. this happens when muscle cells use up oxygen faster that it can be replaced
  5. the small openings on the undersides of most leaves through which oxygen and carbon dioxide can move
  6. adenosine triphosphate, an organic molecule that acts as the main energy source for cell processes
  7. a chemical substance formed as a result of a chemical reaction
  8. an organism that cannot make its own food

15 Clues: respiration that requires oxygen • an organism that makes its own food • respiration that does not require oxygen • an organism that cannot make its own food • a chemical substance formed as a result of a chemical reaction • an organelle found in plant and algae cells where photosynthesis occurs • ...

Stoich Practice 2023-03-24

Stoich Practice crossword puzzle
Across
  1. The mass of a single element or compound in one mole.
  2. The amount of moles in 32 g of oxygen (1 sig fig)
  3. How we measure the mass of a molecule
  4. The amount of a particular elements or molecules in a chemical equation.
  5. A way to changing from one set of units to another
  6. A group of two or more atoms
  7. The chemical formula for an ionic compound
  8. The number in front of a chemical equation, used to balance
  9. Equal to 6.02x10^23 particles
  10. The amount of mass that is in the reactions should match the amount of mass in the products.
Down
  1. A chemical equation that has the same amount of each element on both sides of the equation.
  2. The mass of all the protons, neutrons, and electrons in an element
  3. The relationship between the amount of substances in a chemical reaction
  4. The amount of molecules in one mole.
  5. A basic unit of a chemical element
  6. The amount of moles in 126 g of water (1 sig fig)
  7. The relationship between the amount of moles in a chemical reactio

17 Clues: A group of two or more atoms • Equal to 6.02x10^23 particles • A basic unit of a chemical element • The amount of molecules in one mole. • How we measure the mass of a molecule • The chemical formula for an ionic compound • The amount of moles in 32 g of oxygen (1 sig fig) • The amount of moles in 126 g of water (1 sig fig) • ...

Chemical Bonding 2021-06-09

Chemical Bonding crossword puzzle
Across
  1. Made up or consisting of two or more existing parts or elements.
  2. A chemical bond between two atoms involving six bonding electrons instead of the usual two in a covalent single bond.
  3. A subatomic particle with a negative charge.
  4. A type of covalent bond between two atoms in which electrons are shared unequally.
  5. Any substance that cannot be decomposed into simpler substances by ordinary chemical processes.
  6. A formula where it identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element.
  7. A chemical rule of thumb that reflects the theory that main-group elements tend to bond in such a way that each atom has eight electrons in its valence shell.
  8. A covalent bond between two atoms involving four bonding electrons as opposed to two in a single bond.
  9. An element that readily forms positive ions (cations) and has metallic bonds.
Down
  1. The mass of an atom of a chemical element expressed in atomic mass units.
  2. A chemical element that mostly lacks the characteristics of a metal.
  3. A force of attraction that holds atoms or ions together in a molecule or crystal.
  4. A Chemical element with the symbol O
  5. A chemical bond is a lasting attraction between atoms ions or molecules that enables the formation of chemical compounds.
  6. An atom or group of atoms carrying a negative electric charge.
  7. A positively charged ion.
  8. A process in which a chemical substance changes because of the addition of oxygen.
  9. Is an outer shell electron that is associated with an atom.
  10. A substance that is present at the start of a chemical reaction.
  11. A structure or diagram that represents the valence electrons of atoms within a molecule.

20 Clues: A positively charged ion. • A Chemical element with the symbol O • A subatomic particle with a negative charge. • Is an outer shell electron that is associated with an atom. • An atom or group of atoms carrying a negative electric charge. • Made up or consisting of two or more existing parts or elements. • ...

CROSSWORD PUZZLE - PHYSICAL AND CHEMICAL CHANGES 2023-08-07

CROSSWORD PUZZLE - PHYSICAL AND CHEMICAL CHANGES crossword puzzle
Across
  1. A physical change for only sometime
  2. A chemical change taking place forever
  3. The rusting of iron is a chemical change that is
  4. A change in which the original substance cannot be got back
  5. This change is observed when a piece of magnesium wire is burnt
Down
  1. A change we do not like
  2. Reaction of strong acid with water is an example of _______ reaction in terms of absorption or release of heat
  3. A change in which the original substance can be got back
  4. A change that occurs again and again
  5. A change in which new substance is formed

10 Clues: A change we do not like • A physical change for only sometime • A change that occurs again and again • A chemical change taking place forever • A change in which new substance is formed • The rusting of iron is a chemical change that is • A change in which the original substance can be got back • A change in which the original substance cannot be got back • ...

Chemistry energetics 2023-04-17

Chemistry energetics crossword puzzle
Across
  1. dilution means that any further dilution of the solution produces no enthalpy
  2. form of energy that flows from sth at a higher temperature to sth at a lower temperature
  3. heat capacity is the energy required to raise the temperature of 1g of a substance by 1K or 1 C
  4. if the products have... Energy than reactants, they are more stable
  5. when bonds are breaking the reaction is...
  6. enthalpy when 1 mol of covalent bonds in a gaseous molecule is broken at stp
Down
  1. is the basic technique used to measure enthalpy change of combustion
  2. enthalpy change of... Is the enthalpy change when 1 mole of water molecules are formed when an acid (H+)reacts with an alkali (OH-) at STP
  3. when bonds are forming the reaction is...
  4. law states that the enthalpy change accompanying a chemical reaction is independent of the pathway between the initial and final states
  5. measure of the average kinetic energy of particles
  6. other word for chemical reaction

12 Clues: other word for chemical reaction • when bonds are forming the reaction is... • when bonds are breaking the reaction is... • measure of the average kinetic energy of particles • if the products have... Energy than reactants, they are more stable • is the basic technique used to measure enthalpy change of combustion • ...

Enthalpy 2022-01-13

Enthalpy crossword puzzle
Across
  1. a push or a pull
  2. Do these increase or decrease a reaction rate: stirring, adding heat, adding a catalyst, increasing the concentration
  3. Do these increase or decrease a reaction rate: cooling down, adding water, adding less reactants
  4. The change in heat.
  5. the rate at which an object speeds up or slows down.
  6. Newtons law that states force is equal to the change in momentum per the change in time.
  7. Newtons law that states an object at rest will stay at rest and an object in motion will stay in motion.
  8. Newtons law that states forces always come in pairs, equal in size, and opposite in direction.
Down
  1. a chemical used to speed up a reaction.
  2. speed
  3. The release of heat leaving the surrounds warmer.
  4. mass in motion
  5. The Conservation of ___ states that a substance cannot be created or destroyed.
  6. the molecules that come out of a reaction.
  7. 6.02 x 10^23 atoms
  8. The absorption of heat leaving the surrounds colder.
  9. the molecules that go in to a reaction.

17 Clues: speed • mass in motion • a push or a pull • 6.02 x 10^23 atoms • The change in heat. • a chemical used to speed up a reaction. • the molecules that go in to a reaction. • the molecules that come out of a reaction. • The release of heat leaving the surrounds warmer. • the rate at which an object speeds up or slows down. • The absorption of heat leaving the surrounds colder. • ...

Unit 2 Vocabulary: Chemistry in Living Systems 2023-09-28

Unit 2 Vocabulary: Chemistry in Living Systems crossword puzzle
Across
  1. two or more atoms held together by covalent bonds
  2. A three dimensional polymer made of monomers of amino acids.
  3. A long molecule consisting of many similar or identical monomers linked together.
  4. Smallest particle of an element
  5. substance formed by the chemical combination of two or more elements in definite proportions
  6. A molecule that is a constituent of the inner bilayer of biological membranes, having a polar, hydrophilic head and a nonpolar, hydrophobic tail.
  7. (adenosine triphosphate) main energy source that cells use for most of their work
  8. the process by which one or more substances change to produce one or more different substances
  9. the starches and sugars present in foods
  10. A type of protein that speeds up a chemical reaction in a living thing
Down
  1. A substance that cannot be broken down into simpler substances
  2. A cell structure that controls which substances can enter or leave the cell.
  3. building blocks of proteins
  4. Compounds composed of only carbon and hydrogen
  5. substance that speeds up the rate of a chemical reaction
  6. An atom or group of atoms that has a positive or negative charge.

16 Clues: building blocks of proteins • Smallest particle of an element • the starches and sugars present in foods • Compounds composed of only carbon and hydrogen • two or more atoms held together by covalent bonds • substance that speeds up the rate of a chemical reaction • A three dimensional polymer made of monomers of amino acids. • ...

THERMODYNAMICS 2025-04-24

THERMODYNAMICS crossword puzzle
Across
  1. Energy associated with the movement of these particles and is directly related to an object's temperature
  2. Energy cannot be created or destroyed, only transformed from one form to another
  3. Energy an object possesses due to its motion
  4. Amount of energy released or absorbed during a chemical reaction at a constant pressure
  5. Reactions absorb heat from their surroundings
  6. Form of energy that transfers from an object with higher temperature to an object with lower temperature
  7. Two objects in contact have reached the same temperature, and therefore, no net heat transfer occurs between them
  8. Difference in heat content between the products and reactants of a chemical reaction
  9. Refers to the different physical forms in which matter can exist
Down
  1. Stored energy that an object has due to its position, condition, or internal state
  2. Average Kinetic Energy of the particles within a substance
  3. Measure of a bond's strength
  4. Deals with heat, work and temperature
  5. Device used to measure the amount of heat involved in a chemical or physical process
  6. Weak forces of attraction that exist between molecules
  7. Reactions releases heat to their surroundings

16 Clues: Measure of a bond's strength • Deals with heat, work and temperature • Energy an object possesses due to its motion • Reactions absorb heat from their surroundings • Reactions releases heat to their surroundings • Weak forces of attraction that exist between molecules • Average Kinetic Energy of the particles within a substance • ...

Chemistry 2021-10-18

Chemistry crossword puzzle
Across
  1. Ancient Greek pre-Socratic philosopher primarily remembered today for his formulation of an atomic theory of the universe
  2. A change that occurs when a sample of matter changes one or more of its physical properties
  3. way of presenting information about the chemical proportions of atoms
  4. heat energy is released
  5. the chemical element with the symbol H
  6. The connection between two atoms in a molecule
  7. The smallest piece of an element that maintains the identity of that element
  8. Atoms of the same element that have different numbers of neutrons
  9. a tabular display of the chemical elements
Down
  1. The range of values from 0 to 14 that describes the acidity or basicity of a solution
  2. a chemical reaction in which one element is replaced by another in a compound
  3. defined as the exact opposite of chemical synthesis
  4. chemical element with the symbol O
  5. chemical bond in which two ions are joined together
  6. a chemical element with the symbol Na

15 Clues: heat energy is released • chemical element with the symbol O • a chemical element with the symbol Na • the chemical element with the symbol H • a tabular display of the chemical elements • The connection between two atoms in a molecule • defined as the exact opposite of chemical synthesis • chemical bond in which two ions are joined together • ...

Chemical equations 2021-04-14

Chemical equations crossword puzzle
Across
  1. change
  2. equation: unequal numbers at least one atom on each side of the arrow
  3. anything that takes up space or mass
  4. of Mass: Mass cannot be created or destroyed
Down
  1. equation: reactant entities are on the left , product entities are on the right
  2. amount of matter in an object
  3. equation: has equal numbers of each type of atom on each side of the equation
  4. No mass was created or destroyed during chemical equation
  5. substance after chemical equal
  6. indicator of chemical change
  7. substance before chemical equation

11 Clues: change • indicator of chemical change • amount of matter in an object • substance after chemical equal • substance before chemical equation • anything that takes up space or mass • of Mass: Mass cannot be created or destroyed • No mass was created or destroyed during chemical equation • equation: unequal numbers at least one atom on each side of the arrow • ...

Juliana Roman 2019-06-12

Juliana Roman crossword puzzle
Across
  1. Positively charged ions
  2. Helium is this class of element
  3. AB->A+B
  4. Atoms with a charge (+or-)
  5. The principal that bonded atoms share their outer electrons
  6. Has two oxygen on the reactant side and H2O on the product side
  7. AB+CD->CB+AD
  8. A balenced equations shows equal___on both sides
  9. Shows a substance using symbols for elements
  10. .H.
  11. Name for -> in chemical equation
  12. Lithium is this class of element
  13. A substance that conducts electricity when dissolved in water
  14. Ending materials in a chemical equation
Down
  1. Negatively charged ions
  2. Forms between a metal and a nonmetal
  3. The starting materials in a chemical reaction
  4. The electrons in the outermost principal energy level (last digit of the family #)
  5. A substance that is not conductive
  6. Forms between 2 nonmetals
  7. A+BC->B+AC
  8. 2HO
  9. CO (naming compounds)
  10. A chemical equation that has the same amount of atoms on both sides
  11. A+B->AB
  12. A group of atoms bonded together representing the smallest fundamental unit of a chemical compound
  13. A ion made up of 2 or more atoms

27 Clues: 2HO • .H. • AB->A+B • A+B->AB • A+BC->B+AC • AB+CD->CB+AD • CO (naming compounds) • Negatively charged ions • Positively charged ions • Forms between 2 nonmetals • Atoms with a charge (+or-) • Helium is this class of element • A ion made up of 2 or more atoms • Name for -> in chemical equation • Lithium is this class of element • A substance that is not conductive • ...

Rock Types and Acid Precipitation 2025-02-12

Rock Types and Acid Precipitation crossword puzzle
Across
  1. the chemical formula of silicon dioxide
  2. a materials resistance to flow
  3. the most common sedimentary rocks
  4. a reversible change when appearance is altered, but the chemical composition remains the same
  5. anything that has mass and takes up space
  6. a type of rock formed from sediments
  7. the chemical formula of sulfur dioxide
  8. the gaseous form of water
  9. a type of rock formed from molten magma
  10. the transport and removal of sediments
  11. magma that flows onto Earth's surface
  12. a valuable mineral found in rare basaltic rock known as kimberlite
  13. a irreversible change where the chemical composition is changed
  14. a process that transforms sediments in to sedimentary rocks
  15. occurs when mineral growth glues sediments together to form solid rock
Down
  1. a nonrenewable energy resource formed from the decomposition of organisms
  2. dead remains of once living organisms
  3. a important agent of weathering and erosion because it can dissolve any rock or mineral
  4. occur when magma cools and crystalizes below Earth's surface
  5. a set of physical and chemical processes that breaks rock into smaller pieces
  6. the chemical reaction of oxygen with other substances
  7. large masses of ice that move across land
  8. the molten material found underneath Earth's crust
  9. the chemical formula of water
  10. the most abundant element found in magma
  11. the chemical formula of carbon dioxide

26 Clues: the gaseous form of water • the chemical formula of water • a materials resistance to flow • the most common sedimentary rocks • a type of rock formed from sediments • dead remains of once living organisms • magma that flows onto Earth's surface • the chemical formula of sulfur dioxide • the transport and removal of sediments • the chemical formula of carbon dioxide • ...

Unit 4 test 2022-11-15

Unit 4 test crossword puzzle
Across
  1. A type of anaerobic respiration where alcohol is made
  2. Studies conducted since the 1970s habe shown that MTBE can cause _____ in laboratory animals, and scientists fear that MTBE could jeopardize human health as well
  3. Electricity is transmitted through a power ____
  4. chemical reaction where heat is given off
  5. By 2009, 87% of the new cars sold in ___ were capable of running on ethanol
  6. What comes out of a chemical reaction
  7. using large quantities of organic material
  8. mountaintops are being blasted flat to build these
  9. In lab we found that ____ burns better than ethanol due to all of its atomic bonds
  10. substance that is dissolbed in a liquid to make a solution
  11. panels it uses a lot of fossil fuels to make the parts for these
  12. alternative energy that burns a gas, but only exhaust is water
  13. using movement of air to turn a turbine
  14. The universal solvent
  15. There are economic,social, political, and enviornmental _______ involved in the decision to use food prodicts to produce ethanol fuel
  16. a 2ring sugar that can be fermented into alcohol
  17. water is so good at dissolving stuff because it is _____
  18. In the biomass study done by Gregg Sanford, it was found that _____ could be grown and yeild about the same amount of biomass as corn
  19. a solvent+a solute
Down
  1. One way to use hydrogen is to put it in a ______
  2. As an automobile fuel, ethanol burns much_____than gasoline
  3. using heat inside the earth
  4. Alternative energy with the downside of radioactive waste
  5. A pronlem with modern farming techniques is that the ____ deteriotates by "minning" its nutrients and increasing erosion
  6. Energy of combustion is released by breaking and reforming chemical _____
  7. Reading "between the dots" on a set of graphed data
  8. Because of the consistent rise in the price of ________ ober the past decade, ethanol is becoming more cost-competitive with gasonline every year
  9. a simple sugar that can be fermented into alcohol
  10. Extending a line on a graph past where data exists to predict a trend
  11. currently a lot of wood is being used, destroying forests
  12. The majority of our energy today comes from
  13. fungus that turns sugars into alcohol
  14. chemical reaction where heat is sucked in
  15. What goes into a chemical reaction
  16. using flow of water to turn a turbine
  17. one of the main crops used in america to make ethanol
  18. Alcohol made from biomass and can be used as fuel
  19. using sunlight
  20. One way to make electricity directly from sunlight is through a _____ panel
  21. Liquid that dissolves a substance a solution

40 Clues: using sunlight • a solvent+a solute • The universal solvent • using heat inside the earth • What goes into a chemical reaction • What comes out of a chemical reaction • fungus that turns sugars into alcohol • using flow of water to turn a turbine • using movement of air to turn a turbine • chemical reaction where heat is given off • chemical reaction where heat is sucked in • ...

Nevaeh 2022-03-08

Nevaeh crossword puzzle
Across
  1. mass of 1 mole of a substance
  2. maximum amount of product that can be produced based on the limiting reactant
  3. multiple of an empirical formula
  4. a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
Down
  1. occupied by one mole of it at a given temperature and pressure
  2. reactant that runs out first in a chemical reaction
  3. proportions of reactants and products that are used and formed in a chemical reaction
  4. symbolic representation of a chemical reaction in the form of symbols and formula
  5. a formula giving the number of atoms of each of the elements present in one molecule of a specific compound
  6. actual yield divided by the theoretical yield times 100

10 Clues: mass of 1 mole of a substance • multiple of an empirical formula • reactant that runs out first in a chemical reaction • actual yield divided by the theoretical yield times 100 • occupied by one mole of it at a given temperature and pressure • maximum amount of product that can be produced based on the limiting reactant • ...

Bio 3 chapter 6 vocab 2021-09-16

Bio 3 chapter 6 vocab crossword puzzle
Across
  1. process in which organisms convert energy for their use in the absence of oxygen
  2. process in which organisms convert energy in the presence of oxygen
  3. combination of an acetyl group derived from pyruvic acid and coenzyme A, which is made from pantothenic acid (a B-group vitamin)
  4. production of ATP from ADP using the excess energy from a chemical reaction and a phosphate group from a reactant
  5. process that does not use oxygen
  6. (also citric acid cycle) alternate name for the citric acid cycle, named after the group name for citric acid, tricarboxylic acid (TCA); see citric acid cycle
  7. Krebs cycle) series of enzyme-catalyzed chemical reactions of central importance in all living cells for extraction of energy from carbohydrates
  8. removal of a phosphate group from a molecule
  9. soluble electron transporter in the electron transport chain that connects the first or second complex to the third
Down
  1. chemical reaction that consists of the coupling of an oxidation reaction and a reduction reaction
  2. enzyme that converts a molecule into its isomer
  3. process in which there is a production of adenosine triphosphate (ATP) in cellular metabolism by the involvement of a proton gradient across a membrane
  4. addition of a high-energy phosphate to a compound, usually a metabolic intermediate, a protein, or ADP
  5. F1F0 ATP synthase) membrane-embedded protein complex that adds a phosphate to ADP with energy from protons diffusing through it
  6. process of regenerating NAD+ with either an inorganic or organic compound serving as the final electron acceptor; occurs in the absence of oxygen
  7. three-carbon sugar that can be decarboxylated and oxidized to make acetyl CoA, which enters the citric acid cycle under aerobic conditions; the end product of glycolysis
  8. (also prosthetic cofactor) molecule bound to a protein that facilitates the function of the protein
  9. process of breaking glucose into two three-carbon molecules with the production of ATP and NADH

18 Clues: process that does not use oxygen • removal of a phosphate group from a molecule • enzyme that converts a molecule into its isomer • process in which organisms convert energy in the presence of oxygen • process in which organisms convert energy for their use in the absence of oxygen • ...

Cellular Respiration 2021-05-31

Cellular Respiration crossword puzzle
Across
  1. product of cellular respiration
  2. sugar molecule used to produce usable energy
  3. site of photosynthesis in plant cells
  4. inputs of a chemical equation
  5. process that does not require oxygen
Down
  1. reaction written with chemical symbols of molecules
  2. where the first step of cellular respiration occurs
  3. outputs of a chemical equation
  4. where most ATP is created
  5. process in plants that produces glucose and oxygen
  6. energy molecule used by cells
  7. required for photosynthesis to take place
  8. process that requires oxygen

13 Clues: where most ATP is created • process that requires oxygen • energy molecule used by cells • inputs of a chemical equation • outputs of a chemical equation • product of cellular respiration • process that does not require oxygen • site of photosynthesis in plant cells • required for photosynthesis to take place • sugar molecule used to produce usable energy • ...

GAW LAWS VOCABULARY 2016-05-15

GAW LAWS VOCABULARY crossword puzzle
Across
  1. the SI unit of energy and of heat
  2. the heat content of a system at constant pressure
  3. states that the volume of a given mass of gas at a constant pressure varies directly as its absolute temperature
  4. is often used for measuring gas density and volume
  5. the lowest temperature that is theoretically possible, at which the motion of particles that constitutes heat would be minimal
  6. a physical constant which is featured in many fundamental equations in the physical sciences
  7. energy that is in the process of flowing from a warmer object to a cooler object
  8. of a reaction or process accompanied by or requiring the absorption of heat
  9. pressure and volume are inversely proportional if moles and temperature are constant
  10. energy that is stored within an object, not in motion but capable of becoming active
  11. energy of motion, observable as the movement of an object, particle, or set of particles
Down
  1. the volume occupied by one mole of a substance at a given temperature and pressure
  2. used to describe a reaction or process that releases energy in the form of heat
  3. states that the product of the pressure and the volume of one gram molecule of an ideal gas is equal to the product of the absolute temperature of the gas and the universal gas consta
  4. states that the volumes of gases undergoing a reaction at constant pressure and temperature are in a simple ratio to each other and to that of the product
  5. the ability to do work
  6. states that in any chemical reaction or physical process energy can be converted from one form to another, but it is neither created nor destroyed
  7. the amount of heat required to raise the temperature of one gram of that substance by one degree Celsius
  8. a measure of the average kinetic energy of atoms or molecules
  9. used for measuring the amount of heat involved in a chemical reaction or other process

20 Clues: the ability to do work • the SI unit of energy and of heat • the heat content of a system at constant pressure • is often used for measuring gas density and volume • a measure of the average kinetic energy of atoms or molecules • of a reaction or process accompanied by or requiring the absorption of heat • ...

cosmetology, chem game 2023-12-15

cosmetology, chem game crossword puzzle
Across
  1. determind without a chemical reaction
  2. cannot be reduced without loss of identity
  3. a chemical combination of matter in fixed proportions
  4. form in changed without becoming a new substance
  5. an ion with a negative electrical charge
  6. a chemical combination of two or more atoms in definite proportions
  7. occupies space and has mass
  8. the basic unit of matter
Down
  1. change in the chemical composition or makeup of a substance
  2. rapid oxidation of a substance accompanied by the production of heat and light
  3. these are chemical compounds of two or more atoms
  4. a chemical combination of atoms of the same element, in fixed proportions
  5. determind without a chemical reaction
  6. physical combination of matter in fixed proportions
  7. the science that deals with the composition, structures, and proper-ties of matter and how matter changes under differnet conditions

15 Clues: the basic unit of matter • occupies space and has mass • determind without a chemical reaction • determind without a chemical reaction • an ion with a negative electrical charge • cannot be reduced without loss of identity • form in changed without becoming a new substance • these are chemical compounds of two or more atoms • ...

Biochemistry/ Macro Molecules 2013-12-14

Biochemistry/ Macro Molecules crossword puzzle
Across
  1. __________, electrons and protons
  2. A a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion (two words
  3. Large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose.
  4. the minimum amount of energy needed for reactants to form products in a chemical reaction is called _______ energy. (starts with an a)
  5. Protons have a ________ charge
  6. a pure substance formed when 2 or more different elements combine
  7. Proteins are made up of small carbon compounds called ________________
  8. A pure substance that cannot be broken down into other substances by physical or chemical means
Down
  1. chemical bonds are _______ during chemical reactions
  2. Organic compounds that consist of many nucleotides linked in a long chain.
  3. Atoms of the same element that have different number of neutrons
  4. Neutrons have ______ charge
  5. A chemical bond that involves sharing a pair of electrons between atoms in a molecule (two words)
  6. breaking chemical bonds _______ energy (starts with an r)
  7. forming chemical bonds ______ energy
  8. Organic compounds that consist of large molecules composed of one or more long chains of amino acids
  9. Organic compounds that are fatty acids
  10. Lipids are made up of 3 ________ and 1 Glycerol
  11. Protons, neutrons and electrons are ________ meaning particles smaller than the atom
  12. Electrons have a ____________
  13. Nucleic Acids store and transmit ________ information

21 Clues: Neutrons have ______ charge • Electrons have a ____________ • Protons have a ________ charge • __________, electrons and protons • forming chemical bonds ______ energy • Organic compounds that are fatty acids • Lipids are made up of 3 ________ and 1 Glycerol • chemical bonds are _______ during chemical reactions • Nucleic Acids store and transmit ________ information • ...

Chemistry Unit 5 Vocab 2022-11-21

Chemistry Unit 5 Vocab crossword puzzle
Across
  1. The little number on the right side of a symbol which represents the amount of atoms in the element.
  2. The breaking down of reactants which form into basic products.
  3. Two elements/compounds change places.
  4. The number of molecules in an equation.
  5. An element with only two atoms.
Down
  1. A hydrocarbon reacts with oxygen, usually resulting in heat, CO2, or H20.
  2. The combination of elements.
  3. An element changes spots with another element.
  4. The transferring of electrons, one metal and one nonmetal.
  5. An atom that gained or lost an electron.
  6. The result of a chemical reaction.
  7. The combination of elements to create a product.
  8. The transferring of electrons in nonmetals.
  9. The beginning substance in a chemical reaction.

14 Clues: The combination of elements. • An element with only two atoms. • The result of a chemical reaction. • Two elements/compounds change places. • The number of molecules in an equation. • An atom that gained or lost an electron. • The transferring of electrons in nonmetals. • An element changes spots with another element. • The beginning substance in a chemical reaction. • ...

Reactions 2021-07-19

Reactions crossword puzzle
Across
  1. What is methane ?
  2. Conservation of mass is a what change ?
  3. In thermal decomposition a single compound breaks down into simpler compounds and what ?
  4. Magnesium oxide, nitrogen dioxide and oxygen are a reaction from what ? (9,7)
  5. Combustion is a what change ?
  6. Exothermic changes are what type of changes ?
Down
  1. If you heat copper carbonate what happens ?(6,4)
  2. word equation- nitrogen+ oxygen -> nitrogen ...
  3. What is the name of this chemical formula, CH4 ?
  4. What do you use to heat things in experiments ?(6,6)
  5. When a combustion reaction takes place what is the energy transferred as ? (4,3,5)
  6. Using an ice pack it is a what change ?
  7. Melting and what are endothermic changes ?
  8. What do two elements joined together make ?

14 Clues: What is methane ? • Combustion is a what change ? • Using an ice pack it is a what change ? • Conservation of mass is a what change ? • Melting and what are endothermic changes ? • What do two elements joined together make ? • Exothermic changes are what type of changes ? • word equation- nitrogen+ oxygen -> nitrogen ... • If you heat copper carbonate what happens ?(6,4) • ...

Chemical Reactions Crossword 2024-02-02

Chemical Reactions Crossword crossword puzzle
Across
  1. an expression made of numbers and symbols that represent the number and types of elements in a compound
  2. a substance made up of entirely one atom
  3. a table of the elements that is arranged in order of atomic number
  4. anything that has mass and volume
  5. a substance made up of two or more elements
  6. a process in which two reactants interact to form new substances with different molecular structures with different properties.
  7. an end substance of a chemical reaction
  8. an uncharged particle
  9. the type of mixture whose composition is not evenly mixed or spread out
  10. a group of atoms joined together in a particular way
  11. a physical mix of two or more substances that keep their own properties
  12. the type of mixture that is blended or mixed so well that the substances will not separate out even over time
  13. the small building blocks of matter
  14. a type of matter which has a specific composition and specific properties
  15. the temperature at which a liquid boils into a gas
  16. a specific characteristic of a substance
  17. the temperature at which a solid phase melts into a liquid
Down
  1. a negatively charged particle
  2. the reaction between a substance and air that releases energy in the form of heat and light
  3. has four kinds of states - solid, liquid, gas, and plasma
  4. a change in which the appearance changes but the kind of matter in the substance does not
  5. a change in which products form from reactants and form entirely new substances through rearranging atoms
  6. a substance composed of only one type of atom
  7. a starting substance of a chemical reaction
  8. a positively charged particle
  9. a reaction that absorbs energy and cools its surroundings
  10. the temperature in which a liquid changes into a solid
  11. a reaction that releases energy and heat

28 Clues: an uncharged particle • a negatively charged particle • a positively charged particle • anything that has mass and volume • the small building blocks of matter • an end substance of a chemical reaction • a substance made up of entirely one atom • a reaction that releases energy and heat • a specific characteristic of a substance • a starting substance of a chemical reaction • ...

purity 2025-04-23

purity crossword puzzle
Across
  1. the process of extracting metals from ores using microorganisms
  2. a substance we start with before a chemical reaction takes place
  3. the relatively thin layer of gases that surround planet Earth
  4. experiment being doing several times and giving the same results
  5. arithmetical average of a series of numbers
  6. fuel made from animal or plant products
  7. a substance made only of one type of atom
  8. the process whereby small amounts of dissolved substances are separated by running a solvent along a material such as absorbent paper
  9. unreactive
  10. separation of a liquid from a mixture by evaporation followed by condensation
  11. the breakdown of a product
  12. a substance made as a result of a chemical reaction
  13. the corrosion of iron
Down
  1. when some elements or compounds are mixed together and intermingle but do not react together
  2. a reaction in which oxygen is removed
  3. iron or steel objects that have been protected from rusting by thin layer of zinc metal at their surface
  4. results that do not match the pattern seen in other data collected or are outside the range of the other repeat readings
  5. easy ignited and capable of burning rapidly
  6. a glass tube used to measure accurate volume of liquid
  7. a reaction that transfers energy to the surroundings
  8. a forecast or statement about the way something will happen in the future
  9. a reaction that takes in energy from the surrounding
  10. rock which contains enough metal to make it economically worthwhile to extract the metal
  11. the technique used to separate substances that are insoluble in a particular solvent from those that are soluble
  12. the link between the variables that were investigated
  13. a substance made when two or more elements are chemically bonded together
  14. the process in which waste materials are processed to be used again
  15. the smallest part of an element
  16. a mixture of two or more elements, at least one of which is a metal

29 Clues: unreactive • the corrosion of iron • the breakdown of a product • the smallest part of an element • a reaction in which oxygen is removed • fuel made from animal or plant products • a substance made only of one type of atom • easy ignited and capable of burning rapidly • arithmetical average of a series of numbers • a substance made as a result of a chemical reaction • ...

Chapter 9 Reversible reactions and equilibrium 2022-11-23

Chapter 9 Reversible reactions and equilibrium crossword puzzle
Across
  1. the mixture of reactants and products at which a reversible reaction is in equilibrium under a particular set of physical conditions of temperature and pressure
  2. a system where none of the reactants or products can escape the reaction mixture or the container where the reaction is taking place
  3. fertilisers to provide the elements nitrogen, phosphorus and potassium for improved plant growth
  4. an adjective to describe a substance without water combined with it
  5. a chemical reaction that can go either forwards or backwards, depending on the conditions
  6. a temperature that gives sufficient product and a reasonable and economic rate of reaction
Down
  1. two chemical reactions, one the reverse of the other, taking place at the same time. where the concentrations of the reactants and products remain constant because the rate at which the forward reaction occurs is the same as that of the reverse reaction
  2. the industrial manufacture of sulfuric acid using the raw materials sulfur and air
  3. a fertiliser such as an NPK fertiliser or nitrochalk that contains more than one compound to provide elements to the soil
  4. an industrial process for removing contaminating sulfur from fossil fuels such as petrol (gasoline) or diesel
  5. a substance added to the soil to replace essential elements lost when crops are harvested, which enables crops to grow faster and increases the yield
  6. salts whose crystals contain combined water (water of crystallisation) as part of the structure

12 Clues: an adjective to describe a substance without water combined with it • the industrial manufacture of sulfuric acid using the raw materials sulfur and air • a chemical reaction that can go either forwards or backwards, depending on the conditions • a temperature that gives sufficient product and a reasonable and economic rate of reaction • ...

Chemical Reactions and Equations - MA 1 2021-05-16

Chemical Reactions and Equations - MA 1 crossword puzzle
Across
  1. When aqueous solutions of two compounds react by exchanging their ions to form two new compounds
  2. A reaction in which oxidation and reduction take place simultaneously
  3. Reaction that proceeds with the absorption of energy
  4. Decomposition reaction which proceeds with the absorption of light
  5. Reaction in which two or more substances react chemically to form a single product
  6. Substance which is reduced
Down
  1. A reaction in which a more reactive metal displaces a less reactive metal from its aqueous solution
  2. Decomposition reaction that proceeds with the absorption of electrical energy
  3. When aqueous solution of an acid reacts with a base by exchanging their ions to form salt and water as the only product
  4. loss of electrons
  5. Formation of layers of undesired compounds on the surface of metals
  6. A chemical reaction which proceeds with the release of energy

12 Clues: loss of electrons • Substance which is reduced • Reaction that proceeds with the absorption of energy • A chemical reaction which proceeds with the release of energy • Decomposition reaction which proceeds with the absorption of light • Formation of layers of undesired compounds on the surface of metals • ...

#4 Properties and Changes of Matter Meghan Alexander, 2nd period 2013-09-13

#4 Properties and Changes of Matter Meghan Alexander, 2nd period crossword puzzle
Across
  1. Has a pH above 7 and has a slippery feel and bitter taste
  2. reactions Absorbs thermal energy
  3. The substances that exist before the reaction begins
  4. property Does not change when an object changes size
  5. reactions Releases thermal energy
  6. change Occurs when one type of matter changes into a different type of matter with different properties
  7. change Any change in size, shape, form, or state where the identity of the matter stays the same
Down
  1. The substances that form as a result of the reaction
  2. Property Changes when the size of an object changes
  3. The number of atoms of each element in the compound.
  4. Lavoisier The first modern chemist that used logic and the scientific method to study chemical reactions
  5. Has a pH below 7 and has a sharp smell and sour taste
  6. When balancing chemical equations, numbers are placed before the formulas as did for Ag
  7. of Matter Tells you whether a sample of matter is a solid, liquid, or gas
  8. The amount of mass in a given volume
  9. How easily one thing reacts with something else

16 Clues: reactions Absorbs thermal energy • reactions Releases thermal energy • The amount of mass in a given volume • How easily one thing reacts with something else • Property Changes when the size of an object changes • The substances that form as a result of the reaction • The number of atoms of each element in the compound. • ...

EOC Study Guide #4 2019-11-22

EOC Study Guide #4 crossword puzzle
Across
  1. An electron carrier that transfers some of the energy absorbed from the sun in Light Reactions to the Calvin Cycle.
  2. What process provides most of the energy used by living things on Earth?
  3. In which part of the chloroplast do the Light Reactions occur?
  4. Organisms that produce their own food.
  5. The chemicals that come-out of a chemical reaction.
  6. A series of molecules that pass high-energy electrons from molecule to molecule and capture their energy.
  7. In which part of the chloroplast does the Calvin Cycle occur?
  8. One of the two main processes involved in photosynthesis?
Down
  1. What is produced from the Light Reactions and used in the Calvin Cycle?
  2. An energy-rich molecule produced in the Light Reactions and used-up in the Calvin Cycle.
  3. One of the two main processes involved in photosynthesis?
  4. In what organelle does photosynthesis occur?
  5. An organism that uses chemical energy instead of light energy to make its food.
  6. What energy is used to “drive” photosynthesis?
  7. The chemicals that go-into a chemical reaction.
  8. Glucose is produced from the Calvin Cycle. What kind of organic compound is glucose?
  9. What is the name for C6H12O6?

17 Clues: What is the name for C6H12O6? • Organisms that produce their own food. • In what organelle does photosynthesis occur? • What energy is used to “drive” photosynthesis? • The chemicals that go-into a chemical reaction. • The chemicals that come-out of a chemical reaction. • One of the two main processes involved in photosynthesis? • ...

Hazardous Chemicals at Home 2017-08-14

Hazardous Chemicals at Home crossword puzzle
Across
  1. An exit for liquids.
  2. Ethanol or isopropyl are examples.
  3. Chemical in windshield wiper fluid that can be absorbed through the skin.
  4. Vinegar and lemon juice are these.
  5. When an acid and a base react and cancel each other out.
  6. Strong alkaline chemical that whitens fabric.
  7. Common acid found in yellow citrus.
  8. The interaction of two or more chemicals, sometimes violently.
  9. Acid made from wine.
  10. Baking soda is the most common household one.
  11. Type of soap usually recommended as a natural cleaning agent.
Down
  1. From nature.
  2. The cold gaseous phase of a chemical.
  3. Toxic chemical used in swimming pools.
  4. The least dense form of matter, or slang for petroleum.
  5. Acid used to help stabilize egg whites.
  6. Colorless liquid that is often used in glass cleaner.
  7. Basic chemical used in baking and as an antacid.
  8. Liquid commonly used as a first aid antiseptic.
  9. Natural hair and skin dye, usually reddish brown.
  10. People are becoming more concerned about these in their homes.
  11. The Universal solvent.
  12. Not dangerous.

23 Clues: From nature. • Not dangerous. • An exit for liquids. • Acid made from wine. • The Universal solvent. • Ethanol or isopropyl are examples. • Vinegar and lemon juice are these. • Common acid found in yellow citrus. • The cold gaseous phase of a chemical. • Toxic chemical used in swimming pools. • Acid used to help stabilize egg whites. • Strong alkaline chemical that whitens fabric. • ...

Molecular Hydrogen Therapy 2018-01-18

Molecular Hydrogen Therapy crossword puzzle
Across
  1. process of programmed cell death
  2. in severe burn lung injury hydrogen rich saline can reduce
  3. a salt of carbonic acid in high to or more hydrogen atom has been replaced
  4. electrically neutral group of two or more atoms held together by chemical bond
  5. substance or treatment that reduces inflammation or swelling
  6. chemical that are very basic or very acidic
  7. reoxygenation injury
  8. chemical solution with high concentration of H+ With pH of less than 7
  9. a hydrogen bond with oxygen
Down
  1. simple diffusion of water molecular from high to low concentration
  2. Molecular hydrogen most efficient treatment
  3. dissolved liquid injected with Hydrogen
  4. bond a chemical reaction between to or more hydrogen atoms
  5. powerhouse of the cell
  6. substance such as vitamin C or E that removes potentially damaging oxidizing agents in a living organism.
  7. hydrogen rich water pre-exercise reduced blood levels of
  8. quality of being toxic to cells
  9. reactive oxygen species acronym
  10. radioactive isotope of hydrogen
  11. a chemical solution with low concentration of H+ With pH of greater than 7

20 Clues: reoxygenation injury • powerhouse of the cell • a hydrogen bond with oxygen • quality of being toxic to cells • reactive oxygen species acronym • radioactive isotope of hydrogen • process of programmed cell death • dissolved liquid injected with Hydrogen • Molecular hydrogen most efficient treatment • chemical that are very basic or very acidic • ...

Life's Processes Vocab assignment 2025-03-20

Life's Processes Vocab assignment crossword puzzle
Across
  1. A process where the chemical composition of a substance is changed.
  2. What comes out of a chemical reaction(the output).
  3. _
  4. change
Down
  1. What goes into a chemical reaction(the input).
  2. _
  3. The ability to do something.
  4. Matter cannot be created or destroyed, only changed.
  5. _

9 Clues: _ • _ • _ • change • The ability to do something. • What goes into a chemical reaction(the input). • What comes out of a chemical reaction(the output). • Matter cannot be created or destroyed, only changed. • A process where the chemical composition of a substance is changed.

Chemical Reactions 2021-12-01

Chemical Reactions crossword puzzle
Across
  1. formed between nonmetal atoms with shared electrons
  2. releases energy, usually in the form of heat
  3. atoms rearrange to form new substances
  4. attraction between oppositely charged ions
  5. new substances formed
  6. highest energy level
  7. neutral group of atoms joined by covalent bonds
  8. absorbs energy
  9. force of attraction that holds atoms together
  10. alters the form or appearance of a substance
Down
  1. symbol surrounded by dots
  2. 3D arrangement
  3. an atom or a group of atoms with an electric charge
  4. a way to show chemical reactions with symbols
  5. a group of symbols that shows the ratios of elements
  6. substances that undergo chemical changes
  7. a solid that forms from liquid during a chemical reaction

17 Clues: 3D arrangement • absorbs energy • highest energy level • new substances formed • symbol surrounded by dots • atoms rearrange to form new substances • substances that undergo chemical changes • attraction between oppositely charged ions • releases energy, usually in the form of heat • alters the form or appearance of a substance • a way to show chemical reactions with symbols • ...

Vocabulary Crossword 2012-10-04

Vocabulary Crossword crossword puzzle
Across
  1. a cluster in the center of a atom
  2. change one substance added to another to create new form
  3. a hydrogen particle
  4. a particle found in the nucleus of all atoms
  5. characteristics of of an element
  6. two or more elements
  7. two or more atoms
  8. acid group of organic acids in living cells
  9. compound member of large class which has to have carbon
Down
  1. a responds to a stimulus
  2. group of naturally occurring molecules
  3. compound containing carbon, hydrogen, and oxygen
  4. a particle with a negative charge
  5. change changes in shape, size, color, and volume
  6. chemical elements between metals and nonmetals
  7. table display of chemical elements
  8. any of the four substances
  9. a unit of matter

18 Clues: a unit of matter • two or more atoms • a hydrogen particle • two or more elements • a responds to a stimulus • any of the four substances • characteristics of of an element • a cluster in the center of a atom • a particle with a negative charge • table display of chemical elements • group of naturally occurring molecules • acid group of organic acids in living cells • ...

Chemical Changes Vocabulary 2023-12-13

Chemical Changes Vocabulary crossword puzzle
Across
  1. an original substance at the beginning of a chemical reaction
  2. a solid formed from the chemical reaction of some solutions
  3. Chemical ________: an event that occurs as two or more substances are combined to form a new substance
Down
  1. Chemical ________: properties that are observed when matter changes
  2. Chemical ________: a change of matter that occurs when atoms link together in a new way, creating a new substance different from the original substances
  3. a substance at the end of a chemical reaction

6 Clues: a substance at the end of a chemical reaction • a solid formed from the chemical reaction of some solutions • an original substance at the beginning of a chemical reaction • Chemical ________: properties that are observed when matter changes • Chemical ________: an event that occurs as two or more substances are combined to form a new substance • ...

Chemical Changes 2023-02-02

Chemical Changes crossword puzzle
Across
  1. Relating to *how* the substance is
  2. To set on fire or be on fire
  3. When a reaction takes heat from the environment
  4. The substances that react with each other
  5. When one thing takes the place of another thing
  6. Relating to *what* the substance is
Down
  1. When something falls apart
  2. When something remains the same
  3. The solids that result from the reactions of liquids
  4. The output or result of a reaction
  5. When a reaction gives heat to the environment
  6. When two things become one thing

12 Clues: When something falls apart • To set on fire or be on fire • When something remains the same • When two things become one thing • Relating to *how* the substance is • The output or result of a reaction • Relating to *what* the substance is • The substances that react with each other • When a reaction gives heat to the environment • ...

PS3-1 Vocabulary 2022-04-03

PS3-1 Vocabulary crossword puzzle
Across
  1. type of energy pertaining to vibrations of molecules due to temperature
  2. ability to do work
  3. energy that is absorbed or emitted from system during transition
  4. the variable "q" represents the amount of heat _______ between the system and surroundings
  5. reaction that gives off heat energy
Down
  1. unit for work/ energy
  2. phase ______ between solids, liquids, and gases
  3. reaction that needs heat energy
  4. the law of ________ of mass
  5. everything around the reaction
  6. substances that are reacting and being studied
  7. energy stored in bonds

12 Clues: ability to do work • unit for work/ energy • energy stored in bonds • the law of ________ of mass • everything around the reaction • reaction that needs heat energy • reaction that gives off heat energy • substances that are reacting and being studied • phase ______ between solids, liquids, and gases • energy that is absorbed or emitted from system during transition • ...

Biology 2025-10-15

Biology crossword puzzle
Across
  1. smallest unit of an element that retains the chemical and physical properties of that
  2. term that describes a nonliving factor in an ecosystem
  3. zone of life on earth;sum total of all ecosystems on earth
  4. substance that enables a chemical reaction to proceed at a usually taster rate.
  5. intermolecular attraction between unlike molecules
  6. basic unit of structure and function for all living organisms
  7. large area or geographical region with distinct plant and animal groups adapted to that environment
Down
  1. group of biomacromolecules that interact with biological systems and their environment
  2. macromolecule that contains atoms of carbon, hydrogen, and oxygen
  3. energy:The minimum energy required to initiate a specific chemical reaction
  4. intermolecular attraction between like molecules
  5. term that describes a living or once living organism in an ecosystem

12 Clues: intermolecular attraction between like molecules • intermolecular attraction between unlike molecules • term that describes a nonliving factor in an ecosystem • zone of life on earth;sum total of all ecosystems on earth • basic unit of structure and function for all living organisms • macromolecule that contains atoms of carbon, hydrogen, and oxygen • ...

IB Chemistry Crossword (25 Words) 2025-11-18

IB Chemistry Crossword (25 Words) crossword puzzle
Across
  1. – Amount of solute dissolved per unit volume of solution
  2. – Atoms of the same element with different numbers of neutrons
  3. – Heat-resistant container used for strongly heating substances
  4. – State where forward and reverse reaction rates are equal
  5. – Uniform composition throughout
  6. – A proton (H⁺) donor in the Brønsted–Lowry theory
  7. – A measure of how strongly an atom attracts bonding electrons
  8. – Amount of substance containing 6.02×10²³ particles
  9. – Simplest whole-number ratio of atoms in a compound
  10. – Minimum energy required for a reaction to occur
  11. – Change of state from solid to liquid
Down
  1. – Gain of electrons in a chemical reaction
  2. – Non-uniform composition; visibly different parts
  3. – Bond formed by the sharing of electron pairs
  4. – Technique to determine concentration using a standard solution
  5. – The substance that dissolves a solute
  6. – Separation of insoluble solids from liquids using a porous barrier
  7. – Energy needed to remove one mole of electrons from gaseous atoms
  8. – Substance that speeds up a reaction without being consumed
  9. – Change of state from liquid to solid
  10. – A theoretical gas that obeys PV = nRT perfectly
  11. – To dissolve as much solute as possible at a given temperature
  12. – A charged particle formed by gaining or losing electrons
  13. – Reaction that releases heat to the surroundings
  14. – Heat content of a system at constant pressure

25 Clues: – Uniform composition throughout • – Change of state from liquid to solid • – Change of state from solid to liquid • – The substance that dissolves a solute • – Gain of electrons in a chemical reaction • – Bond formed by the sharing of electron pairs • – Heat content of a system at constant pressure • – A theoretical gas that obeys PV = nRT perfectly • ...

Combustion 2015-01-20

Combustion crossword puzzle
Across
  1. A fossil fuel which is burnt.
  2. The name of the gas which comes out the gas taps.
  3. Type of chemical reaction when a fuel is burnt in oxygen.
  4. Type of combustion when the amount of oxygen is limited.
  5. Compound formed from incomplete combustion.
  6. A product of both types of combustion.
  7. The fossil fuel which we use to light the Bunsen burners.
Down
  1. Colour of the Bunsen flame when the hole is open.
  2. The chemical which are made in a reactions.
  3. A fossil fuel which is found in the ground.
  4. Compound which turn lime water milky.
  5. Type of combustion when there is lots of oxygen present.
  6. Colour of the Bunsen flame when the hole is closed.
  7. The starting chemicals in a reaction.

14 Clues: A fossil fuel which is burnt. • Compound which turn lime water milky. • The starting chemicals in a reaction. • A product of both types of combustion. • The chemical which are made in a reactions. • A fossil fuel which is found in the ground. • Compound formed from incomplete combustion. • Colour of the Bunsen flame when the hole is open. • ...

Life's Processes Vocab assignment 2025-03-20

Life's Processes Vocab assignment crossword puzzle
Across
  1. A process where the chemical composition of a substance is changed.
  2. What comes out of a chemical reaction(the output).
  3. _
  4. change
Down
  1. What goes into a chemical reaction(the input).
  2. _
  3. The ability to do something.
  4. Matter cannot be created or destroyed, only changed.
  5. _

9 Clues: _ • _ • _ • change • The ability to do something. • What goes into a chemical reaction(the input). • What comes out of a chemical reaction(the output). • Matter cannot be created or destroyed, only changed. • A process where the chemical composition of a substance is changed.