chemical reaction Crossword Puzzles

Amylase Required Practical 2025-11-18

Amylase Required Practical crossword puzzle
Across
  1. site – the part of the enzyme that fits the substrate.
  2. – the best condition for enzyme activity.
  3. variables – things you keep the same (volumes, concentrations, timing).
  4. variable – what you measure (time for starch to disappear).
  5. – a large carbohydrate molecule (substrate for amylase).
  6. – the molecule an enzyme acts on (here: starch).
  7. of reaction – how quickly the enzyme breaks down starch.
  8. variable – what you change (e.g. temperature or pH).
Down
  1. – the sugar produced when starch is broken down.
  2. – when the enzyme’s shape changes so it no longer works.
  3. – the molecule made after the reaction (here: maltose).
  4. – something that speeds up a reaction without being used up.
  5. – chemical used to test for starch (blue‑black if starch is present).
  6. – the enzyme that breaks down starch into maltose.
  7. – a biological catalyst that speeds up chemical reactions.

15 Clues: – the best condition for enzyme activity. • – the sugar produced when starch is broken down. • – the molecule an enzyme acts on (here: starch). • – the enzyme that breaks down starch into maltose. • variable – what you change (e.g. temperature or pH). • site – the part of the enzyme that fits the substrate. • – the molecule made after the reaction (here: maltose). • ...

Matter 2022-09-03

Matter crossword puzzle
Across
  1. Matter is anything that has mass and _____.
  2. Compounds can be separated through _____ methods.
  3. Mass is different from _____.
  4. Liquid water being heated to become a gas is an example of a _____ change.
  5. A compound has different ____ from the individual elements that make it up.
  6. Simplest form of matter.
  7. Chemical combination of two or more elements.
  8. Mixture with no visible boundaries and uniform throughout.
  9. Homogeneous mixtures are called ______.
  10. Elements and compounds are examples of _______ substances.
  11. Quantity of matter that an object contains.
  12. ___ have fixed volumes but assume the shape of the container.
  13. ___ do not have fixed volumes nor shapes.
Down
  1. The conversion of elements into a compound is a __ change.
  2. Mixtures can be separated through _____ means.
  3. A pure chemical substances has a ____ chemical composition and properties.
  4. Mixture with not uniform composition.
  5. Basic unit of matter.
  6. Physical combinations of two or more pure substances in variable composition.
  7. A chemical change is a chemical ____.
  8. ___ are rigid and have a fixed volume.

21 Clues: Basic unit of matter. • Simplest form of matter. • Mass is different from _____. • Mixture with not uniform composition. • A chemical change is a chemical ____. • ___ are rigid and have a fixed volume. • Homogeneous mixtures are called ______. • ___ do not have fixed volumes nor shapes. • Matter is anything that has mass and _____. • ...

Menu Crossword 2023-03-28

Menu Crossword crossword puzzle
Across
  1. Multiple elements making a new subtance
  2. A reaction to the stimuli
  3. A formula showing all the elements in a new substance
  4. A internal or external action
  5. A reaction on the chemical level
  6. A singular atom
Down
  1. They make up everything
  2. A number showing how many atoms of an element there are
  3. A change in physical form
  4. A table showing all elements
  5. A change in chemical form
  6. A plant reacting to light

12 Clues: A singular atom • They make up everything • A change in physical form • A reaction to the stimuli • A change in chemical form • A plant reacting to light • A table showing all elements • A internal or external action • A reaction on the chemical level • Multiple elements making a new subtance • A formula showing all the elements in a new substance • ...

Mason's chapter 13 crossword 2017-10-11

Mason's chapter 13 crossword crossword puzzle
Across
  1. The new materials formed in a chemical reaction.
  2. Description of a chemical reaction in which there is a net release of energy.
  3. A substance that donates hydrogen ions.
  4. A polyatomic ion made by removing a proton from a water molecule.
  5. Description of a substance that can behave as either an acid or a base.
  6. The process by which a reactant gains one or more electrons.
Down
  1. a substance that accepts hydrogen ions.
  2. The deterioration of a metal, typically caused by atmospheric oxygen.
  3. A polyatomic ion made by adding a proton to a water molecule.
  4. The reacting substances in a chemical reaction.

10 Clues: a substance that accepts hydrogen ions. • A substance that donates hydrogen ions. • The reacting substances in a chemical reaction. • The new materials formed in a chemical reaction. • The process by which a reactant gains one or more electrons. • A polyatomic ion made by adding a proton to a water molecule. • ...

Unit 5-Lesson 3 and Lesson 4 Crossword 2024-01-16

Unit 5-Lesson 3 and Lesson 4 Crossword crossword puzzle
Across
  1. you have them in the beginning of a chemical reaction
  2. The rearrangement of atoms to create one or more new compounds.
  3. force that makes a body follow a curved path
  4. you have them at the end of a chemical reaction
  5. The property of an object to resist change in Motion.
  6. equal in size and opposite in direction
  7. Energy is released
  8. Energy is absorbed
Down
  1. An object at rest remains at rest, and an object in motion remains in motion
  2. Directly proportional to net force
  3. The units used for Force
  4. applied force in one direction is greater than the force applied in the opposite direction
  5. for every action there is a reaction in opposite direction

13 Clues: Energy is released • Energy is absorbed • The units used for Force • Directly proportional to net force • equal in size and opposite in direction • force that makes a body follow a curved path • you have them at the end of a chemical reaction • you have them in the beginning of a chemical reaction • The property of an object to resist change in Motion. • ...

Energy Enzymes 2025-02-17

Energy Enzymes crossword puzzle
Across
  1. The energy possessed by an object due to its motion or position relative to other objects
  2. LAW The law stating energy cannot be created or destroyed
  3. Reactions that require energy input
  4. Term for a reaction where products have less free energy than reactants
  5. An agent that speeds up the rate of a chemical reaction
  6. The initial energy input to start a reaction
Down
  1. POTENTIAL Potential energy stored in the electrons of molecules
  2. A protein catalyst in living cells
  3. Energy associated with movement
  4. The unusable energy that increases when energy is transferred
  5. Releases heat energy
  6. ENERGY The energy in molecular bonds, a form of potential energy
  7. A form of electromagnetic radiation visible to the eye
  8. The ability to promote change or do work

14 Clues: Releases heat energy • Energy associated with movement • A protein catalyst in living cells • Reactions that require energy input • The ability to promote change or do work • The initial energy input to start a reaction • A form of electromagnetic radiation visible to the eye • An agent that speeds up the rate of a chemical reaction • ...

C1 Crossword 2023-09-29

C1 Crossword crossword puzzle
Across
  1. Discovered the nucleus.
  2. Form positive ions.
  3. Property that can only be determined by studying a chemical reaction.
  4. Form negative ions.
  5. Atoms of same element - different number of neutrons.
Down
  1. Discovered the neutron.
  2. Property that can be observed/measured without a chemical reaction.
  3. Discovered the electron.
  4. Formed by the gain or loss of electrons.

9 Clues: Form positive ions. • Form negative ions. • Discovered the neutron. • Discovered the nucleus. • Discovered the electron. • Formed by the gain or loss of electrons. • Atoms of same element - different number of neutrons. • Property that can be observed/measured without a chemical reaction. • Property that can only be determined by studying a chemical reaction.

Grey Roesti 2021-03-04

Grey Roesti crossword puzzle
Across
  1. _____ acids and bases do not completely ionize in water
  2. reduces reactions involve the transfer of an electron
  3. the rate of a reaction is dependent on the collisions among ______
  4. in an _______ reaction there is a net absorption of energy
  5. a base is a chemical that ____ a hydrogen ion
  6. ______ acids and bases ionize completely ionize in water
Down
  1. in a ______ reaction there is a net release of energy
  2. _____ can behave as an acid or base
  3. an acid is a chemical that _____ a hydrogen ion
  4. reaction rates are affected by temperature,concentration and ________

10 Clues: _____ can behave as an acid or base • a base is a chemical that ____ a hydrogen ion • an acid is a chemical that _____ a hydrogen ion • in a ______ reaction there is a net release of energy • reduces reactions involve the transfer of an electron • _____ acids and bases do not completely ionize in water • ______ acids and bases ionize completely ionize in water • ...

section 4 2021-11-24

section 4 crossword puzzle
Across
  1. physical substance
  2. substance that takes part in and undergoes change
  3. relating to physics or the operation of natural forces generally.
  4. in physics, the capacity for doing work.
  5. result
  6. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
Down
  1. smallest unit of matter
  2. a connection between two surfaces or objects that have been joined together, especially by means of an adhesive substance, heat, or pressure.
  3. a conductor through which electricity enters or leaves an object, substance, or region.
  4. a transformation
  5. to alter/modify
  6. relating to chemicals.

12 Clues: result • to alter/modify • a transformation • physical substance • relating to chemicals. • smallest unit of matter • in physics, the capacity for doing work. • substance that takes part in and undergoes change • relating to physics or the operation of natural forces generally. • a conductor through which electricity enters or leaves an object, substance, or region. • ...

section 4 2021-11-24

section 4 crossword puzzle
Across
  1. physical substance
  2. substance that takes part in and undergoes change
  3. relating to physics or the operation of natural forces generally.
  4. in physics, the capacity for doing work.
  5. result
  6. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
Down
  1. smallest unit of matter
  2. a connection between two surfaces or objects that have been joined together, especially by means of an adhesive substance, heat, or pressure.
  3. a conductor through which electricity enters or leaves an object, substance, or region.
  4. a transformation
  5. to alter/modify
  6. relating to chemicals.

12 Clues: result • to alter/modify • a transformation • physical substance • relating to chemicals. • smallest unit of matter • in physics, the capacity for doing work. • substance that takes part in and undergoes change • relating to physics or the operation of natural forces generally. • a conductor through which electricity enters or leaves an object, substance, or region. • ...

Biology Bonus Crossword 2023-04-24

Biology Bonus Crossword crossword puzzle
Across
  1. How close a measured value is to an accepted value.
  2. The change in heat of the products from the reactants.
  3. The study of how heat is converted to and from other forms of energy and how it affects matter.
  4. Silver + Hydrochloric Acid-->
  5. The relationship between the quantities of reactants and products before and after chemical reactions.
  6. PV=nRT
  7. Discovered the nucleus of the atom.
  8. Column 8 on the periodic table.
  9. Electrons are transferred between atoms, resulting in cations and anions.
  10. How strongly atoms attract bonding electrons to themselves.
Down
  1. A substance that speeds up a chemical reaction without itself undergoing any chemical change. They do this by lowering the activation energy of a reaction.
  2. Zinc + Oxygen-->
  3. Lithium + Bromine-->
  4. ___'s Law; V1/T1=V2/T2
  5. Exactly 6.02 atoms of a substance.
  6. The number of sig figs in 4.097.
  7. Microscopic particles dispersed evenly in another substance.
  8. Mass of one mole of mercury in grams (with the unit).
  9. Metals tend to ___ electrons.
  10. Crumbles easily, insulator, non-conductive, dull.

20 Clues: PV=nRT • Zinc + Oxygen--> • Lithium + Bromine--> • ___'s Law; V1/T1=V2/T2 • Silver + Hydrochloric Acid--> • Metals tend to ___ electrons. • Column 8 on the periodic table. • The number of sig figs in 4.097. • Exactly 6.02 atoms of a substance. • Discovered the nucleus of the atom. • Crumbles easily, insulator, non-conductive, dull. • ...

Changes In Matter 2025-04-23

Changes In Matter crossword puzzle
Across
  1. the force that holds atoms
  2. the basic building block of chemistry
  3. the branch of natural science
  4. it measures how much is inside of something
  5. it measures how hot or cold something is
  6. a substance made of one atom
  7. the amount of space occupied by matter
  8. matter that does not alter the chemical properties
  9. two or more chemically bonded together
  10. it can be observed without changing
  11. when bonds break and new ones are formed
  12. a substance that comes in content with another
  13. a substance to help chemicals go faster
Down
  1. heat absorbed by surrounding areas
  2. the end of a chemical reaction
  3. anything that takes up space and can be weighed
  4. a chemical made up of more than one element
  5. a combination of two or more substances
  6. the capacity to do work
  7. the amount of energy that is transferred from one system
  8. a specific characteristic of a substance
  9. the process of releasing heat
  10. the attraction of molecules
  11. a substance that is present to the start

24 Clues: the capacity to do work • the force that holds atoms • the attraction of molecules • a substance made of one atom • the branch of natural science • the process of releasing heat • the end of a chemical reaction • heat absorbed by surrounding areas • it can be observed without changing • the basic building block of chemistry • the amount of space occupied by matter • ...

Biochemistry 2025-05-22

Biochemistry crossword puzzle
Across
  1. The tendency of an atom to attract electrons to itself when bonded to another atom
  2. The type of covalent bond where electrons are shared unequally
  3. Bond between two nucleotides
  4. Bond between two amino acids
  5. Molecules that have the same chemical formulas but different arrangements of atoms
  6. Chemical reaction that joins monomers
  7. "___ defines function"
  8. They store and transmit hereditary information
  9. Compounds comprised of only nonmetals held together by covalent bonds
  10. Most structurally sophisticated molecule
  11. Electrons shared by 2 nonmetals
Down
  1. Made of C, H, and O in a 1:2:1 ratio
  2. The water property that causes capillary action
  3. The most abundant molecule in all organisms
  4. Comprised of smaller molecules called monomers
  5. The chemistry of life
  6. Bond between 2 monosaccharides
  7. The type of covalent bond where electrons are shared equally
  8. Bond between a glycerol molecule and a fatty acid
  9. Chemical reaction that breaks polymers by adding water
  10. Made of fatty acids and glycerol
  11. The water property that causes surface tension
  12. The molecule found in all four main biomolecules

23 Clues: The chemistry of life • "___ defines function" • Bond between two nucleotides • Bond between two amino acids • Bond between 2 monosaccharides • Electrons shared by 2 nonmetals • Made of fatty acids and glycerol • Made of C, H, and O in a 1:2:1 ratio • Chemical reaction that joins monomers • Most structurally sophisticated molecule • The most abundant molecule in all organisms • ...

Redox Reaction 2020-06-23

Redox Reaction crossword puzzle
Across
  1. The sum of oxidation states of all the atoms present in the formula of a compound is
  2. The oxidation number of this chemical element in all compound is always -2 except in fluorine compounds and in peroxides which is -1
  3. The electrode placed in a solution containing a reducing agent acts as the
  4. A reaction in which one element displaces another element from its salt solution
  5. The oxidation number of this chemical element in all compound is +1 except in metal hydrides
  6. Redox reaction between iron, oxygen and water to form a brown substance (rust) is called
  7. The oxidation number of this chemical element in all compound is always -1 because it is the most electronegative element
  8. Daniell cell is one of the example of
Down
  1. The arrangement of metals according to their tendency to lose electrons to form positive ions is called
  2. Decrease in the oxidation number
  3. Redox reaction in which a metal is oxidised spontaneously at room temperature with the release of electrons to form the metal ions
  4. Displacement reaction between aluminium and iron (III) oxide to produce iron
  5. The reactant that loses electrons acts as a
  6. The reactant that accepts electrons acts as a
  7. Loss of hydrogen and gain oxygen
  8. One of the example of unreactive metals that do not corrode because they are resistant to oxidation

16 Clues: Decrease in the oxidation number • Loss of hydrogen and gain oxygen • Daniell cell is one of the example of • The reactant that loses electrons acts as a • The reactant that accepts electrons acts as a • The electrode placed in a solution containing a reducing agent acts as the • Displacement reaction between aluminium and iron (III) oxide to produce iron • ...

leo chemistry project 2022-05-05

leo chemistry project crossword puzzle
Across
  1. The number in a chemical equation that says how many atoms of an element there is
  2. Is equal to the atomic number
  3. A pure substance that cannot be broken down
  4. mass Is the sum of protons and neutrons
Down
  1. The rows on a periodic table
  2. The columns on a periodic table
  3. Represents an element
  4. The result of a chemical reaction
  5. table Organized chart of elements
  6. reaction A complete new substance

10 Clues: Represents an element • The rows on a periodic table • Is equal to the atomic number • The columns on a periodic table • The result of a chemical reaction • table Organized chart of elements • reaction A complete new substance • mass Is the sum of protons and neutrons • A pure substance that cannot be broken down • ...

Types of Chemical Reactions by Evan Dennis 10L 2025-04-25

Types of Chemical Reactions by Evan Dennis 10L crossword puzzle
Across
  1. When a decomposition reaction is carried out by electric current
  2. When a decomposition reaction is carried out by light
  3. When fats and oils are oxidised they become rancid and their smell and taste change.
  4. Loss of oxygen or gain of hydrogen
  5. The reaction in which two or more substances combine to form a new single substance
  6. When a metal is attacked by substances around it such as moisture, acids etc.
Down
  1. Any reaction that produces a precipitate is called a precipitation reaction.
  2. When a decompositon reaction is carried out by heating
  3. The reaction in which two different atoms or group of atoms are mutually exchanged
  4. The reactions which require energy in the form of heat, light or electricty
  5. The chemical Reaction in which an element displaces another element from its solution
  6. The reaction in which a single substance decomposes to give two or more substances.
  7. The reaction in which one reactant gets oxidised while other gets reduced
  8. Reaction in which heat is released along with the formation of products
  9. Gain of oxygen or loss of hydrogen

15 Clues: Gain of oxygen or loss of hydrogen • Loss of oxygen or gain of hydrogen • When a decomposition reaction is carried out by light • When a decompositon reaction is carried out by heating • When a decomposition reaction is carried out by electric current • Reaction in which heat is released along with the formation of products • ...

Science Holiday Homework 2025-07-06

Science Holiday Homework crossword puzzle
Across
  1. A transparent object used to converge or diverge light.
  2. A mirror or lens that curves inward like a cave.
  3. Bending of light when it passes from one medium to another.
  4. The process by which green plants make food using sunlight.
  5. Removal of waste products from the body.
  6. Loss of electrons or gain of oxygen in a reaction.
  7. Loss of water from plant leaves through stomata.
  8. A reaction where one substance breaks into two or more.
Down
  1. The point where parallel rays meet after reflection/refraction.
  2. A chemical equation where atoms are equal on both sides.
  3. An insoluble solid formed during a reaction in solution.
  4. The process of breaking down food into simpler forms.
  5. Substances that undergo a chemical change.
  6. Breakdown of food to release energy.
  7. A smooth surface that reflects light.

15 Clues: Breakdown of food to release energy. • A smooth surface that reflects light. • Removal of waste products from the body. • Substances that undergo a chemical change. • A mirror or lens that curves inward like a cave. • Loss of water from plant leaves through stomata. • Loss of electrons or gain of oxygen in a reaction. • ...

Bio 2017-09-21

Bio crossword puzzle
Across
  1. Process by which materials enter and leave cells or get moved around in the organism
  2. Combining simple substances to make more complex substances
  3. Removal of an organisms metabolic wastes
  4. Producing new off spring identical to the parents;involves one parent
  5. Involves activities that control and coordinate an organism
  6. The breakdown of food materials into simpler forms
  7. Condition of maintaining a constant internal environment
  8. Involves all the chemical reaction carried on in an organism
  9. Chemical substances in food that an organism needs
Down
  1. How an organism takes materials from the environment and converts them to something it can use
  2. The study of life
  3. Increase in size of an organism
  4. The process of releasing chemical energy from complex reaction
  5. Involves getting rid of undigested food from the body
  6. Involves two parents;offspring are not identical to the parent
  7. Producing new offspring
  8. Something capable living on its own
  9. The taking in of food

18 Clues: The study of life • The taking in of food • Producing new offspring • Increase in size of an organism • Something capable living on its own • Removal of an organisms metabolic wastes • The breakdown of food materials into simpler forms • Chemical substances in food that an organism needs • Involves getting rid of undigested food from the body • ...

Chemical Reactions 2021-12-02

Chemical Reactions crossword puzzle
Across
  1. indication that a chemical reaction is occuring
  2. reatants=products
  3. Is the net releasing energy.
Down
  1. indication that a chemical reaction is occuring.
  2. speed in which a reaction takes place.
  3. law that says no atoms are gained or lost in any reaction.
  4. Is a net absorption of energy
  5. indication that a chemical reaction is occuring
  6. Is the bond of energy.
  7. indication that a chemical reaction is occuring.

10 Clues: reatants=products • Is the bond of energy. • Is the net releasing energy. • Is a net absorption of energy • speed in which a reaction takes place. • indication that a chemical reaction is occuring • indication that a chemical reaction is occuring • indication that a chemical reaction is occuring. • indication that a chemical reaction is occuring. • ...

Weathering, Erosion, and Deposition 2023-12-05

Weathering, Erosion, and Deposition crossword puzzle
Across
  1. When water freezes in the cracks of rocks, expanding and pushing the rock apart
  2. The sphere containing all of the gasses on Earth
  3. The sphere of Earth containing rocks, dirt, land, mountains, etc.
  4. A type of weathering that occurs when a rock is weakened by a physical force pulling it apart
  5. The sphere of Earth containing all of the living things (plants and animals)
  6. The sphere containing all of the water on Earth
  7. This occurs at the end of erosion when the rock is dropped in a new location
Down
  1. A type of weathering that occurs when a rock is weakened by a chemical reaction
  2. When pieces of a rock disintegrate due to a chemical reaction
  3. Small pieces of rock, dirt, or sand
  4. A chemical reaction that occurs when iron is exposed to oxygen; rust
  5. The process of small pieces of rock being moved from one place to another
  6. The process of scraping something repeatedly to wear it down
  7. Rainfall that has been made acidic by pollution

14 Clues: Small pieces of rock, dirt, or sand • The sphere containing all of the water on Earth • Rainfall that has been made acidic by pollution • The sphere containing all of the gasses on Earth • The process of scraping something repeatedly to wear it down • When pieces of a rock disintegrate due to a chemical reaction • ...

Science Grade 6 2025-10-10

Science Grade 6 crossword puzzle
Across
  1. of Matter - The form a substance is in: solid, liquid, or gas.
  2. - How well a substance can dissolve in a liquid.
  3. - The smallest, basic piece of matter; the building block of everything.
  4. Reaction - A process where substances change to make new and different substances.
  5. - A substance made when two or more different elements join together.
  6. - A quality that describes a substance, like its color, hardness, or if it can burn.
  7. - How much mass is in a certain volume of a substance; if it feels heavy for its size.
  8. - A group of two or more atoms connected together.
Down
  1. Change - A change that creates one or more new substances.
  2. - The starting materials in a chemical reaction.
  3. Change - A change in how a substance looks or feels, but no new substance is created.
  4. - A pure substance made of only one type of atom.
  5. - A combination of different substances that are not chemically bonded.
  6. - The new substance(s) created at the end of a chemical reaction.
  7. of Conservation of Mass - A scientific rule that says matter is not created or destroyed in a reaction.

15 Clues: - The starting materials in a chemical reaction. • - How well a substance can dissolve in a liquid. • - A pure substance made of only one type of atom. • - A group of two or more atoms connected together. • Change - A change that creates one or more new substances. • of Matter - The form a substance is in: solid, liquid, or gas. • ...

Biology Crossword 11/4 2022-11-06

Biology Crossword 11/4 crossword puzzle
Across
  1. energy is released
  2. Release of energy from breaking down molecules
  3. Moving Energy
  4. Stored energy
  5. Totality of an organisms chemical reaction
  6. Light particles
Down
  1. Electrons are added to a compound
  2. A exergonic reaction drives or causes a endergonic reaction
  3. Occurs in the stroma
  4. Stored potential energy
  5. Electrons are taken from molecules
  6. Absorbs sunlight into the Chloroplasts

12 Clues: Moving Energy • Stored energy • Light particles • energy is released • Occurs in the stroma • Stored potential energy • Electrons are added to a compound • Electrons are taken from molecules • Absorbs sunlight into the Chloroplasts • Totality of an organisms chemical reaction • Release of energy from breaking down molecules • ...

Oxidation Emilio Salazar 2022-01-18

Oxidation Emilio Salazar crossword puzzle
Across
  1. Something that someone makes or grows so that they can sell it
  2. The chemical element of atomic number 8 and the life-supporting component of the air.
  3. A solid, liquid, or gas.
  4. Are changes affecting the form of a chemical substance, but not its chemical composition.
  5. A complete change in the appearance or character of something or someone, especially so that that thing or person is improved.
  6. The measured amount of heat in a place or in the body.
Down
  1. A series of actions that you take in order to achieve a result.
  2. happens when one chemical substance is transformed into one or more different substances.
  3. An occasion when two or more people or things communicate with or react to each other.
  4. A substance that is part of a chemical reaction.
  5. Is a process in which a chemical substance changes because of the addition of oxygen.
  6. A statement containing chemical symbols, used to show the changes that happen during a particular chemical reaction.

12 Clues: A solid, liquid, or gas. • A substance that is part of a chemical reaction. • The measured amount of heat in a place or in the body. • Something that someone makes or grows so that they can sell it • A series of actions that you take in order to achieve a result. • The chemical element of atomic number 8 and the life-supporting component of the air. • ...

Chemistry Review Crossword Puzzle 2017-05-06

Chemistry Review Crossword Puzzle crossword puzzle
Across
  1. What are good conductors, shiny, and ductile?
  2. What's it called for two or more substances that are combined without chemicals?
  3. What is a chemical substance of two or more different chemical elements?
  4. What's the ability to do work and make change possible?
  5. Hydroxide is a _______.
  6. A ______ reaction is a chemical reaction in which the products reform the original reactants.
  7. What are properties of metals and nonmetals, solids, and semi-conductors?
  8. What has a definite volume but no definite shape?
  9. a is the symbol for an _____ particle.
  10. What's in each column?
  11. What's the formation of a negative ion?
  12. what is the SI base unit for temperature?
  13. The _____rule says atoms will combine to have 8 valence electrons.
  14. What is a quantitative description that includes both a number and a unit?
  15. ______ is when an electron drops from a higher energy level to a lower energy level and emits light.
  16. What's it called to go from a solid to a gas?
  17. What's the formation of a positive ion?
  18. A ________ mixture that can be separated.
  19. Who's the scientist that compared electrons in an atom to planets in the solar system?
  20. A _____ has a definite shape, volume, and melting point.
  21. What are poor conductors, brittle, dull, and gases?
Down
  1. What's the measure of how close a measurement comes to the actual or true value of whatever is measured?
  2. What's the mixing of the particles of 2 substances caused by their random motion?
  3. ________ bonds are made of two nonmetals
  4. What measures the distance?
  5. Hydronium is a ______.
  6. _______ bonds consist of two metals.
  7. What's the tendency of a substance to undergo chemical reaction?
  8. ______ metals are found in group 1.
  9. A ________ mixture that cannot easily be separated.
  10. ________are in group 17 and are salt formers.
  11. A small, whole number that appears in front of a formula.
  12. What's the measure of how close a series of measurements are to one another?
  13. _______ energy is also called radiant energy
  14. What's in each row?
  15. A _____ reaction is when two or more substances combine.
  16. The ______ yield is the amount of a product mathematically possible.
  17. A ______ reaction is when a single compound breaks down.
  18. What's a substance that cannot be broken down by chemicals?
  19. _______ bonds are composed of metals and nonmetals

40 Clues: What's in each row? • Hydronium is a ______. • What's in each column? • Hydroxide is a _______. • What measures the distance? • ______ metals are found in group 1. • _______ bonds consist of two metals. • a is the symbol for an _____ particle. • What's the formation of a negative ion? • What's the formation of a positive ion? • ________ bonds are made of two nonmetals • ...

chemistry review 2017-05-14

chemistry review crossword puzzle
Across
  1. What are good conductors, shiny, and ductile?
  2. What's a substance that cannot be broken down by chemicals?
  3. What's in each column?
  4. What's in each row?
  5. A ________ mixture that cannot easily be separated.
  6. What's it called for two or more substances that are combined without chemicals?
  7. What is a quantitative description that includes both a number and a unit?
  8. _______ energy is also called radiant energy
  9. ______ metals are found in group 1.
  10. A small, whole number that appears in front of a formula.
  11. _______ bonds consist of two metals.
  12. A ______ reaction is when a single compound breaks down.
  13. What's the tendency of a substance to undergo chemical reaction?
  14. What's it called to go from a solid to a gas?
  15. a is the symbol for an _____ particle.
  16. What's the ability to do work and make change possible?
  17. ________ bonds are made of two nonmetals
  18. what is the SI base unit for temperature?
  19. A _____ reaction is when two or more substances combine.
  20. What are poor conductors, brittle, dull, and gases?
  21. _______ bonds are composed of metals and nonmetals
Down
  1. A _____ has a definite shape, volume, and melting point.
  2. What measures the distance?
  3. ______ is when an electron drops from a higher energy level to a lower energy level and emits light.
  4. ________are in group 17 and are salt formers.
  5. The _____rule says atoms will combine to have 8 valence electrons.
  6. Hydroxide is a _______.
  7. A ________ mixture that can be separated.
  8. A ______ reaction is a chemical reaction in which the products reform the original reactants.
  9. What's the formation of a positive ion?
  10. The ______ yield is the amount of a product mathematically possible.
  11. What's the measure of how close a series of measurements are to one another?
  12. Hydronium is a ______.
  13. What's the measure of how close a measurement comes to the actual or true value of whatever is measured?
  14. What's the formation of a negative ion?
  15. What's the mixing of the particles of 2 substances caused by their random motion?
  16. What is a chemical substance of two or more different chemical elements?
  17. What are properties of metals and nonmetals, solids, and semi-conductors?
  18. What has a definite volume but no definite shape?
  19. Who's the scientist that compared electrons in an atom to planets in the solar system?

40 Clues: What's in each row? • What's in each column? • Hydronium is a ______. • Hydroxide is a _______. • What measures the distance? • ______ metals are found in group 1. • _______ bonds consist of two metals. • a is the symbol for an _____ particle. • What's the formation of a positive ion? • What's the formation of a negative ion? • ________ bonds are made of two nonmetals • ...

Chemistry Review Crossword Puzzle 2017-05-16

Chemistry Review Crossword Puzzle crossword puzzle
Across
  1. _______ energy is also called radiant energy
  2. What's the formation of a positive ion?
  3. ________are in group 17 and are salt formers.
  4. ______ is when an electron drops from a higher energy level to a lower energy level and emits light.
  5. What's the ability to do work and make change possible?
  6. ______ metals are found in group 1.
  7. ________ bonds are made of two nonmetals
  8. What has a definite volume but no definite shape?
  9. What measures the distance?
  10. A _____ reaction is when two or more substances combine.
  11. The _____rule says atoms will combine to have 8 valence electrons.
  12. A ______ reaction is when a single compound breaks down.
  13. A ______ reaction is a chemical reaction in which the products reform the original reactants.
  14. A ________ mixture that cannot easily be separated.
  15. Hydronium is a ______.
  16. A _____ has a definite shape, volume, and melting point.
  17. What is a quantitative description that includes both a number and a unit?
  18. The ______ yield is the amount of a product mathematically possible.
  19. What's the measure of how close a series of measurements are to one another?
  20. What's the tendency of a substance to undergo chemical reaction?
  21. What's in each column?
Down
  1. what is the SI base unit for temperature?
  2. Who's the scientist that compared electrons in an atom to planets in the solar system?
  3. What's the measure of how close a measurement comes to the actual or true value of whatever is measured?
  4. What is a chemical substance of two or more different chemical elements?
  5. What's a substance that cannot be broken down by chemicals?
  6. Hydroxide is a _______.
  7. What are good conductors, shiny, and ductile?
  8. What's the mixing of the particles of 2 substances caused by their random motion?
  9. What are poor conductors, brittle, dull, and gases?
  10. _______ bonds are composed of metals and nonmetals
  11. What's it called for two or more substances that are combined without chemicals?
  12. A ________ mixture that can be separated.
  13. What's it called to go from a solid to a gas?
  14. A small, whole number that appears in front of a formula.
  15. What are properties of metals and nonmetals, solids, and semi-conductors?
  16. What's in each row?
  17. _______ bonds consist of two metals.
  18. a is the symbol for an _____ particle.
  19. What's the formation of a negative ion?

40 Clues: What's in each row? • Hydronium is a ______. • What's in each column? • Hydroxide is a _______. • What measures the distance? • ______ metals are found in group 1. • _______ bonds consist of two metals. • a is the symbol for an _____ particle. • What's the formation of a positive ion? • What's the formation of a negative ion? • ________ bonds are made of two nonmetals • ...

Nuclear chemistry 2024-05-07

Nuclear chemistry crossword puzzle
Across
  1. atom characterized by the number of protons
  2. conversion of one chemical element
  3. high speed electron
  4. Series of chemical reactions
  5. positively charged particle
  6. nuclei combine
  7. property of some unstable atoms
  8. radioactive decay
Down
  1. a reaction that involves change in atom
  2. nucleus split into smaller nuclei
  3. disintegration of radioactive substance
  4. nuclear species of the same chemical element
  5. basic building block of chemistry
  6. electromagnetic radiation
  7. Reduce to half of its initial value

15 Clues: nuclei combine • radioactive decay • high speed electron • electromagnetic radiation • positively charged particle • Series of chemical reactions • property of some unstable atoms • nucleus split into smaller nuclei • basic building block of chemistry • conversion of one chemical element • Reduce to half of its initial value • a reaction that involves change in atom • ...

F5 Chemistry Revision 2023-06-09

F5 Chemistry Revision crossword puzzle
Across
  1. The _______ will not change when catalyst is added to a reversible reaction.
  2. It is the oxidation number of all elements.
  3. A lower temperature favors the _________ reaction.
  4. It means the substances are unreactive.
  5. It a is a substance that changes the rate of a reaction but remains chemically unchanged in the reaction.
  6. It is a common reducing agent.
  7. As the ________ increases, the gas particles become closer together.
  8. It is a process with the loss of electrons.
  9. The electrolyte must be in _______ or on aqueous solution.
  10. It is a substance formed when sulphur dioxide gas dissolved in concentrated sulphuric acid.
  11. Bond forming is an __________ process.
Down
  1. It is a type of reaction that involves both oxidation and reduction.
  2. When a reversible reaction reaches ___________, there is no overall change.
  3. The reactant particles must collide with each other in the right __________ and at a high speed for a chemical reaction to occur.
  4. This is the name given to the overall energy change during a reaction.
  5. If halide solution is _______, oxygen forms during electrolysis.
  6. For electroplating, the object to be electroplated is put at the ________.
  7. It means there is continual change at the particle level.
  8. It is where oxidation takes place during electrolysis.

19 Clues: It is a common reducing agent. • Bond forming is an __________ process. • It means the substances are unreactive. • It is the oxidation number of all elements. • It is a process with the loss of electrons. • A lower temperature favors the _________ reaction. • It is where oxidation takes place during electrolysis. • ...

Chemical Basis of Life 2013-09-13

Chemical Basis of Life crossword puzzle
Across
  1. Smallest particles of matter
  2. Positively charged atom found in the nucleus
  3. Subatomic particle with no charge found in the nucleus
  4. Mutual attraction between 2 atoms resulting in a redistribution of their outer electrons
  5. Reaction where simple chemical substances are combined to form complex chemical structures
  6. The sum of all chemical reactions that occur within the cells
  7. An example of a polysaccharide that cannot be digested by humans
  8. Positively charged ion that is formed when a neutral atom loses electrons
  9. Metal and a non-metal transferring electrons
  10. The capacity for work
  11. Makes up everything around us
Down
  1. The study of life
  2. Simplest sugar, that transport energy in the blood
  3. Have the same number of protons, but different number of neutrons
  4. Compounds that contain the element Carbon are:
  5. The control centre of an atom
  6. Negatively charged ion that is formed when a neutral atom loses electrons
  7. Reaction where complex substances are broken down into simpler substances
  8. Negatively charged particle outside the nucleus
  9. Two metals sharing electrons
  10. Pure substances that cannot be broken down
  11. Biological unit of all organisms

22 Clues: The study of life • The capacity for work • Smallest particles of matter • Two metals sharing electrons • The control centre of an atom • Makes up everything around us • Biological unit of all organisms • Pure substances that cannot be broken down • Positively charged atom found in the nucleus • Metal and a non-metal transferring electrons • ...

Chemistry Review Crossword Puzzle 2017-05-16

Chemistry Review Crossword Puzzle crossword puzzle
Across
  1. What's the formation of a positive ion?
  2. What's the mixing of the particles of 2 substances caused by their random motion?
  3. What's a substance that cannot be broken down by chemicals?
  4. Hydronium is a ______.
  5. What is a quantitative description that includes both a number and a unit?
  6. What are poor conductors, brittle, dull, and gases?
  7. What are properties of metals and nonmetals, solids, and semi-conductors?
  8. _______ bonds are composed of metals and nonmetals
  9. ______ is when an electron drops from a higher energy level to a lower energy level and emits light.
  10. A ________ mixture that can be separated.
  11. What's the ability to do work and make change possible?
  12. What's the measure of how close a measurement comes to the actual or true value of whatever is measured?
  13. A small, whole number that appears in front of a formula.
  14. _______ energy is also called radiant energy
  15. What's it called to go from a solid to a gas?
  16. What is a chemical substance of two or more different chemical elements?
  17. ________ bonds are made of two nonmetals
  18. What's in each column?
  19. _______ bonds consist of two metals.
  20. Who's the scientist that compared electrons in an atom to planets in the solar system?
Down
  1. What are good conductors, shiny, and ductile?
  2. What has a definite volume but no definite shape?
  3. A ________ mixture that cannot easily be separated.
  4. A ______ reaction is a chemical reaction in which the products reform the original reactants.
  5. what is the SI base unit for temperature?
  6. ________are in group 17 and are salt formers.
  7. What's the formation of a negative ion?
  8. Hydroxide is a _______.
  9. What's the tendency of a substance to undergo chemical reaction?
  10. A ______ reaction is when a single compound breaks down.
  11. The ______ yield is the amount of a product mathematically possible.
  12. A _____ has a definite shape, volume, and melting point.
  13. a is the symbol for an _____ particle.
  14. What's it called for two or more substances that are combined without chemicals?
  15. What's the measure of how close a series of measurements are to one another?
  16. What's in each row?
  17. A _____ reaction is when two or more substances combine.
  18. ______ metals are found in group 1.
  19. The _____rule says atoms will combine to have 8 valence electrons.
  20. What measures the distance?

40 Clues: What's in each row? • Hydronium is a ______. • What's in each column? • Hydroxide is a _______. • What measures the distance? • ______ metals are found in group 1. • _______ bonds consist of two metals. • a is the symbol for an _____ particle. • What's the formation of a positive ion? • What's the formation of a negative ion? • ________ bonds are made of two nonmetals • ...

Chemical Equations 2021-10-05

Chemical Equations crossword puzzle
Across
  1. The ... scale measures how strong an acid or base solution is.
  2. The end result of the reactants in an experiment
  3. A substance not completely dissociated in a solution
  4. C2H5OH, a colourless volatile flammable liquid which is produced by the natural fermentation of sugars; alcohol
  5. pH indicator made of a solution of several compounds
  6. a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame.
  7. The process of transforming ore into a metal is reversed as the metal is exposed to oxygen and water
  8. the product of acids and bases are water and... The product of acid and metals are hyrdogen and... the product of acid and carbonate is carbon dioxide, water and...
  9. A material that is burnt or used as a source of heat or power.
  10. value-free
  11. A chemical reaction that gives out heat
  12. An electron is removed from the nucleus during a chemical reaction.
  13. an indicator in acid–base titrations, C₂₀H₁₄O₄
  14. a natural substance that is not replenished with the speed at which it is consumed.
  15. A substance that changes color in the presence of a base or acid
  16. Often have a sour taste, ph lower than 7, give away hydrogen ions, conduct electricity when mixed with water, can neutralize bases, react with many metals
Down
  1. A natural indicator used by the British
  2. A compound of hydrogen and carbon. When burnt in unlimited are it produces carbon dioxide and water, when burnt in limited air is produces carbon monoxide.
  3. renewable energy derived from living materials.
  4. Often have a soapy feeling, ph higher than 7, naturalize acids, when dissolved in water they are called alkanes, have a bitter taste
  5. one that can be used repeatedly and does not run out because it is naturally replaced.
  6. the process of the reaction between a base and acid
  7. completely ionized in a solution
  8. A chemical reaction that absorbs heat
  9. Iron metal oxidizes to from ion oxide known as...
  10. CO2, a product of acid and carbonate
  11. Many of the molecules are dissolved in the set amount of solution
  12. A natural indicator that is a root vegetable.
  13. decreased concentration of a solute in a solution
  14. The material used in an experiment that creates the product

30 Clues: value-free • completely ionized in a solution • CO2, a product of acid and carbonate • A chemical reaction that absorbs heat • A natural indicator used by the British • A chemical reaction that gives out heat • A natural indicator that is a root vegetable. • an indicator in acid–base titrations, C₂₀H₁₄O₄ • renewable energy derived from living materials. • ...

Science Crossword 2014-09-25

Science Crossword crossword puzzle
Across
  1. is the chemical symbol for which element?
  2. orbits the nucleus of an atom?
  3. (around 78%):What is the main gas found in the air we breathe?
  4. sodium hydroxide (NaOH) an acid or base?
  5. is the fourth most abundant element in the universe in terms of mass?
  6. is H20 more commonly known as?
  7. New Zealand scientist Ernest Rutherford was awarded a Nobel Prize in which field?
  8. is the first element on the periodic table?
  9. Fission:A nuclear reaction where the nucleus of an atom splits into smaller parts is known as nuclear fission or nuclear fusion?
  10. or false? An electron carries a positive charge.
  11. is the chemical symbol for gold?
Down
  1. or false? Acids have a pH level below 7.
  2. of the same chemical element that have different atomic mass are known as?
  3. room temperature, what is the only metal that is in liquid form?
  4. or false? Bases have a pH level below 7.
  5. is the name given to substances that are initially involved in a chemical reaction?
  6. nucleus:What is the centre of an atom called?
  7. (around 1%):What is the third most common gas found in the air we breathe?

18 Clues: orbits the nucleus of an atom? • is H20 more commonly known as? • is the chemical symbol for gold? • or false? Acids have a pH level below 7. • or false? Bases have a pH level below 7. • sodium hydroxide (NaOH) an acid or base? • is the chemical symbol for which element? • is the first element on the periodic table? • nucleus:What is the centre of an atom called? • ...

biology vocab pt. 2 2022-09-19

biology vocab pt. 2 crossword puzzle
Across
  1. a chemical bond formed between 2 molecules when the carboxyl group of one molecule reacts with the amino group
  2. hydrophobic biological molecule composed mostly of carbon and hydrogen
  3. large molecule formed by joining smaller molecules together
  4. 2 or more atoms of the same element having different numbers of neutrons
  5. a submit of nucleric acid formed
  6. reactant to which an enzyme bonds
  7. substance that speeds up a chemical reaction by reducing the activation energy
  8. attractive forces between nolecules.
  9. compound whose atoms are held together by covalent bonds
Down
  1. complex macromolecule that stores and communicating genetic information
  2. substance disolved in solvent
  3. substance formed by a chemical reaction;located on right side of chemical equation
  4. organic compound containing carbon, hydrogen, and oxygen, in a ratio of one oxygen atom and two hydrogen atoms for every carbon atom
  5. large molecule formed from smaller repeating units of identical or nearly identical; compounds linked by covalent bodens
  6. molecule with opposite charged regions
  7. electrical attraction between two oppositely charged atoms or group of atoms
  8. substance in which a substance is dissolved

17 Clues: substance disolved in solvent • a submit of nucleric acid formed • reactant to which an enzyme bonds • attractive forces between nolecules. • molecule with opposite charged regions • substance in which a substance is dissolved • compound whose atoms are held together by covalent bonds • large molecule formed by joining smaller molecules together • ...

Photosynthesis and Cellular Respiration 2022-04-14

Photosynthesis and Cellular Respiration crossword puzzle
Across
  1. Plants use the sun's energy to convert water and carbon dioxide into sugars
  2. A starting material in a chemical reaction
  3. gas that is a reactant of photosynthesis and a waste product of cellular respiration
  4. the process by which cells use oxygen to release energy from glucose
Down
  1. green pigment used only in plants to asorb sunlight
  2. organelles that capture energy from sunlight and convert it into chemical enery for the plant cell to use
  3. C6H12O6
  4. gas that is a waste product of photosynthesis but a reactant of cellular respiration
  5. Found in the chemical bonds of sugar
  6. Ending materials in a chemical reaction.
  7. Powerhouse of the cell, organelle that is the site of ATP (energy) production
  8. H2O
  9. (adenosine triphosphate) main energy source that cells use for most of their work

13 Clues: H2O • C6H12O6 • Found in the chemical bonds of sugar • Ending materials in a chemical reaction. • A starting material in a chemical reaction • green pigment used only in plants to asorb sunlight • the process by which cells use oxygen to release energy from glucose • Plants use the sun's energy to convert water and carbon dioxide into sugars • ...

Science Vocab: Chemical Change 2025-04-02

Science Vocab: Chemical Change crossword puzzle
Across
  1. when a substance changes phase, but is still the same substance
  2. when an original substance is changed into something else
  3. the 4 changes that indicate a chemical change are temperature, the formation of precipitate, the formation of gas, and a change in _________
  4. how much a fluid resists flowing
  5. a phase change when a solid becomes a liquid
  6. a phase change when a solid becomes a gas
  7. when a chemical reaction in a solution creates a solid
  8. a phase change when a liquid becomes a solid
  9. when a chemical reaction absorbs heat
Down
  1. a phase change from a gas to a solid
  2. a phase change when a liquid becomes a gas
  3. when a chemical change produces heat
  4. the process of a gas changing into a liquid

13 Clues: how much a fluid resists flowing • a phase change from a gas to a solid • when a chemical change produces heat • when a chemical reaction absorbs heat • a phase change when a solid becomes a gas • a phase change when a liquid becomes a gas • the process of a gas changing into a liquid • a phase change when a solid becomes a liquid • ...

Enzyme Crossword Puzzle 2018-01-16

Enzyme Crossword Puzzle crossword puzzle
Across
  1. Reactants; Needed in order to make a product
  2. Heavy metals; Bonds with part of the enzyme and causes them to change shape
  3. The substrate(s) fit perfectly into the active site
  4. Refers to all chemical reactions of a cell
  5. Considered the non-protein portion;
  6. The substance that forms as a result of a reaction
  7. The process of proteins losing their structure, causing function to decrease; Happens in extreme state
  8. Enzyme "helper"; An example of a coenzyme
Down
  1. Where the substrates bind and undergo a chemical reaction
  2. Considered the protein portion; Its shape helps an enzyme speed up only one type of reaction
  3. Causes two reactants to collide with enough force that they react to release energy in order to drive the rest of the reaction
  4. Produces thyroxin; Helps increase metabolic rate
  5. Fits into the active site but doesn't react
  6. A protein that speeds up certain reactions
  7. Considered the "newer model"; Enzyme has the ability to alter its shape to help the substrate(s) fit better
  8. Produced by thyroid gland; Is a hormone

16 Clues: Considered the non-protein portion; • Produced by thyroid gland; Is a hormone • Enzyme "helper"; An example of a coenzyme • A protein that speeds up certain reactions • Refers to all chemical reactions of a cell • Fits into the active site but doesn't react • Reactants; Needed in order to make a product • Produces thyroxin; Helps increase metabolic rate • ...

Energy in Chemical Reactions 2023-02-12

Energy in Chemical Reactions crossword puzzle
Across
  1. Outcomes of a chemical reaction
  2. Process that converts light energy into chemical energy
  3. Products of photosynthesis
  4. Process that releases energy
  5. Respiration Process that releases energy by breaking down organic molecules
  6. Starting materials for a chemical reaction
Down
  1. Inputs for the process of photosynthesis
  2. Products of cellular respiration
  3. Process that absorbs energy
  4. molecules and O2 are the inputs for the process of cellular respiration

10 Clues: Products of photosynthesis • Process that absorbs energy • Process that releases energy • Outcomes of a chemical reaction • Products of cellular respiration • Inputs for the process of photosynthesis • Starting materials for a chemical reaction • Process that converts light energy into chemical energy • ...

Chemical Reactions 2014-05-22

Chemical Reactions crossword puzzle
Across
  1. The substances produced.
  2. AB-> A+B
  3. Reactions The process of chemical change.
  4. Replacement Metal-Metal or Halide-Halide. A+BC->AC+B
Down
  1. A+B->AB
  2. Substances that react.
  3. Replacement Inside and Outside switch. AB+CD-> AD+CB
  4. Arrow that shows change.
  5. Solid that forms in a double replacement reaction.
  6. Conservation of Mass In a chemical reaction, matter cannot be created or destroyed; it can only change form.

10 Clues: A+B->AB • AB-> A+B • Substances that react. • The substances produced. • Arrow that shows change. • Reactions The process of chemical change. • Solid that forms in a double replacement reaction. • Replacement Inside and Outside switch. AB+CD-> AD+CB • Replacement Metal-Metal or Halide-Halide. A+BC->AC+B • ...

reactions 2023-10-13

reactions crossword puzzle
Across
  1. reaction that forms water and carbon dioxide
  2. substances that start chemical reactions
  3. substances formed in a chemical reaction
  4. the seven ________ molecules never appear alone
  5. the process when new substances are formed
  6. two reactants combine to form a single product
Down
  1. representation of chemical reactions using element symbols
  2. two compounds exchanging cations or anions
  3. one element replaces another element in a compound
  4. a compound breaks into two or more parts

10 Clues: substances that start chemical reactions • substances formed in a chemical reaction • a compound breaks into two or more parts • two compounds exchanging cations or anions • the process when new substances are formed • reaction that forms water and carbon dioxide • two reactants combine to form a single product • the seven ________ molecules never appear alone • ...

Science Unit B 2014-11-03

Science Unit B crossword puzzle
Across
  1. 1 electron 1 proton and 0 neutrons
  2. a new substance produced in a chemical reaction
  3. occurs when oxygen reacts with a new substance to form a new substance and give off energy
  4. the mass of the reactants always equal the mass of the products
  5. absorbs heat
  6. organic catalyst
  7. hardest material on the Mohs' hardness scale
  8. a substance that reacts with another substance or substances to create something new
Down
  1. Workplace Hazardous Materials Information System
  2. used the word "Atomos"
  3. Slow chemical change that occurs when oxygen in the air reacts to metal
  4. no additional material is allowed to enter or leave
  5. Gas to Solid and vice versa
  6. substances that help a reaction proceed faster
  7. material is allowed to leave and enter
  8. studied chemical reactions
  9. experimented with the behavior of gases
  10. NaCl
  11. releases heat
  12. book describing the achievements of alchemists
  13. the 7 rows in the periodic table
  14. "indivisible'
  15. the last Alkali metal on the Periodic table of elements
  16. the 18 columns in the periodic table

24 Clues: NaCl • absorbs heat • releases heat • "indivisible' • organic catalyst • used the word "Atomos" • studied chemical reactions • Gas to Solid and vice versa • the 7 rows in the periodic table • 1 electron 1 proton and 0 neutrons • the 18 columns in the periodic table • material is allowed to leave and enter • experimented with the behavior of gases • ...

Matter Vocabulary 2017-06-09

Matter Vocabulary crossword puzzle
Across
  1. the center of the atom
  2. the substances on the right side of the periodic table are _________
  3. a solution
  4. have properties of metals and nonmetals
  5. a solid that forms when 2 liquids react
  6. part of the atom without a charge
  7. is made of 1 type of particle
  8. the more _____________ particles have the faster they move
  9. 2 atoms bonded together
  10. the substances on the left of the periodic table are _______
Down
  1. noble gases do not _______________
  2. the type of change that changes the identity of a substance
  3. the number of protons in the element
  4. the substances that go into a chemical reaction
  5. a mixture that is the same throughout
  6. matter cannot be created or ________
  7. a positively charged part of the atom
  8. negatively charged part of the atom
  9. is anything that has mass and takes up space
  10. organized on the periodic table
  11. mass/volume=__________
  12. the___________ on the periodic table share the same properties
  13. the substances that come out of a chemical reaction
  14. is made of Protons Neutrons and Electrons

24 Clues: a solution • the center of the atom • mass/volume=__________ • 2 atoms bonded together • is made of 1 type of particle • organized on the periodic table • part of the atom without a charge • noble gases do not _______________ • negatively charged part of the atom • the number of protons in the element • matter cannot be created or ________ • a mixture that is the same throughout • ...

Chapter 2 Crossword-Vivian Befus 2018-10-01

Chapter 2 Crossword-Vivian Befus crossword puzzle
Across
  1. The tendency of energy to disperse
  2. The attrition of water molecules for each other
  3. Pure substance made of only one kind of atom
  4. Class of organic compounds that serve as the building blocks for the information storage molecules: DNA and RNA
  5. The substance formed during a chemical reaction
  6. A measurement of the speed at which particles move
  7. Changes that don't change matters identity
  8. Nonpolar molecules
  9. Basic building blocks of matter
  10. Organic compounds made of carbones, hydrogens and oxygen
Down
  1. A naturally occurring catalyst, usually a protein
  2. A pure substance made of two or more elements chemically combined
  3. A substance that is present before a chemical reaction
  4. Attrition of particles in one substance for particles in a different substance
  5. A change in substances that results in one or more new substances being formed
  6. The immaterial stuff that gets things done
  7. A substance that provides a alternate route from reactants to products
  8. A class of organic compounds that serve as the building blocks of proteins
  9. Simple carbohydrate
  10. Stored chemical energy that holds two atoms together

20 Clues: Nonpolar molecules • Simple carbohydrate • Basic building blocks of matter • The tendency of energy to disperse • The immaterial stuff that gets things done • Changes that don't change matters identity • Pure substance made of only one kind of atom • The attrition of water molecules for each other • The substance formed during a chemical reaction • ...

Science Crossword 2023-12-06

Science Crossword crossword puzzle
Across
  1. A solid formed from two liquids, evidence of a chemical reaction
  2. Dull, brittle, poor conductor
  3. What is produced from a chemical change
  4. When something changes its composition, becomes a new substance
  5. Lustrous, malleable, good conductor
  6. A formula made from listing the elements in a substance, subscripts are used to show number of atoms of an element with the coefficient showing the number of molecules of a substance
  7. First in the calculator when calculating speed
  8. Small, located in the electron cloud
  9. Starting substance before a chemical change
  10. How to show when something is going fast in a distance\time graph
  11. Speed + Direction
Down
  1. Not moving, constant force
  2. For every action there is an equal and opposite reaction
  3. Moving, Accelerating
  4. An object at rest will stay at rest and an object in motion stays in motion unless acted upon by an unbalanced force
  5. Center of the atom
  6. Semiconductor
  7. The amount of time it takes for an object to go a certain distance
  8. Change in speed or direction
  9. The more massive something is, the more force is required to move it

20 Clues: Semiconductor • Speed + Direction • Center of the atom • Moving, Accelerating • Not moving, constant force • Change in speed or direction • Dull, brittle, poor conductor • Lustrous, malleable, good conductor • Small, located in the electron cloud • What is produced from a chemical change • Starting substance before a chemical change • First in the calculator when calculating speed • ...

Bonus Griffin LeBlanc 2024-05-01

Bonus Griffin LeBlanc crossword puzzle
Across
  1. For a PH of 7 you need strong acid and strong ____.
  2. the change in heat of the products from the reactants.
  3. adding energy is ____.
  4. a substance that speeds up a chemical reaction without undergoing any chemical change.
  5. the temperature and pressure at which the solid, liquid and gas forms of a substance coexist.
  6. the measure of the kinetic energy of particles in a sample of matter.
  7. substance that donates a proton.
  8. transition of a substance directly from solid to gas.
  9. More particles = _____ pressure
  10. Liquids ____ to form solids.
Down
  1. a device used to measure the energy absorbed or released as heat in a chemical reaction.
  2. transition of a substance directly from gas to solid.
  3. ATM pressure measured with a _____.
  4. biological catalysts that speed up the rate of reactions in the body
  5. releasing energy is ___.
  6. a compound that can act as either an acid or base.
  7. the total amount of energy.
  8. the amount of heat to raise 1 gram of substance by 1 degree C.
  9. substance that accepts a proton.
  10. Gases ___ to form liquids.

20 Clues: adding energy is ____. • releasing energy is ___. • Gases ___ to form liquids. • the total amount of energy. • Liquids ____ to form solids. • More particles = _____ pressure • substance that accepts a proton. • substance that donates a proton. • ATM pressure measured with a _____. • a compound that can act as either an acid or base. • ...

Unit Two Bio 2025-03-31

Unit Two Bio crossword puzzle
Across
  1. transport diffusion and osmosis are this type of membranet across a membrain
  2. any living thing
  3. system
  4. a uniform mixture of two or more substances
  5. the lipid tails of a phospholipid have this quality
  6. atoms combined to form these
  7. the basic unit of life
  8. the phosphate head of a phospholipid has this quality
  9. transport movement across a cell membrane from low to high concentrations
  10. a protein that speeds up chemical reactions
Down
  1. the molecule that will be going through a chemical reaction
  2. movement of molecules from areas of high consentrait to low concentrait
  3. site the location on an enyme where the substrait binds
  4. the smallest unit of all matter
  5. a group of different tissues working together
  6. movement of water from hight to low consentrations
  7. energy
  8. when the active site of an enzyme changes its shape due to high ph
  9. the cell membrane is made up of these molecules
  10. solution a type of solution when the solvent is water
  11. the result of a chemical reaction
  12. a group of similar cells
  13. permeable some things can pass through the cell membrane, but not everything
  14. molecules combined to form these

24 Clues: energy • system • any living thing • the basic unit of life • a group of similar cells • atoms combined to form these • the smallest unit of all matter • molecules combined to form these • the result of a chemical reaction • a uniform mixture of two or more substances • a protein that speeds up chemical reactions • a group of different tissues working together • ...

Digestion: Addison Harris 2025-10-27

Digestion: Addison Harris crossword puzzle
Across
  1. rhythmic movements of muscles
  2. removes water, potassium, and sodium from the waste
  3. a storage form of glucose
  4. the use of nutrients to provide energy
  5. the blood sugar that is the body's basic fuel
  6. the churned food that is turned into a thick liquid
  7. helps to break down food
  8. helps the body digest and absorb fats
  9. a gland connected to the small intestine
  10. a chemical reaction that molecules combine with oxygen
  11. a special protein that helps a chemical reaction take place
Down
  1. the part of the digestive tract that connects the mouth and the stomach
  2. helps you taste food and change carbohydrates into sugars
  3. a mixture of enzymes made by the pancreas
  4. the amount of energy needed to raise the temperature of 1 kg of water
  5. the inner wall of the small intestine has folds covered with billions of tiny projections
  6. the process by which nutrients move into the bloodstream
  7. the mechanical and chemical process of breaking down food
  8. the energy you need to maintain automatic processes
  9. works with other juices to break down food

20 Clues: helps to break down food • a storage form of glucose • rhythmic movements of muscles • helps the body digest and absorb fats • the use of nutrients to provide energy • a gland connected to the small intestine • a mixture of enzymes made by the pancreas • works with other juices to break down food • the blood sugar that is the body's basic fuel • ...

𝐂𝐡𝐞𝐦𝐢𝐜𝐚𝐥 𝐑𝐞𝐚𝐜𝐭𝐢𝐨𝐧𝐬 𝐀𝐧𝐝 𝐄𝐪𝐮𝐚𝐭𝐢𝐨𝐧𝐬 2024-05-12

𝐂𝐡𝐞𝐦𝐢𝐜𝐚𝐥 𝐑𝐞𝐚𝐜𝐭𝐢𝐨𝐧𝐬 𝐀𝐧𝐝 𝐄𝐪𝐮𝐚𝐭𝐢𝐨𝐧𝐬 crossword puzzle
Across
  1. a common effect of aerial oxidization on metals
  2. these have the ability to oxidize other substances by accepting electrons from them
  3. reaction of acid and base to form water and salt
  4. reaction when two compounds change their ions
  5. A substance which loses electrons to other substances in a redox reaction and gets oxidized to a higher valency state
  6. a chemical reaction occurring in an aqueous solution where two ionic bonds combine, resulting in the formation of an insoluble salt
  7. addition of hydrogen
  8. a reaction which takes in heat
  9. a reaction in which a complex molecule breaks down to form 2 or more simpler molecules
Down
  1. a reaction in which 2 or more reactants combine to form a single product
  2. addition of oxygen
  3. a reaction in which a highly reactive metal displaces a less reactive metal from its salt solution
  4. process of using electricity to split water into hydrogen and oxygen
  5. oxidation of fats and oils
  6. a reaction which gives out heat

15 Clues: addition of oxygen • addition of hydrogen • oxidation of fats and oils • a reaction which takes in heat • a reaction which gives out heat • reaction when two compounds change their ions • a common effect of aerial oxidization on metals • reaction of acid and base to form water and salt • process of using electricity to split water into hydrogen and oxygen • ...

PHYSICAL SCIENCE / CHEMICAL REACTIONS 2022-10-18

PHYSICAL SCIENCE / CHEMICAL REACTIONS crossword puzzle
Across
  1. Li2O
  2. Al2S3
  3. WHEN A CHEMICAL EQUATION IS BALANCED, THERE ARE ___ NUMBERS OF ATOMS ON BOTH SIDES.
  4. OUTERMOST ELECTRONS THAT FORM CHEMICAL BONDS.
  5. USED TO BALANCE CHEMICAL EQNS.
  6. RIGHT SIDE OF CHEMICAL EQN.
  7. ELEMENTS ON THE PT ARE ARRANGED BY ____ ATOMIC NUMBER.
  8. COLUMNS ON THE PT
  9. SELENIUM MONOXIDE
  10. CaCl2
  11. SODIUM CHLORIDE
  12. NO2
  13. NUMBER OF PROTONS IN ATOMIC NUCLEI.
  14. WATER
  15. MOST OF THE ELEMENTS ON THE PT ARE THESE.
  16. MASS IS ___ IN CHEMICAL REACTIONS.
  17. CHEMICAL REACTIONS THAT ABSORB HEAT.
  18. MADE OF TWO OR MORE ATOMS. CAN BE SAME OR DIFFERENT.
  19. ROWS ON THE PT
  20. MADE OF TWO OR MORE DIFFERENT ELEMENTS.
  21. CHEMICAL BOND THAT FORMS WHEN ATOMS SHARE e.
Down
  1. A + BC => AB + C
  2. CHEMICAL EQUATIONS ARE ___ TO SHOW AMOUNTS OF REACTANTS AND PRODUCTS.
  3. A + B => AB
  4. WHAT HAPPENS TO ATOMS IN CHEMICAL REACTIONS.
  5. CCl4
  6. LEFT SIDE OF CHEMICAL EQN.
  7. CHEMICAL REACTIONS THAT GIVE OFF HEAT.
  8. ATOMS THAT HAVE LOST OR GAINED ELECTRON(S).
  9. REQUIRED FOR ALL CHANGES.
  10. AB => A + B
  11. REACTION THAT OCCURS WHEN SUBSTANCES BURN IN AIR.
  12. AB + CD => AC + BD
  13. IF YOU SAY THIS IS TOO HARD, YOU ARE ___.
  14. SUM OF PROTONS AND NEUTRONS IN ATOMIC NUCLEI.
  15. CHEMICAL BOND THAT FORMS WHEN ATOMS TRANSFER e.

36 Clues: NO2 • Li2O • CCl4 • Al2S3 • CaCl2 • WATER • A + B => AB • AB => A + B • ROWS ON THE PT • SODIUM CHLORIDE • A + BC => AB + C • COLUMNS ON THE PT • SELENIUM MONOXIDE • AB + CD => AC + BD • REQUIRED FOR ALL CHANGES. • LEFT SIDE OF CHEMICAL EQN. • RIGHT SIDE OF CHEMICAL EQN. • USED TO BALANCE CHEMICAL EQNS. • MASS IS ___ IN CHEMICAL REACTIONS. • NUMBER OF PROTONS IN ATOMIC NUCLEI. • ...

PHYSICAL SCIENCE / CHEMICAL REACTIONS 2022-10-18

PHYSICAL SCIENCE / CHEMICAL REACTIONS crossword puzzle
Across
  1. COLUMNS ON THE PT
  2. LEFT SIDE OF CHEMICAL EQN.
  3. ROWS ON THE PT
  4. CHEMICAL REACTIONS THAT GIVE OFF HEAT.
  5. WHEN A CHEMICAL EQUATION IS BALANCED, THERE ARE ___ NUMBERS OF ATOMS ON BOTH SIDES.
  6. NUMBER OF PROTONS IN ATOMIC NUCLEI.
  7. CCl4
  8. Li2O
  9. ELEMENTS ON THE PT ARE ARRANGED BY ____ ATOMIC NUMBER.
  10. MOST OF THE ELEMENTS ON THE PT ARE THESE.
  11. SODIUM CHLORIDE
  12. CHEMICAL REACTIONS THAT ABSORB HEAT.
  13. CHEMICAL BOND THAT FORMS WHEN ATOMS SHARE e.
  14. RIGHT SIDE OF CHEMICAL EQN.
  15. A + BC => AB + C
  16. SELENIUM MONOXIDE
  17. A + B => AB
  18. CaCl2
  19. REACTION THAT OCCURS WHEN SUBSTANCES BURN IN AIR.
  20. CHEMICAL EQUATIONS ARE ___ TO SHOW AMOUNTS OF REACTANTS AND PRODUCTS.
Down
  1. Al2S3
  2. AB + CD => AC + BD
  3. WATER
  4. SUM OF PROTONS AND NEUTRONS IN ATOMIC NUCLEI.
  5. REQUIRED FOR ALL CHANGES.
  6. WHAT HAPPENS TO ATOMS IN CHEMICAL REACTIONS.
  7. CHEMICAL BOND THAT FORMS WHEN ATOMS TRANSFER e.
  8. OUTERMOST ELECTRONS THAT FORM CHEMICAL BONDS.
  9. USED TO BALANCE CHEMICAL EQNS.
  10. NO2
  11. ATOMS THAT HAVE LOST OR GAINED ELECTRON(S).
  12. AB => A + B
  13. MADE OF TWO OR MORE ATOMS. CAN BE SAME OR DIFFERENT.
  14. MASS IS ___ IN CHEMICAL REACTIONS.
  15. IF YOU SAY THIS IS TOO HARD, YOU ARE ___.
  16. MADE OF TWO OR MORE DIFFERENT ELEMENTS.

36 Clues: NO2 • CCl4 • Li2O • Al2S3 • WATER • CaCl2 • AB => A + B • A + B => AB • ROWS ON THE PT • SODIUM CHLORIDE • A + BC => AB + C • COLUMNS ON THE PT • SELENIUM MONOXIDE • AB + CD => AC + BD • REQUIRED FOR ALL CHANGES. • LEFT SIDE OF CHEMICAL EQN. • RIGHT SIDE OF CHEMICAL EQN. • USED TO BALANCE CHEMICAL EQNS. • MASS IS ___ IN CHEMICAL REACTIONS. • NUMBER OF PROTONS IN ATOMIC NUCLEI. • ...

weathering crossword 2012-11-04

weathering crossword crossword puzzle
Across
  1. earths surface changes by chemical reaction
  2. chemical reaction, that occurs when carbonic acid reacts with certain minerals
  3. process where weathered rock and soil are transported from one place to another
  4. breaking down earths surface either by a chemical reaction or a physical mean
Down
  1. when a new material is made by oxygen reacting with another substance
  2. the broken down pieces of a rock
  3. heating and cooling of rocks causing them to flake or peel
  4. earths surface broken down by physical means
  5. process of putting down material eroded away from another place
  6. repeated freezing and thawing causing the rock to break apart

10 Clues: the broken down pieces of a rock • earths surface changes by chemical reaction • earths surface broken down by physical means • heating and cooling of rocks causing them to flake or peel • repeated freezing and thawing causing the rock to break apart • process of putting down material eroded away from another place • ...

Science Review :) 2021-01-11

Science Review :) crossword puzzle
Across
  1. Substances present at the start of a chemical reaction are called
  2. Which particle controls "chemical properties" = bonding/reacting with other atoms?
  3. Group 7?
  4. more energy is used to break bonds in reactants than is released when bonds form in products. These reactions absorb energy from the environment.
Down
  1. the type of reaction of burning fuel to release energy
  2. a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei
  3. When an atom donates or accepts an electron(s), this forms
  4. The smallest particle into which an element can be divided and still be the same substance is
  5. a _________ reaction is when reactants combine/react to give you products, as chemical bonds break and form.
  6. Which subatomic particle has a neutral charge?
  7. The horizontal row on the periodic table is called

11 Clues: Group 7? • Which subatomic particle has a neutral charge? • The horizontal row on the periodic table is called • the type of reaction of burning fuel to release energy • When an atom donates or accepts an electron(s), this forms • Substances present at the start of a chemical reaction are called • ...

Enzyme Crossword Puzzle 2018-01-16

Enzyme Crossword Puzzle crossword puzzle
Across
  1. The process of proteins losing their structure, causing function to decrease; Happens in extreme state
  2. Considered the protein portion; Its shape helps an enzyme speed up only one type of reaction
  3. Heavy metals; Bonds with part of the enzyme and causes them to change shape
  4. A protein that speeds up certain reactions
  5. Considered the non-protein portion;
  6. Refers to all chemical reactions of a cell
Down
  1. The substrate(s) fit perfectly into the active site
  2. Causes two reactants to collide with enough force that they react to release energy in order to drive the rest of the reaction
  3. Where the substrates bind and undergo a chemical reaction
  4. Fits into the active site but doesn't react
  5. Produces thyroxin; Helps increase metabolic rate
  6. Enzyme "helper"; An example of a coenzyme
  7. Produced by thyroid gland; Is a hormone
  8. Considered the "newer model"; Enzyme has the ability to alter its shape to help the substrate(s) fit better
  9. Reactants; Needed in order to make a product
  10. The substance that forms as a result of a reaction

16 Clues: Considered the non-protein portion; • Produced by thyroid gland; Is a hormone • Enzyme "helper"; An example of a coenzyme • A protein that speeds up certain reactions • Refers to all chemical reactions of a cell • Fits into the active site but doesn't react • Reactants; Needed in order to make a product • Produces thyroxin; Helps increase metabolic rate • ...

Energy and Nutrition 2023-11-03

Energy and Nutrition crossword puzzle
Across
  1. grow and repair
  2. 2 sugars
  3. right side of reaction
  4. chemical reaction in the bodys cells that change food into energy
  5. small molecules such as amino acids,sugars, and fatty acids
  6. breaking down glucose to produce ATP(energy)
  7. energy storage
  8. left side of reaction
  9. a macromolecule that is always in a one to two ratio
Down
  1. helps speed up reaction (ends in ace)
  2. a large molecule such as oxygen, carbon, and hydrogen
  3. 1 sugar
  4. a macromolecule with lots of energy

13 Clues: 1 sugar • 2 sugars • energy storage • grow and repair • left side of reaction • right side of reaction • a macromolecule with lots of energy • helps speed up reaction (ends in ace) • breaking down glucose to produce ATP(energy) • a macromolecule that is always in a one to two ratio • a large molecule such as oxygen, carbon, and hydrogen • ...

Unit II Vocabulary 2022-09-21

Unit II Vocabulary crossword puzzle
Across
  1. a link between two atoms
  2. the center of an atom
  3. the smallest portion of a compound that displays its properties
  4. process that changes, or transforms, one set of chemicals into another set of chemicals
  5. hydrocarbons that contain only single bonds
  6. the average mass of the atom in the element
  7. the process of two different atoms sharing an electron
  8. a negatively charged ion
  9. energy that is needed to get a reaction started
  10. elements or compounds produced by a chemical reaction
  11. the synthesis in living organisms of more complex substances from simpler ones
  12. the basic unit of matter
  13. an atom that has a positive or negative charge
  14. elements or compounds that enter into a chemical reaction
  15. reactant of an enzyme-catalyzed reaction
  16. the connection between two or more different elements
  17. protein catalyst that speeds up the rate of specific biological reactions
  18. a subunit of which nucleic acids are composed
  19. compound made up of carbon, hydrogen, and oxygen atoms
  20. the process of an electron moving from one atom to another
  21. a covalent bond formed between two amino acids
  22. a macromolecule that contains carbon, hydrogen, oxygen, and nitrogen
  23. the attraction between two oppositely charged molecules
Down
  1. electrons contained in the outer shell of an atom
  2. the breaking down in living organisms of more complex substances into simpler ones, with the release of energy
  3. macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
  4. a small chemical compound that makes up a polymer
  5. a chart of all the elements in numerical order based on how many protons they have
  6. molecules made up of multiple monomers
  7. substance that speeds up the rate of a chemical reaction
  8. hydrocarbons that contain double or triple carbon
  9. a macromolecule made mostly from carbon and hydrogen atoms
  10. the number of protons in a nucleus
  11. a substance that contains only one type of an atom
  12. the process of many molecules gathering together to create larger molecules
  13. any substance that is composed of two molecules of simple sugars linked to each other
  14. simple sugar molecule
  15. a carbohydrate whose molecules consist of a number of sugar molecules bonded together
  16. a compound with an amino group on one end and a carboxyl group on the other
  17. a compound that contains hydrocarbons

40 Clues: the center of an atom • simple sugar molecule • a link between two atoms • a negatively charged ion • the basic unit of matter • the number of protons in a nucleus • a compound that contains hydrocarbons • molecules made up of multiple monomers • reactant of an enzyme-catalyzed reaction • hydrocarbons that contain only single bonds • the average mass of the atom in the element • ...

CHEMISTRY CROSSWORD PUZZLE 2025-07-21

CHEMISTRY CROSSWORD PUZZLE crossword puzzle
Across
  1. A negatively charged particle that moves around the nucleus.
  2. A phenomenon where a compound exists in two forms by the shifting of a hydrogen atom and a double bond.
  3. The chemical decomposition of a substance by passing electric current through it.
  4. A substance with a sour taste and pH less than 7; turns blue litmus red.
  5. "Makes up most of the air we breathe, but we can't use it directly."
  6. A neutral particle found in the nucleus of an atom.
  7. An energy level where electrons revolve around the nucleus in an atom.
  8. The process of forming solid crystals from a solution.
  9. Mass per unit volume; determines how heavy something is for its size.
  10. A unit of concentration defined as moles of solute per liter of solution.
  11. A state in a chemical reaction where forward and reverse reactions occur at the same rate.
  12. The amount of space an object or substance occupies.
  13. A fixed circular path in Bohr’s model where electrons revolve around the nucleus.
Down
  1. A chemical reaction in which a substance burns in oxygen to release heat.
  2. Regions in an atom where there is a high probability of finding electrons.
  3. Substance that speeds up a reaction without being used up
  4. A combination of two or more substances that do not chemically combine.
  5. Two or more atoms bonded together.
  6. The existence of an element in more than one physical form in the same state (like diamond )
  7. The smallest unit of matter that retains the properties of an element.
  8. Unequal sharing of electrons in a molecule causes this type of charge separation.
  9. A slow chemical reaction between iron, water, and oxygen.
  10. A mixture of two or more metals, or a metal and a non-metal.
  11. The process in which a single ligand forms multiple bonds with a central metal ion.
  12. Atom or molecule with an electric charge.
  13. A heavy, poisonous metal.
  14. A solid substance with a regular and repeating arrangement of particles.
  15. The mixing of atomic orbitals to form new orbitals for bonding.
  16. A pure substance made up of only one type of atom.
  17. A reaction involving both oxidation and reduction."

30 Clues: A heavy, poisonous metal. • Two or more atoms bonded together. • Atom or molecule with an electric charge. • A pure substance made up of only one type of atom. • A neutral particle found in the nucleus of an atom. • A reaction involving both oxidation and reduction." • The amount of space an object or substance occupies. • ...

CH.12 BASICS OF CHEMISTRY 2022-06-29

CH.12 BASICS OF CHEMISTRY crossword puzzle
Across
  1. is a liquid that has evaporated into a gas-like state.
  2. evaporate easily, such as isopropyl alcohol (rubbing alcohol) and ethyl alcohol (hairspray and alcoholic beverages).
  3. is a ingredient that brings two normally incompatible materials together and binds them into a uniform and fairly stable blend.
  4. pH above 7.
  5. is a chemical reaction in which a significant amount of heat is released.
  6. is a sweet, colorless, oily substance.
  7. is any substance that occupies space and has mass (weight).
  8. is a chemical combination of atoms of the same element, in fixed proportions; the air we breathe.
  9. are physical mixture of one or more types of solids.
  10. are chemical compounds of two or more atoms of different elements, in fixed
  11. the surfactant is hydrophilic, or water-loving, and dissolves in water.
  12. is the separation of an atom or molecule into positive and negative ions.
  13. tail of the surfactant oil-loving, and dissolves in oil.
  14. is the physical combination of matter in any proportion.
  15. is a stable physical mixture of two or more substances in a solvent.
  16. is the substance, usually liquid, which dissolves another substance to form a solution, with no change in chemical composition.
  17. is a measure of the acidity and alkalinity of a substance.
  18. is the study of substances that do not contain the element carbon but may contain the element hydrogen.
  19. is a colorless gas with a pungent odor that is composed of hydrogen and nitrogen.
  20. is an atom or molecule that carries an electrical charge.
  21. is a substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound.
  22. is the rapid oxidation of a substance accompanied by the production of heat and light.
  23. are unstable physical mixtures of undissolved particles in a liquid.
  24. is a chemical combination of matter in definite (fixed) proportions.
Down
  1. is an alpha hydroxyl acid used in exfoliation and to lower pH of products.
  2. are characteristics that can be determined without a chemical reaction and that do not involve a chemical change in the substance.
  3. are characteristics that can only be determined by a chemical reaction and a chemical change in the substance.
  4. are substances that allow oil and water to mix, or emulsify.
  5. When a solution indicates a pH below.
  6. is a special type of oil used in hair conditioners, water-resistant lubricants for the skin, and nail polish dryers.
  7. the science that deals with the composition, structures, and properties of matter and how matter changes under different conditions.
  8. is a colorless liquid or white crystals with a strong unpleasant odor that is used in permanent waving solutions to contract and close the hair cuticle.
  9. is an ion with a positive electrical charge.
  10. the study of substances that contain the element carbon. All living things or things that were once alive, whether they are plants or animals, contain carbon.
  11. is an ion with a negative electrical charge.
  12. are not capable of being mixed to form stable solutions.
  13. also known as redox, is a chemical reaction in which oxidation and reduction take place at the same time.
  14. is a change in the form without forming a new substance.
  15. is a chemical combination of two or more atoms in definite (fixed) proportions.
  16. is the dissolved substance in a solution.
  17. have a definite shape, volume, and weight.
  18. their chemical relativity to the hydroxide ion (OH2). Term is interchangeable with base.Have a pH above 7.
  19. have a definite volume and weight but not a definite shape.
  20. are mutually soluble, meaning that they can be mixed together to form clear solutions.
  21. are alkaline substances used to neutralize acids or raise the pH of many hair products.
  22. subatomic particles with no charge.
  23. is the simplest form of chemical matter.
  24. is a change in a substance’s chemical composition.
  25. is chemical reaction that combines a substance with oxygen to produce an oxide.
  26. subatomic particles with a positive charge.
  27. is an unstable physical mixture of two or more immiscible substances (substances that normally will not stay blended) plus a special ingredient called an emulsifier.
  28. do not have a definite volume or shape.
  29. is a basic unit of matter with a nucleus.

53 Clues: pH above 7. • subatomic particles with no charge. • When a solution indicates a pH below. • is a sweet, colorless, oily substance. • do not have a definite volume or shape. • is the simplest form of chemical matter. • is the dissolved substance in a solution. • is a basic unit of matter with a nucleus. • have a definite shape, volume, and weight. • ...

Nuclear Energy Vocabulary Crossword Puzzle 2023-11-08

Nuclear Energy Vocabulary Crossword Puzzle crossword puzzle
Across
  1. An electromagnetic radiation of the shortest wavelength and highest energy.
  2. Number The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
  3. A helium nucleus emitted by some radioactive substances, originally regarded as a ray.
  4. A fast-moving electron emitted by radioactive decay of substances.
  5. The center part of an atom which holds the protons and neutrons.
  6. A chemical element with the same number of protons but with different numbers of neutrons and atomic masses.
  7. A subatomic particle with a positive electrical charge.
Down
  1. The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
  2. Reaction A chemical reaction or other process in which the products themselves promote or spread the reaction, which under certain conditions may accelerate dramatically.
  3. The total number of protons and neutrons in a nucleus.
  4. The time it takes for half of a radioactive substance to decay.
  5. A nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy.
  6. A subatomic particle of about the same mass as a proton but without an electric charge.
  7. A nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.

14 Clues: The total number of protons and neutrons in a nucleus. • A subatomic particle with a positive electrical charge. • The time it takes for half of a radioactive substance to decay. • The center part of an atom which holds the protons and neutrons. • A fast-moving electron emitted by radioactive decay of substances. • ...

Matter 1 Crossword Puzzle 2018-04-13

Matter 1 Crossword Puzzle crossword puzzle
Across
  1. substances that are ductile, lustrous, and good conductors of electricity and heat
  2. a transformation of elements or compounds
  3. a table of the chemical elements arranged in order of atomic number
  4. a substance that takes part in and undergoes change during a reaction
  5. the determining factor of an element’s identity
  6. the amount of space a fluid occupies
  7. salt in a saltwater solution
  8. ex: Fe, O, N, Au, Na, Cl
  9. substances that are brittle, not lustrous, and poor conductors of electricity and heat.
  10. mixtures with uniform distribution
  11. ex: balsamic vinaigrette, trail mix, pizza, sand
  12. a homogeneous mixture composed of two or more substances.
  13. elements or compounds that exist prior to a chemical reaction
  14. everything that has mass and takes up space
Down
  1. the number of protons in the nucleus of an atom, which determines the chemical properties of an element
  2. matter can’t be destroyed or created, they can only be changed
  3. a substance that cannot be broken down by chemical means
  4. rows on the periodic table of elements characterized by the same number of electron shells
  5. water in a saltwater solution
  6. the left side of the periodic table has this quality more than the right side groups 1 and 7 have this quality the most.
  7. substances that are made of only one type of atom or only one type of molecule
  8. the number of protons and neutrons in an atom
  9. columns on the periodic table of elements characterized by the same number of valence electrons
  10. a substance formed when two or more chemical elements are chemically bonded together.
  11. the smallest particle of an atom
  12. when elements are combined physically
  13. substances that have the characteristics of both metals and nonmetals
  14. how much matter something contains
  15. a group of atoms that can be all the same
  16. the smallest unit of matter

30 Clues: ex: Fe, O, N, Au, Na, Cl • the smallest unit of matter • salt in a saltwater solution • water in a saltwater solution • the smallest particle of an atom • mixtures with uniform distribution • how much matter something contains • the amount of space a fluid occupies • when elements are combined physically • a transformation of elements or compounds • ...

Life's Processes Vocabluary Work 2025-03-04

Life's Processes Vocabluary Work crossword puzzle
Across
  1. A process that all living things do, involving glucose turning into energy.
  2. Has 3 forms, Liquid Solid Gas
  3. A type of sugar plants produce during PS
  4. The molecules you start with in a chemical reaction.
  5. A process that plants use to form glucose.
  6. Can be found as Thermal, or ATP energy in PS and CR
Down
  1. Can happen when the PH scale of something is changed.
  2. Happens when a form of matter is changed.
  3. How molecules are the same number on each side after a chemical reaction.
  4. The molecules you end with in a chemical reaction.

10 Clues: Has 3 forms, Liquid Solid Gas • A type of sugar plants produce during PS • Happens when a form of matter is changed. • A process that plants use to form glucose. • The molecules you end with in a chemical reaction. • Can be found as Thermal, or ATP energy in PS and CR • The molecules you start with in a chemical reaction. • ...

chemmmmmmmmmmmmmmmmmmmmmmmmmmmm 2022-02-02

chemmmmmmmmmmmmmmmmmmmmmmmmmmmm crossword puzzle
Across
  1. a measure of how much a substance reacts when it is mixed with another substance
  2. a reaction where energy is released
  3. a substance that has been disolved in an other substance
  4. a glas or plastic container
  5. an atom that has gained or lost one or more electrons
Down
  1. an atom that receives electrons to form a chemical substance
  2. any basic substances that is used in or produced by a reaction involving changes in the molecular structure
  3. a set of at least two atoms chemically bonded together.
  4. smallest unit of a chemical
  5. a reaction where energy is taken from the environment

10 Clues: smallest unit of a chemical • a glas or plastic container • a reaction where energy is released • a reaction where energy is taken from the environment • an atom that has gained or lost one or more electrons • a set of at least two atoms chemically bonded together. • a substance that has been disolved in an other substance • ...

Unit 3 2018-09-11

Unit 3 crossword puzzle
Across
  1. Reaction to uses water to break bonds
  2. Water hating; nonpolar and not soluble in water
  3. Reaction that removes water to form a bond
  4. Macromolecule that is main source of energy
  5. Type of protein that catalyzes reactions
  6. Macromolecule made of amino acids
  7. site on enzyme where the substrate fits and reaction occurs
  8. monomer of nucleic acids
  9. Type of bond between amino acids to form a polypeptide
Down
  1. molecule that an enzyme acts on
  2. Monomer of carbohydrates
  3. Substance that speeds up chemical reaction but is not used up or changed
  4. Chain of monomers; macromolecule
  5. monomer of proteins
  6. Macromolecule that includes DNA and RNA
  7. Water loving; polar and soluble in water
  8. Building blocks of macromolecules
  9. Macromolecule that is made up of hydrogen and carbon and is nonpolar

18 Clues: monomer of proteins • Monomer of carbohydrates • monomer of nucleic acids • molecule that an enzyme acts on • Chain of monomers; macromolecule • Macromolecule made of amino acids • Building blocks of macromolecules • Reaction to uses water to break bonds • Macromolecule that includes DNA and RNA • Water loving; polar and soluble in water • ...

Vocab6b 2017-04-06

Vocab6b crossword puzzle
Across
  1. Electron- electrons on the outermost energy level of an atom that determine the reactivity of the atom.
  2. Reaction- A chemical reaction that requires an input of energy and usually feels cold when it absorbs heat in the reaction.
  3. of Conservation of Mass- states that matter is neither created nor destroyed in ordinary chemical and physical changes.
  4. vertical column of elements on the Periodic Table that have similar physical and chemical properties.
Down
  1. elements that have some properties of metals and non-metals and are found along the zigzag on the Periodic Table.
  2. Reaction- A chemical reaction in which heat is released and usually feels warm when the heat is released from the reaction previous next.
  3. Bond- an interaction that holds atoms together.
  4. horizontal row of elements on the Periodic Table that have the same number of electron shells.

8 Clues: Bond- an interaction that holds atoms together. • horizontal row of elements on the Periodic Table that have the same number of electron shells. • vertical column of elements on the Periodic Table that have similar physical and chemical properties. • Electron- electrons on the outermost energy level of an atom that determine the reactivity of the atom. • ...

Chapter 13 and 14 Terms 2025-09-10

Chapter 13 and 14 Terms crossword puzzle
Across
  1. Biological catalysts.
  2. Describes a reaction in which two reactant molecules collide.
  3. Water fearing.
  4. A substance that increases the rate of a chemical reaction without itself being consumed.
  5. The number of molecules involved in a specific step in a reaction mechanism.
  6. A catalysis in which the reactants and the catalyst are in the same phase.
Down
  1. Water loving.
  2. Involving three reactant molecules.
  3. A catalysis in which the reactants and the catalyst are in different phases.
  4. A chemical species that is produced in one step of a reaction mechanism and consumed in a subsequent step.

10 Clues: Water loving. • Water fearing. • Biological catalysts. • Involving three reactant molecules. • Describes a reaction in which two reactant molecules collide. • A catalysis in which the reactants and the catalyst are in the same phase. • A catalysis in which the reactants and the catalyst are in different phases. • ...

s c i e n c e 2022-01-03

s c i e n c e crossword puzzle
Across
  1. releases heat
  2. breaking down
  3. chemical that speeds up the reaction
  4. one element takes the place of another
  5. part that you can
  6. brings change
  7. two elements take the place of another
Down
  1. changes in the experiment
  2. burning
  3. a response
  4. doesn't change in the experiment
  5. the space something takes up
  6. combining part
  7. amount of matter
  8. absorbs heat

15 Clues: burning • a response • absorbs heat • releases heat • breaking down • brings change • combining part • amount of matter • part that you can • changes in the experiment • the space something takes up • doesn't change in the experiment • chemical that speeds up the reaction • one element takes the place of another • two elements take the place of another

1 2025-03-03

1 crossword puzzle
Across
  1. the process that animals use to break down glucose into energy and produce co2
  2. contains carbon,water,and oxygen
  3. matter cannot be created or destroyed in a chemical reaction
  4. when an element turns to another state of matter
Down
  1. the outcome of a chemical reaction
  2. when molecules intercat with eachother and exchange molecules and atoms
  3. anything that has volume and takes up space
  4. needed to do everyday tasks and is one of the ingrdients in photosynthesis(hint sunlight)
  5. the proccess of that plants do to make glucose and oxygem
  6. the inputs of a chemical reaction

10 Clues: contains carbon,water,and oxygen • the inputs of a chemical reaction • the outcome of a chemical reaction • anything that has volume and takes up space • when an element turns to another state of matter • the proccess of that plants do to make glucose and oxygem • matter cannot be created or destroyed in a chemical reaction • ...

Ethan 13 2018-03-07

Ethan 13 crossword puzzle
Across
  1. when reaction and it’s reverse act at the same rate.
  2. Bond Energy is also known as
  3. this reaction creates oxides
  4. if changed, the equilibrium shifts to oppose change, until new equilibrium is reached.
  5. In an exothermic reaction there is a net release of
  6. An____is a chemical that donates a hydrogen ion, H+.
Down
  1. No atoms are gained or lost during any reaction.
  2. When water behaves as an acid, what does it lose?
  3. there is a net absorption of energy.
  4. A_____ is a chemical that accepts a hydrogen ion, H+.

10 Clues: Bond Energy is also known as • this reaction creates oxides • there is a net absorption of energy. • No atoms are gained or lost during any reaction. • When water behaves as an acid, what does it lose? • In an exothermic reaction there is a net release of • when reaction and it’s reverse act at the same rate. • An____is a chemical that donates a hydrogen ion, H+. • ...

s c i e n c e 2022-01-03

s c i e n c e crossword puzzle
Across
  1. releases heat
  2. breaking down
  3. chemical that speeds up the reaction
  4. one element takes the place of another
  5. part that you can
  6. brings change
  7. two elements take the place of another
Down
  1. changes in the experiment
  2. burning
  3. a response
  4. doesn't change in the experiment
  5. the space something takes up
  6. combining part
  7. amount of matter
  8. absorbs heat

15 Clues: burning • a response • absorbs heat • releases heat • breaking down • brings change • combining part • amount of matter • part that you can • changes in the experiment • the space something takes up • doesn't change in the experiment • chemical that speeds up the reaction • one element takes the place of another • two elements take the place of another

Chemical Reaction Vocab. Quiz 2022-04-28

Chemical Reaction Vocab. Quiz crossword puzzle
Across
  1. boiling water in an uncovered pot is an example of an
  2. Na + Cl -> NaCl is an example of a _______ ______________
  3. a substance separated from a solution by chemical or physical change usually as an insoluble solid
  4. combining water, iron filings, and calcium carbonate to produce heat is an example of an _______ ______________
  5. a water bottle with a lid on it is an example of a _________ _________ because nothing can escape
Down
  1. happens when one chemical substance is transformed into one or more different substances as a result of a change in the arrangement of atoms, such as when iron becomes rust
  2. melting ice cubes is an example of an ____________ _______________
  3. a solid, liquid, and a gas are examples of the _____ of matter
  4. What kind of energy is produced by a fire?
  5. saved; nothing lost or gained

10 Clues: saved; nothing lost or gained • What kind of energy is produced by a fire? • boiling water in an uncovered pot is an example of an • Na + Cl -> NaCl is an example of a _______ ______________ • a solid, liquid, and a gas are examples of the _____ of matter • melting ice cubes is an example of an ____________ _______________ • ...

Love: A chemical reaction? 2022-10-25

Love: A chemical reaction? crossword puzzle
Across
  1. to be a basic component of something
  2. an opportunity
  3. to cause something
  4. to want something badly
  5. a rebellious attitude; to disobey
  6. when two people feel or do the same
Down
  1. a relationship of love
  2. to invite someone to join a group
  3. more than enough; a lot
  4. preference

10 Clues: preference • an opportunity • to cause something • a relationship of love • more than enough; a lot • to want something badly • to invite someone to join a group • a rebellious attitude; to disobey • when two people feel or do the same • to be a basic component of something

Chemical Reaction and Equations 2023-05-07

Chemical Reaction and Equations crossword puzzle
Across
  1. Most decomposition reactions are also called as-
  2. when ferrous sulphate is decomposed which reaction is involved in it
  3. when lead nitrate decomposes the brown fumes produced are of -
  4. _______ can be used to prevent corrosion
Down
  1. Which type of decomposition reactions are used in black and white photography
  2. ________ is formed when silver articles react with Sulphur in air
  3. oxidation of metals is known as -
  4. the process of corrosion of iron is called-
  5. What substance decomposes to form quicklime and carbon dioxide
  6. when copper corodes which coloured coating is seen

10 Clues: oxidation of metals is known as - • _______ can be used to prevent corrosion • the process of corrosion of iron is called- • Most decomposition reactions are also called as- • when copper corodes which coloured coating is seen • What substance decomposes to form quicklime and carbon dioxide • when lead nitrate decomposes the brown fumes produced are of - • ...

(Chemical Reaction) Crossword(5) 2024-05-17

(Chemical Reaction) Crossword(5) crossword puzzle
Across
  1. properties that can be observed without changing its identity
  2. properties that can be observed as it reacts with other substances
  3. when a fuel burns in oxygen and produces C02,H20 and thermal energy
  4. substances that react at the start of a reaction
  5. anything that has mass and volume
Down
  1. uses chemical formulas and symbols to describe a chemical reaction
  2. when 2 or more substances combine and form a complex substance
  3. when 1 substance breaks down into 2 or more substances
  4. number in front of the formula that tells us how many molecules are present
  5. substances formed at the end of a reaction

10 Clues: anything that has mass and volume • substances formed at the end of a reaction • substances that react at the start of a reaction • when 1 substance breaks down into 2 or more substances • properties that can be observed without changing its identity • when 2 or more substances combine and form a complex substance • ...

Reactivity Crossword 2018-06-27

Reactivity Crossword crossword puzzle
Across
  1. Higher Ph, something to react with.
  2. A type of reaction that can change the metal back to normal.
  3. Reacts with oxygen, water and acid
  4. The least reactive metal
  5. Happens after a metal is dropped into water or acid
  6. Product of a metal reacting with oxygen
  7. A subject in science
  8. The second most reactive metal
  9. Metals react with it to create hydrogen
  10. The outcome of a metal reacting with water
Down
  1. A reaction a metal can have.
  2. A type of reaction that completely changes the metal
  3. Reacts more with water than with acid
  4. The most reactive metal
  5. If a metal does not react with something, it is ……….
  6. Lower Ph, something to react with
  7. The second least reactive metal
  8. If a metal reacts with something, it is ……..
  9. The metal reacts with this when using a Bunsen burner, creates metal oxide
  10. Reactivity ……

20 Clues: Reactivity …… • A subject in science • The most reactive metal • The least reactive metal • A reaction a metal can have. • The second most reactive metal • The second least reactive metal • Lower Ph, something to react with • Reacts with oxygen, water and acid • Higher Ph, something to react with. • Reacts more with water than with acid • Product of a metal reacting with oxygen • ...

Photosynthesis Honors 2022-04-07

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

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

1100 2025-11-16

1100 crossword puzzle
Across
  1. Substance reducing enzyme activity
  2. Site other than active site for regulation
  3. Total of all chemical reactions in organism
  4. Highest energy point during reaction
  5. Atom or molecule donating electrons
  6. Neutral species with unpaired electron
  7. Short-lived species during reaction
  8. Adding acyl group to aromatic compound
  9. Molecule acted on by enzyme
  10. Region where substrate binds on enzyme
  11. Negatively charged carbon species
  12. Type of alkylation or acylation reaction
  13. Positively charged carbon species
  14. Adding alkyl group to aromatic compound
  15. Step-by-step pathway of reaction
Down
  1. Inhibitor binding elsewhere on enzyme
  2. Inhibitor competing with substrate
  3. Protein acting as biological catalyst
  4. Atom or molecule seeking electrons
  5. Building complex molecules from simpler ones
  6. Non-protein helper for enzyme activity
  7. Minimum energy required to react
  8. Tightly bound cofactor to enzyme
  9. Organic molecule assisting enzyme
  10. Breakdown of molecules to release energy

25 Clues: Molecule acted on by enzyme • Minimum energy required to react • Tightly bound cofactor to enzyme • Step-by-step pathway of reaction • Organic molecule assisting enzyme • Negatively charged carbon species • Positively charged carbon species • Substance reducing enzyme activity • Inhibitor competing with substrate • Atom or molecule seeking electrons • ...

Parts of an Atom 2024-05-10

Parts of an Atom crossword puzzle
Across
  1. Made up of two or more element that are chemically combined
  2. Electrical charge of an atom in valence shells
  3. Starting materials in chemical reaction with left arrow
  4. Made up of everything
  5. change One or more changes to a physical property
  6. Neutral charges in nucleus of an atom
  7. The difference in the amount of electrons in a atom
  8. Property Ability to change into a new substance with new substance
  9. property Can be measured without changing identity of matter
Down
  1. Ending materials with right arrow
  2. Atoms that have equal number of protons but different number of electrons
  3. reaction Chemical change to make new substance
  4. Positive charges in an atom
  5. change Two or more substances change into a completely new substance
  6. In the center of an atom

15 Clues: Made up of everything • In the center of an atom • Positive charges in an atom • Ending materials with right arrow • Neutral charges in nucleus of an atom • Electrical charge of an atom in valence shells • reaction Chemical change to make new substance • The difference in the amount of electrons in a atom • change One or more changes to a physical property • ...

Chemistry 2024-04-11

Chemistry crossword puzzle
Across
  1. molecules produced from a reaction
  2. what everything is made up of
  3. chemical reaction that absorbs heat
  4. small number next to element in molecule
  5. law that states that matter cannot be created or destroyed
Down
  1. molecules used in the reaction
  2. chemical reaction that releases heat
  3. number before molecule when balancing equation

8 Clues: what everything is made up of • molecules used in the reaction • molecules produced from a reaction • chemical reaction that absorbs heat • chemical reaction that releases heat • small number next to element in molecule • number before molecule when balancing equation • law that states that matter cannot be created or destroyed

chemistry crossword 2023-11-28

chemistry crossword crossword puzzle
Across
  1. Substance composed of atoms with the same number of protons.
  2. Reaction between an acid and a base to form water and a salt.
  3. Representation of a compound showing the actual number of atoms.
  4. Representation of the arrangement of atoms in a molecule.
  5. Definite volume but no definite shape; particles more loosely packed.
  6. Absorbs heat from the surroundings.
  7. Calculation of reactants and products in chemical reactions.
Down
  1. Measure of the average kinetic energy of particles in a substance.
  2. Horizontal row of elements in the periodic table.
  3. Minimum energy required for a reaction to occur.
  4. Bond formed by the sharing of electrons between atoms.
  5. No definite shape or volume; particles move freely.
  6. Substances formed as a result of a chemical reaction.
  7. Definite shape and volume; particles tightly packed.
  8. Substance that changes color to indicate the pH of a solution.

15 Clues: Absorbs heat from the surroundings. • Minimum energy required for a reaction to occur. • Horizontal row of elements in the periodic table. • No definite shape or volume; particles move freely. • Definite shape and volume; particles tightly packed. • Substances formed as a result of a chemical reaction. • Bond formed by the sharing of electrons between atoms. • ...

Unit 2 Vocab 2016-09-20

Unit 2 Vocab crossword puzzle
Across
  1. of conservation of mass mass can't be created nor destroyed only conserved
  2. form of matter that has a definite shape, is incompressible and only expands when heated
  3. uniform mixture that contains all forms of matter
  4. change change that alters the physical properties but not the composition
  5. starting substance in a chemical reaction
  6. mixture a mixture where substances remain distinct
  7. form of matter that conforms to it container, fills entire volume of container and is easily compressed
  8. state of matter where all molecules are dissociated and most atoms are ionized
  9. combination of different substances
Down
  1. amount of matter
  2. technique used to separate mixtures based on boiling points
  3. a pure substance
  4. property ability of a substance to combine with other substances
  5. mixture mixture with uniform composition
  6. matter that has a definite composition
  7. form of matter that flows, has constant volume and takes the form of the container
  8. substance formed during a chemical reaction
  9. anything that takes up space

18 Clues: amount of matter • a pure substance • anything that takes up space • combination of different substances • matter that has a definite composition • starting substance in a chemical reaction • mixture mixture with uniform composition • substance formed during a chemical reaction • uniform mixture that contains all forms of matter • ...

WED 2025-05-02

WED crossword puzzle
Across
  1. Slow, often invisible, movement of soil down a slope
  2. Soil that has the local bedrock as its parent material
  3. Weathering that consists of rock into smaller pieces of the same material
  4. Profile Cross section of soil layers above the parent material
  5. The carrying away of sediment
  6. Contains clay and iron oxides washed from the topsoil
  7. Any chemical reaction of water with other substances
  8. Peeling of surface layers from exposed bedrockHydrolosis Any chemical reaction of water with other substances
  9. Organic material where plants roots can grow
Down
  1. Weathering when rock's minerals are changed into a new substance
  2. The breaking down of sediment
  3. Soil that itself was moved from its original location
  4. The dropping off of sediment
  5. Any chemical reaction of water with other substances
  6. The A-horizon of soil, contains organic material
  7. An acid formed when carbon dioxide dissolves in water
  8. A movement of loose rock down the slope of a hill
  9. Rock material from which soil is formed
  10. Movement Large masses of earth materials going downhill
  11. Wedging A process where water freezing in cracks of rocks breaks it

20 Clues: The dropping off of sediment • The breaking down of sediment • The carrying away of sediment • Rock material from which soil is formed • Organic material where plants roots can grow • The A-horizon of soil, contains organic material • A movement of loose rock down the slope of a hill • Slow, often invisible, movement of soil down a slope • ...

It DOES Matter 2017-01-22

It DOES Matter crossword puzzle
Across
  1. the smallest unit of matter that retains all of the chemical properties of an element.
  2. substances consisting of atoms that all have the same number of protons - (the same atomic number).
  3. where electrons spend most of their time in sometimes-complex-shaped regions of space around the nucleus.
  4. an expression that shows the number and types of atoms joined in a compound. (CO2 = Carbon Dioxide)
  5. a table of the chemical elements arranged in order of atomic number, usually in rows.
  6. anything that occupies space and has mass. It is made up of substances called elements.
  7. when energy is absorbed from the surroundings in the form of heat.
  8. a covalent bond where electrons are shared unequally.
  9. the substances produced at the end of the reaction
  10. pair of shared electrons between two atoms.
  11. control center of a cell
Down
  1. occur when chemical bonds between atoms are formed or broken.
  2. the internal make-up of the object (molecules) stays the same, even after the change — only its form changes.
  3. a number written to the right and below of the chemical symbol. (CO2)
  4. a group of atoms held together by a covalent bond.
  5. uncharged/neutral particles
  6. when energy is released from the system into the surroundings.
  7. the area outside an atom's nucleus where electrons exist.
  8. the substances that go into a chemical reaction
  9. the force of attraction between positive and negative ions.
  10. negatively charged particles
  11. substances formed when two or more chemical elements are chemically bonded together.
  12. positively charged particles

23 Clues: control center of a cell • uncharged/neutral particles • negatively charged particles • positively charged particles • pair of shared electrons between two atoms. • the substances that go into a chemical reaction • a group of atoms held together by a covalent bond. • the substances produced at the end of the reaction • a covalent bond where electrons are shared unequally. • ...

Chapter 2 Vocab Crossword - Saige Arnold 2018-10-01

Chapter 2 Vocab Crossword - Saige Arnold crossword puzzle
Across
  1. a substance that provides an alternate route from reactants to products that doesn’t require as much energy to jump­-start
  2. the tendency of energy to disperse
  3. a substance that is present before a chemical reaction and takes part in it
  4. simple carbohydrates
  5. A change in a substance that results in one or more new substances being formed that have different physical and chemical properties than those of the original substance
  6. made of three parts: a base that has nitrogen in it, a sugar,and a phosphate group
  7. basic building block of matter
  8. the substance formed during a chemical reaction
  9. water’s polarity allows it to attract other substances besides water
  10. the immaterial stuff that gets things done
Down
  1. organic compounds made of carbons,hydrogen,and oxygen
  2. changes that don't change a matter's identity
  3. the measurement of the speed that particles move
  4. molecules that have a central carbon bonded to four groups
  5. pure substances made up of only one kind of atom
  6. a pure substance made of two or more elements chemically combined
  7. the attraction of water molecules for each other
  8. non-polar molecules
  9. stored chemical energy that holds two atoms together
  10. a naturally occurring catalyst, usually a protein

20 Clues: non-polar molecules • simple carbohydrates • basic building block of matter • the tendency of energy to disperse • the immaterial stuff that gets things done • changes that don't change a matter's identity • the substance formed during a chemical reaction • the measurement of the speed that particles move • pure substances made up of only one kind of atom • ...

Alexander Casarez Period 1 2019-06-12

Alexander Casarez Period 1 crossword puzzle
Across
  1. Determines the total number of valence electrons
  2. a negatively charged ion, i.e. one that would be attracted to the anode in electrolysis.
  3. relating to or denoting chemical bonds formed by the sharing of electrons between atoms.
  4. 1s2 2s2 2p6 3s2 3p6 4s2 3d9
  5. AB--->A+B
  6. An atom with a charge
  7. Cxy(O2)+O2(g)--->CO2(g)+H2O(l)
  8. A whole number that appears before a formula in an equation
  9. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2
  10. Contains 7 valence electrons
  11. A new substance formed in a chemical reaction
  12. A starting substance in a chemical reaction
Down
  1. 1s2 2s2 2p4
  2. A+BC--->B+AC
  3. positively charged ion, i.e. one that would be attracted to the cathode in electrolysis.
  4. An equation in which each side has the same number of atoms of each element
  5. AB+CD--->CB+AD
  6. a substance that does not exist in an ionic form in aqueous solution
  7. A+B--->AB
  8. An example of a covalent compound
  9. compound made up of two nonmetals
  10. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2
  11. A substance that conducts electricity when dissolved in water
  12. relating to, composed of, or using ions
  13. The basic unit of chemical elements

25 Clues: A+B--->AB • AB--->A+B • 1s2 2s2 2p4 • A+BC--->B+AC • AB+CD--->CB+AD • An atom with a charge • 1s2 2s2 2p6 3s2 3p6 4s2 3d9 • Contains 7 valence electrons • Cxy(O2)+O2(g)--->CO2(g)+H2O(l) • An example of a covalent compound • compound made up of two nonmetals • The basic unit of chemical elements • 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 • relating to, composed of, or using ions • ...

Chapter 2 Crossword (1) 2014-11-18

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

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

8th Grade Reading Check 2023-05-25

8th Grade Reading Check crossword puzzle
Across
  1. The caffeine in coffee and soda does not give you energy, it is a _____ against your brain.
  2. All the other variables/circumstances in a lab that are kept constant/identical.
  3. What provides energy from food molecules as they react with oxygen?
  4. The variable that is measured/observed/counted after the IV is changed.
  5. The product of chemical reactions where food molecules react with oxygen.
  6. The measurement/unit of energy for this unit.
  7. The activity that allows people to grow, heal wounds, fight disease, and think better.
  8. The "new stuff" in a chemical reaction.
Down
  1. The "old stuff" in a chemical reaction.
  2. The system that transports carbon dioxide and oxygen throughout the body.
  3. The variable that is intentionally manipulated.
  4. What cannot be created or destroyed, only converted from one type to another?
  5. The activity from Reading 1.1 that uses the most calories.
  6. The type of potential energy stored in the molecular bonds of our food.
  7. How many IV's can you have in one lab?
  8. Another name for fat.
  9. The acronym for the three atoms found in important biomolecules.
  10. Liquid fat.
  11. Made from the latin words for "foot" and "measure."
  12. In order to be alive, an organism must be made of _____.

20 Clues: Liquid fat. • Another name for fat. • How many IV's can you have in one lab? • The "old stuff" in a chemical reaction. • The "new stuff" in a chemical reaction. • The measurement/unit of energy for this unit. • The variable that is intentionally manipulated. • Made from the latin words for "foot" and "measure." • In order to be alive, an organism must be made of _____. • ...

Noah Koopman Unit 2 2025-03-24

Noah Koopman Unit 2 crossword puzzle
Across
  1. a combination of atoms that form a compound or single form
  2. a combination of the tissue in an organism
  3. a protein that speeds up chemical reactions and allows them to happen
  4. a combination of the molecules in an organism
  5. moving molecules across the membrane without using ATP energy
  6. repels water and is "water fearing"
  7. the reactant of the chemical reaction
  8. molecules move from being close together to being spaced out
  9. a combination of the organ systems forming a single structure or form
  10. the region on the enzyme that binds to the substrate
  11. when the substrate can no longer bind to the enzyme's active site
Down
  1. the energy required to perform the chemical reactions
  2. the diffusion of water across a membrane
  3. certain things are let in the cell and certain things are kept out
  4. when cells use ATP energy to move molecules across the membrane
  5. a molecule containing a hydrophilic head and hydrophobic tails; make up cell membrane
  6. the basic unit of all life
  7. is attracted to water and is "water loving"
  8. a combination of the organs in an organism
  9. the resulting features or elements produced from the chemical reaction
  10. a combination of the an organism
  11. the basic unit of all matter

22 Clues: the basic unit of all life • the basic unit of all matter • a combination of the an organism • repels water and is "water fearing" • the reactant of the chemical reaction • the diffusion of water across a membrane • a combination of the tissue in an organism • a combination of the organs in an organism • is attracted to water and is "water loving" • ...

Chemical Reactions and Equations 2025-06-23

Chemical Reactions and Equations crossword puzzle
Across
  1. A reaction involving oxygen and producing heat.
  2. Substance that undergoes change in a reaction.
  3. Type of equation with equal atoms on both sides.
  4. Reaction that absorbs heat.
  5. Reaction where a substance gains oxygen.
Down
  1. Insoluble solid formed during a reaction.
  2. Slow destruction of metal due to environment.
  3. Reaction where a substance loses oxygen.
  4. Spoilage of food by oxidation.
  5. – Substance formed in a chemical reaction.

10 Clues: Reaction that absorbs heat. • Spoilage of food by oxidation. • Reaction where a substance loses oxygen. • Reaction where a substance gains oxygen. • Insoluble solid formed during a reaction. • – Substance formed in a chemical reaction. • Slow destruction of metal due to environment. • Substance that undergoes change in a reaction. • ...

Chemical Reactions 2018-02-02

Chemical Reactions crossword puzzle
Across
  1. Number in front of a chemical formula in an equation
  2. States that during a chemical reaction, matter is not created or destroyed
  3. Type of reaction that releases energy
Down
  1. Change in matter that produces one or more new substances
  2. Type of reaction that absorbs energy
  3. Substances you end up with in a chemical equation
  4. Substances you start with in a chemical change
  5. What indicates the rato of elements in a compound

8 Clues: Type of reaction that absorbs energy • Type of reaction that releases energy • Substances you start with in a chemical change • Substances you end up with in a chemical equation • What indicates the rato of elements in a compound • Number in front of a chemical formula in an equation • Change in matter that produces one or more new substances • ...

Photosynthesis 2022-05-02

Photosynthesis crossword puzzle
Across
  1. the result after a chemical reaction
  2. the place where the photosynthesis starts and ends
  3. the process plants use to make food
  4. a sugar made during Photosynthesis
Down
  1. the cell that makes all the food
  2. the chemical that makes a plant green
  3. the things used to make the chemical reaction
  4. the gas given off during photosynthesis
  5. slug a type of slug that can use photosynthesis
  6. the cells used to transport water

10 Clues: the cell that makes all the food • the cells used to transport water • a sugar made during Photosynthesis • the process plants use to make food • the result after a chemical reaction • the chemical that makes a plant green • the gas given off during photosynthesis • the things used to make the chemical reaction • slug a type of slug that can use photosynthesis • ...

science 2021-12-03

science crossword puzzle
Across
  1. before a chemical reaction takes place
  2. of mass: can not be created or destroyed
  3. what is this unit
  4. the year of the great discovery
Down
  1. anything that has mass and takes up space
  2. Lavoisier: a great discovery
  3. all chemical equations must be this
  4. cant be created or destroyed
  5. after a chemical reaction takes place

9 Clues: what is this unit • Lavoisier: a great discovery • cant be created or destroyed • the year of the great discovery • all chemical equations must be this • after a chemical reaction takes place • before a chemical reaction takes place • of mass: can not be created or destroyed • anything that has mass and takes up space

Chemistry 2023-11-26

Chemistry crossword puzzle
Across
  1. has a definite volume and a definite shape
  2. liquid becomes a gas
  3. 2 or more different substances chemically bonded
  4. chemical reaction caused by oxidation of iron
  5. The study of chemical interactions
Down
  1. gas becomes liquid
  2. These are produced in a chemical reaction
  3. mass divided by volume Mass/Volume
  4. The building block of matter

9 Clues: gas becomes liquid • liquid becomes a gas • The building block of matter • The study of chemical interactions • mass divided by volume Mass/Volume • These are produced in a chemical reaction • has a definite volume and a definite shape • chemical reaction caused by oxidation of iron • 2 or more different substances chemically bonded

All Things Chemistry 2021-06-15

All Things Chemistry crossword puzzle
Across
  1. to hammer a substance into thin sheets
  2. elements located to the left of the periodic table
  3. element or compound that enters into a chemical reaction
  4. to pull a substance into a wire
  5. has a negative charge, found in atomic shell
  6. a chemical substance formed as a result of a chemical reaction
Down
  1. a material that does not allow electricity to move through it easily
  2. the outer electron shell of an atom
  3. 2 or more atoms combined chemically
  4. a substance made up entirely of the same kind of atoms
  5. has a positive charge, found in the nucleus of an atom
  6. 2 or more substances combined physically
  7. has no charge, found in the nucleus of an atom
  8. the horizontal row in the periodic table

14 Clues: to pull a substance into a wire • the outer electron shell of an atom • 2 or more atoms combined chemically • to hammer a substance into thin sheets • 2 or more substances combined physically • the horizontal row in the periodic table • has a negative charge, found in atomic shell • has no charge, found in the nucleus of an atom • ...

All Things Physics 2021-06-15

All Things Physics crossword puzzle
Across
  1. to hammer a substance into thin sheets
  2. elements located to the left of the periodic table
  3. element or compound that enters into a chemical reaction
  4. to pull a substance into a wire
  5. has a negative charge, found in atomic shell
  6. a chemical substance formed as a result of a chemical reaction
Down
  1. a material that does not allow electricity to move through it easily
  2. the outer electron shell of an atom
  3. 2 or more atoms combined chemically
  4. a substance made up entirely of the same kind of atoms
  5. has a positive charge, found in the nucleus of an atom
  6. 2 or more substances combined physically
  7. has no charge, found in the nucleus of an atom
  8. the horizontal row in the periodic table

14 Clues: to pull a substance into a wire • the outer electron shell of an atom • 2 or more atoms combined chemically • to hammer a substance into thin sheets • 2 or more substances combined physically • the horizontal row in the periodic table • has a negative charge, found in atomic shell • has no charge, found in the nucleus of an atom • ...

Topic1- Chemistry of life 2017-10-09

Topic1- Chemistry of life crossword puzzle
Across
  1. is a kind of chemical reaction that let polymer get water and become monomers
  2. is the name of single sugar
  3. means the substance don't like water
  4. is a molecule that consist of many same or similar basic units linked by covalent bond
  5. help stabilize cell membrane
  6. is the hydrophilic part in the cell membrane
  7. the polymer of amino acid
  8. bond is a kind of chemical bond that will be formed when to amino acid try to get together
  9. the monomer of protein
Down
  1. the polymer of glucose which store animals' energy
  2. is the big molecule that contain hundreds our thousands of molecules
  3. is made up of 1 glycerol and 3 fatty acid
  4. the polymer of glucose which support the plant
  5. means the substance like water
  6. is the basic unit molecule
  7. is a a kind of chemical reaction that make monomers lose water become polymer
  8. the monomer of cellulose
  9. group is the hydrophobic part in the cell membrane

18 Clues: the monomer of protein • the monomer of cellulose • the polymer of amino acid • is the basic unit molecule • is the name of single sugar • help stabilize cell membrane • means the substance like water • means the substance don't like water • is made up of 1 glycerol and 3 fatty acid • is the hydrophilic part in the cell membrane • the polymer of glucose which support the plant • ...

Vocabulary Review – Water, Macromolecules, Enzymes 2025-08-27

Vocabulary Review – Water, Macromolecules, Enzymes crossword puzzle
Across
  1. Build and repair body structures, enzymes, transport, and regulation.
  2. A molecule with slightly charged ends (positive & negative).
  3. Energy The amount of energy needed to start a chemical reaction.
  4. Attraction between water molecules and other substances (ex: water sticking to plant cell walls to move upward).
  5. Monomer of carbohydrates (simple sugars like glucose, fructose).
  6. Acids Store and transmit genetic information.
  7. Monomer of proteins.
  8. Attraction between water molecules (ex: water droplets sticking together).
Down
  1. Polymer of proteins (chains of amino acids folded into shape).
  2. Provide immediate energy.
  3. Polymer of carbohydrates (starch, glycogen, cellulose).
  4. All chemical reactions that occur in living organisms to maintain life. Water is essential for metabolism.
  5. Long-term energy storage and insulation (especially important for polar animals).
  6. A protein that acts as a biological catalyst.
  7. Monomer of nucleic acids (sugar + phosphate + base).
  8. Polymers of nucleic acids.
  9. When an enzyme loses its shape (due to pH, temperature, etc.) and no longer functions.
  10. A substance that speeds up a chemical reaction by lowering activation energy.

18 Clues: Monomer of proteins. • Provide immediate energy. • Polymers of nucleic acids. • A protein that acts as a biological catalyst. • Acids Store and transmit genetic information. • Monomer of nucleic acids (sugar + phosphate + base). • Polymer of carbohydrates (starch, glycogen, cellulose). • A molecule with slightly charged ends (positive & negative). • ...

Quarterly Review 2023-10-06

Quarterly Review crossword puzzle
Across
  1. is when water falls as rain, snow, or sleet
  2. is when water turns from a liquid to a gas
  3. the end result in a chemical reaction
  4. two or more atoms combined
  5. __________ reactions create a brand new substance
  6. is when water collects and flows downhill
Down
  1. the substance(s) that go into a reaction
  2. in a __________ reaction the substance stays the same but looks different
  3. the smallest unit of matter
  4. a pure substance

10 Clues: a pure substance • two or more atoms combined • the smallest unit of matter • the end result in a chemical reaction • the substance(s) that go into a reaction • is when water collects and flows downhill • is when water turns from a liquid to a gas • is when water falls as rain, snow, or sleet • __________ reactions create a brand new substance • ...

Chapter 6: The Building Blocks of Life 2017-09-26

Chapter 6: The Building Blocks of Life crossword puzzle
Across
  1. The measure of concentration of H+ in a solution
  2. substances that release hydroxide ions (OH–) when dissolved in water
  3. hydrophobic molecules made mostly of carbon and hydrogen
  4. positively charged particles
  5. a compound made of small carbon compounds called amino acids
  6. negatively charged particles that are located outside the nucleus
  7. energy the minimum amount of energy needed for reactants to form products in a chemical reaction.
  8. large molecules formed by joining smaller organic molecules together.
  9. acids complex macromolecules that store and transmit genetic information.
  10. atoms of the same element that have the same number of protons and electrons but have a different number of neutrons
  11. particles that have no charge
  12. site the specific location where a substrate binds on an enzyme
  13. compounds composed of carbon, hydrogen, and oxygen in a ratio of one oxygen and two hydrogen atoms for each carbon atom
  14. a compound in which the atoms are held
  15. a pure substance that cannot be broken down into other substances by physical or chemical means.
  16. substances that release hydrogen ions (H+) when dissolved in water
  17. the building blocks of matter
  18. molecules made from repeating units of identical or nearly identical compounds linked together by a series of covalent bonds.
  19. mixture a mixture that has a uniform composition throughout
  20. bonds electrical attraction between two oppositely charged atoms or groups of atoms
Down
  1. mixtures that can react with acids or bases to keep the pH within a particular range.
  2. the substance that is dissolved in the solvent.
  3. molecules molecules that have an unequal distribution of charges are called
  4. bond a weak interaction involving a hydrogen atom and a fluorine, oxygen, or nitrogen atom.
  5. a substance in which another substance is dissolved.
  6. reaction releases energy in the form of heat.
  7. reactants that bind to the enzyme are called
  8. acids small compounds that are made of carbon, nitrogen, oxygen, hydrogen, and sometimes sulfur.
  9. reaction the process by which atoms or groups of atoms in substances are mixed and reorganized into different substances.
  10. mixture mixture where the components remain distinct.
  11. an atom that has lost or gained one or more electrons and carries an electric charge
  12. smaller repeating subunits that make up nucleic acid composed of carbon, nitrogen, oxygen, phosphorus, and hydrogen atoms.
  13. reaction absorbs heat energy
  14. the substances formed during the reaction, on the right side of the arrow.
  15. bonds Chemical bond that forms when electrons are shared
  16. the starting substances, on the left side of the arrow.
  17. a substance that lowers the activation energy needed to start a chemical reaction.
  18. by covalent bonds.
  19. a pure substance formed when two or more different elements combine
  20. biological catalyst

40 Clues: by covalent bonds. • biological catalyst • positively charged particles • particles that have no charge • the building blocks of matter • reaction absorbs heat energy • a compound in which the atoms are held • reactants that bind to the enzyme are called • the substance that is dissolved in the solvent. • The measure of concentration of H+ in a solution • ...

KS3 Unit 3 - Chemical Substances Crossword 2025-07-17

KS3 Unit 3 - Chemical Substances Crossword crossword puzzle
Across
  1. a process or reaction that releases energy from the system to its surroundings, usually in the form of heat or light.
  2. a change which forms one or more new substances.
  3. the process of producing crystals from a solution by slowly evaporating the solvent.
  4. a substance that cannot be split up into anything simpler by chemical reactions. All the atoms in an element are the same.
  5. a substance that does not have anything else in it.
  6. two or more atoms joined together.
  7. chemicals that form new substances during a chemical reaction.
  8. a material which lets energy flow through it easily.
  9. separating things that have not dissolved from a liquid. The liquid is passed through a filter to do this.
  10. a burning reaction, when a fuel combines with oxygen and releases energy.
  11. liquids that will not stay mixed together.
  12. anything that stores energy that can be converted into heat energy, e.g. fossil fuels and nuclear fuels.
  13. a characteristic of matter that may be observed or measured without changing he chemical (e.g. flexible/rigid, hard/soft, malleable, magnetic…)
  14. the solid that has dissolved in a liquid to make a solution.
  15. a new chemical formed in a chemical reaction.
  16. the liquid that runs through filer paper.
  17. a prefix meaning ‘two’. This is something used in compound names to indicate that there are two of a particular element, e.g. carbon dioxide.
  18. the solid bits that are trapped by filter paper.
  19. when a solid has dissolved in a liquid.
  20. a metal (steel, iron, nickel or cobalt) that can be magnetised or attracted to a magnet.
Down
  1. a reaction in which new substances are made.
  2. when a liquid turns into a gas.
  3. the smallest part of an element.
  4. separating dissolved solids from one another. The solids are usually coloured.
  5. a substance containing two or more elements that are not chemically joined.
  6. physical methods to separate mixtures.
  7. substances that can be split into simpler substances.
  8. a change where no new substances are formed.
  9. something that is soluble can dissolve in a liquid.
  10. the process of separating a liquid from a solution by evaporating a liquid then condensing it.
  11. a dried piece of paper produced by chronography.
  12. something that does not dissolve is said to be insoluble.
  13. a compound formed when something reacts with oxygen.
  14. mixtures of elements, mixtures of compounds, or mixtures of elements and compounds.
  15. a solution that contains as much dissolved solid as it possibly can.
  16. a liquid used to dissolve things.
  17. reaction of a substance with oxygen to produce a compound containing oxygen (oxygen has been ‘added’ to the original substance).
  18. when a substance splits up and mixes with a liquid to make a solution.

38 Clues: when a liquid turns into a gas. • the smallest part of an element. • a liquid used to dissolve things. • two or more atoms joined together. • physical methods to separate mixtures. • when a solid has dissolved in a liquid. • the liquid that runs through filer paper. • liquids that will not stay mixed together. • a reaction in which new substances are made. • ...

Exogenic Processes 2024-09-12

Exogenic Processes crossword puzzle
Across
  1. Weathering fifteen
  2. Erosion nine
  3. one
  4. cycle four
  5. reaction two
  6. Processes twelve
  7. six
  8. thirteen
Down
  1. ten
  2. five
  3. three
  4. Weathering seven
  5. fourteen
  6. eight
  7. eleven

15 Clues: ten • one • six • five • three • eight • eleven • fourteen • thirteen • cycle four • Erosion nine • reaction two • Weathering seven • Processes twelve • Weathering fifteen

chemical reactions and equations crossword puzzle 2025-06-07

chemical reactions and equations crossword puzzle crossword puzzle
Across
  1. A substance formed in a chemical reaction.
  2. The law that states matter cannot be created or destroyed
  3. A type of reaction where a compound breaks down into simpler substances.
  4. Type of reaction where two or more reactants combine to form a single product.
Down
  1. A chemical change often accompanied by heat or light.
  2. Substance consumed in a chemical reaction
  3. The number placed in front of a chemical formula to balance an equation.

7 Clues: Substance consumed in a chemical reaction • A substance formed in a chemical reaction. • A chemical change often accompanied by heat or light. • The law that states matter cannot be created or destroyed • The number placed in front of a chemical formula to balance an equation. • A type of reaction where a compound breaks down into simpler substances. • ...

Chemistry Vocabulary 2013-04-09

Chemistry Vocabulary crossword puzzle
Across
  1. the enthalpy change that occurs to melt a solid at its melting point
  2. the measure, on any of several scales, of the average kinetic energy of the molecules in a sample of material
  3. the energy required to vaporize one mole of a liquid at a pressure of one atmosphere
  4. refers to a reaction where energy (as heat) flows into the system
  5. a plot of temperature versus time for a substance where energy is added at a constant rate
  6. refers to a reaction where energy (as heat) flows out of the system
Down
  1. a device used to measure energy changes accompnying chemical and physical changes by observing temperature alterations
  2. the change in the enthalpy of a chemical reaction that occurs at a constant pressure
  3. a property of a system equal to E + PV, where E is the internal energy of the system, P is the pressure, and V is the volume of the system
  4. the amount of energy required to elevate the temperature of one gram of a substance one degree Celsius
  5. energy due to position or composition
  6. in going from a particular set of reactants to a particular set of products, the enthalpy change is the same whether the reaction takes place in one step or in a series of steps
  7. the energy of a mass resulting from its motion
  8. the threshold energy that much be overcome to produce a chemical reaction

14 Clues: energy due to position or composition • the energy of a mass resulting from its motion • refers to a reaction where energy (as heat) flows into the system • refers to a reaction where energy (as heat) flows out of the system • the enthalpy change that occurs to melt a solid at its melting point • ...