chemical reaction Crossword Puzzles

Topic 2.6 Enzyme Quick Quiz 2025-09-23

Topic 2.6 Enzyme Quick Quiz crossword puzzle
Across
  1. Organic polymer composed of amino acids
  2. Substance that is changed by a chemical reaction
  3. Biological catalyst that helps reactions occur in organisms
  4. Substance formed by a chemical reaction
  5. Substance that increases the reaction rate of a chemical reaction
  6. Building blocks of proteins
Down
  1. The ability to maintain a stable internal environment
  2. Unused or excess material produced by organisms or systems
  3. Materials or energy that enter a system
  4. Materials or energy that exit a system

10 Clues: Building blocks of proteins • Materials or energy that exit a system • Organic polymer composed of amino acids • Materials or energy that enter a system • Substance formed by a chemical reaction • Substance that is changed by a chemical reaction • The ability to maintain a stable internal environment • Unused or excess material produced by organisms or systems • ...

f75 2025-11-22

f75 crossword puzzle
Across
  1. Slows down a reaction
  2. Substance formed in reaction
  3. Matter cannot be created or destroyed
  4. Absorbs heat
  5. Rule based on repeated experiments
  6. Releases heat
  7. Scientific test
  8. Chemical representation of a substance
  9. Element with mixed properties
  10. Testable prediction
  11. Starting material in reaction
  12. Collected information
  13. Element that lacks metallic properties
  14. Well-supported scientific explanation
Down
  1. Symbolic expression of a reaction
  2. Column in periodic table
  3. Unit for counting atoms or molecules
  4. Constant in an experiment
  5. Factor that changes in an experiment
  6. Path of electron around nucleus
  7. Speeds up a reaction
  8. Row in periodic table
  9. Using senses to gather information
  10. Scientist known for gas law constant
  11. Element that conducts electricity

25 Clues: Absorbs heat • Releases heat • Scientific test • Testable prediction • Speeds up a reaction • Slows down a reaction • Row in periodic table • Collected information • Column in periodic table • Constant in an experiment • Substance formed in reaction • Element with mixed properties • Starting material in reaction • Path of electron around nucleus • Symbolic expression of a reaction • ...

Chemical reactions 2023-12-21

Chemical reactions crossword puzzle
Across
  1. Evidence of a chemical reaction.
  2. A reactive metal near the top of the reactivity series.
  3. A list of metals from most to least reactive.
  4. A chemical reaction where a more reactive metal "steals" from a less reactive metal.
  5. A waste product of combustion.
Down
  1. This is conserved during a chemical reaction.
  2. When combustion occurs but there isn't a plentiful supply of oxygen so carbon and carbon monoxide are formed as waste products.
  3. When something new is made and it is difficult to reverse.
  4. The chemical reaction where fuels react with oxygen to release energy.
  5. A very unreactive metal that we use for jewellery.
  6. A reversible change where nothing new is made.

11 Clues: A waste product of combustion. • Evidence of a chemical reaction. • This is conserved during a chemical reaction. • A list of metals from most to least reactive. • A reversible change where nothing new is made. • A very unreactive metal that we use for jewellery. • A reactive metal near the top of the reactivity series. • ...

types of chemical reaction 2018-05-24

types of chemical reaction crossword puzzle
Across
  1. and reduction gain of oxygen and loss of oxygen
  2. controls involuntary actions
  3. thinking about activities
  4. brain main thinking part of brain
  5. mirror reflecting surface is curved outward
  6. reaction single reactant breaks down to give simpler products
Down
  1. relay signal from the fore brain
  2. reaction displaces or remove another element
  3. displacement reaction exchange of ions between the reactants
  4. throwing back of light
  5. reaction two or more substances combine to form single product
  6. line drawn perpendicular to the reflective surface of a mirror
  7. mirror reflecting surface is curved inward

13 Clues: throwing back of light • thinking about activities • controls involuntary actions • relay signal from the fore brain • brain main thinking part of brain • mirror reflecting surface is curved inward • mirror reflecting surface is curved outward • reaction displaces or remove another element • and reduction gain of oxygen and loss of oxygen • ...

Naomi Salters 2022-03-08

Naomi Salters crossword puzzle
Across
  1. chemicals that are present before a chemical reaction takes place.
  2. the amount of product that was actually produced
  3. group of atoms that are held together by covalent bonds
  4. study of ratios in chemical reactions
  5. maximum amount of product that can be produced based on the limiting reactant.
  6. the substance that will be used up first in a chemical reaction
  7. mass of one mole of a substance
Down
  1. (actual/theoretical) x100
  2. - number equal to 6.02x10^23
  3. reactant that is consumed first in a chemical reaction
  4. measurement of an amount of a substance

11 Clues: (actual/theoretical) x100 • - number equal to 6.02x10^23 • mass of one mole of a substance • study of ratios in chemical reactions • measurement of an amount of a substance • the amount of product that was actually produced • reactant that is consumed first in a chemical reaction • group of atoms that are held together by covalent bonds • ...

Amy Stanley's Crossword Puzzle 2024-05-15

Amy Stanley's Crossword Puzzle crossword puzzle
Across
  1. substance formed from a chemical reaction
  2. the transfer of energy at different temperatures
  3. the ability to move
  4. the amount of matter in an object
  5. the companion between two or more substances
  6. an action taken in response to something
  7. the amount of space occupied
  8. a pure substance that cant be broken down
  9. raw materials that react with one another and form products
Down
  1. an attraction between atoms
  2. measure of hotness or coldness
  3. sticking together
  4. change a physical change between substances
  5. a combination of substances that can be physically separated
  6. anything that takes up space and can be weighed
  7. the smallest unit of an element
  8. two or more atoms joined together
  9. change a chemical change between substances

18 Clues: sticking together • the ability to move • an attraction between atoms • the amount of space occupied • measure of hotness or coldness • the smallest unit of an element • the amount of matter in an object • two or more atoms joined together • an action taken in response to something • substance formed from a chemical reaction • a pure substance that cant be broken down • ...

Cellular Rep and Photosynthesis Overview 2022-12-21

Cellular Rep and Photosynthesis Overview crossword puzzle
Across
  1. input for photosynthesis; gas; brought in through pores in leaves from the atmosphere
  2. type of energy from the Sun; a form of kinetic energy
  3. organelle in which cellular respiration takes place
  4. low-energy by-product of photosynthesis
  5. energy is ___________ in an exergonic reaction
  6. input for photosynthesis brought in from the roots of plants
  7. process that transforms light to chemical energy
  8. plants, animals, or both? which organisms perform cellular respiration
  9. organelle in which photosynthesis takes place
  10. is the high-energy molecule produced in photosynthesis
  11. all organisms, including you, can trace their source of energy back to this
Down
  1. cellular respiration and photosynthesis rely on each other, therefore they are ___________________
  2. capacity to cause change
  3. cellular respiration is this type of reaction
  4. organ in plants in which photosynthesis takes place
  5. photosynthesis is this type of reaction
  6. type of energy found in glucose and molecules; a form of potential energy
  7. process that uses carbon dioxide and water to build glucose
  8. organisms that perform photosynthesis; not animals
  9. energy is ___________ in an endergonic reaction

20 Clues: capacity to cause change • low-energy by-product of photosynthesis • photosynthesis is this type of reaction • cellular respiration is this type of reaction • organelle in which photosynthesis takes place • energy is ___________ in an exergonic reaction • energy is ___________ in an endergonic reaction • process that transforms light to chemical energy • ...

chemical reaction 2023-01-23

chemical reaction crossword puzzle
Across
  1. of a gas
  2. in Odor.
  3. is emitted
  4. of gas
Down
  1. of an odor.
  2. is Being Produced.
  3. change

7 Clues: change • of gas • of a gas • in Odor. • is emitted • of an odor. • is Being Produced.

Chemical Reaction 2023-04-21

Chemical Reaction crossword puzzle
Across
  1. a compound or substance that has been purified or prepared, especially artificially.
  2. substance made by mixing other substances together.
  3. a particular kind of matter with uniform properties.
Down
  1. the amount of space that a substance or object occupies, or that is enclosed within a container, especially when great.
  2. makes up everything
  3. a coherent, typically large body of matter with no definite shape.

6 Clues: makes up everything • substance made by mixing other substances together. • a particular kind of matter with uniform properties. • a coherent, typically large body of matter with no definite shape. • a compound or substance that has been purified or prepared, especially artificially. • ...

Chemistry Unit 1 2023-12-20

Chemistry Unit 1 crossword puzzle
Across
  1. What is made in a chemical reaction
  2. Can be bent and shaped without breaking
  3. Sub-atomic particle with -1 charge
  4. Dangerous gas produced during incomplete combustion
  5. Centre of the atom
  6. Element symbol is Na
  7. Chemical used to test for carbon dioxide
  8. Sub-atomic particles with +1 charge
  9. Gas needed for combustion
  10. Shells surrounding the nucleus
Down
  1. Element symbol is Zn
  2. The scientific term for burning
  3. Element symbol is C
  4. Splint used to test for oxygen
  5. Sub-atomic particle with no charge
  6. Metal + Oxygen --> _______________
  7. A substance containing 2 or more elements chemically joined together
  8. Solid Carbon
  9. Found on the periodic table
  10. Makes a ringing sound when hit
  11. What you start with in a chemical reaction
  12. Can be stretched out into wires without breaking
  13. Splint used to test for hydrogen

23 Clues: Solid Carbon • Centre of the atom • Element symbol is C • Element symbol is Zn • Element symbol is Na • Gas needed for combustion • Found on the periodic table • Splint used to test for oxygen • Makes a ringing sound when hit • Shells surrounding the nucleus • The scientific term for burning • Splint used to test for hydrogen • Sub-atomic particle with no charge • ...

Corrosion Crossword 2023-03-19

Corrosion Crossword crossword puzzle
Across
  1. Type of corrosion caused by a lack of oxygen
  2. Type of corrosion caused by a buildup of salt
  3. Type of corrosion caused by a material's interaction with its environment
  4. Type of corrosion caused by a chemical reaction
  5. Process of removing rust from metal
  6. Type of corrosion caused by a difference in electrical potential
  7. Type of corrosion caused by oxygen
Down
  1. Type of corrosion caused by stress on a metal
  2. A metal's ability to resist corrosion
  3. Process of converting rust into a more stable compound
  4. Chemical used to dissolve rust
  5. Type of corrosion caused by a chemical reaction between two metals
  6. Process of applying a protective layer to metal
  7. Chemical used to prevent rust

14 Clues: Chemical used to prevent rust • Chemical used to dissolve rust • Type of corrosion caused by oxygen • Process of removing rust from metal • A metal's ability to resist corrosion • Type of corrosion caused by a lack of oxygen • Type of corrosion caused by stress on a metal • Type of corrosion caused by a buildup of salt • Type of corrosion caused by a chemical reaction • ...

Science Unit B Crossword 2017-11-11

Science Unit B Crossword crossword puzzle
Across
  1. A reaction where it loses energy.
  2. an atom that becomes electrically charged because of its loss or gain of energy.
  3. the horizontal row of elements in the Periodic Table
  4. An experiment where the products and reactants are accounted for.
  5. The principle where the mass will stay the same before and after because the reactants and products will be equal.
  6. elements in the Table that is shiny, malleable, ductile element that can conduct electricity.
  7. A Table where the elements are organized through their physical and chemical properties.
  8. Element that has both metal and non-metal properties.
  9. When a metal and non-metal combine.
  10. Dull, brittle elements that do not conduct electricity.
  11. The most stable and unreactive elements.
Down
  1. A chemical reaction where it forms a new substance and becomes exothermic.
  2. A reaction where it gains energy.
  3. The substance that helps a chemical reaction to proceed more quickly.
  4. Where the electron orbits around the nucleus atom.
  5. Elements in the Family that all have similar chemical families.
  6. Measure of the atomic mass.
  7. When two or more substances produce a new substance.
  8. the smallest part of an element that is representative of that element.
  9. When both non-metals combine.
  10. An invisibly negative charge found in an atom. One of the subatomic particles.
  11. The sum of the number of protons and neutrons in an atom.
  12. The most reactive non-metals.
  13. A type of organic catalyst found in the bodies of living things.
  14. the vertical group in the Periodic Table of Elements.

25 Clues: Measure of the atomic mass. • When both non-metals combine. • The most reactive non-metals. • A reaction where it loses energy. • A reaction where it gains energy. • When a metal and non-metal combine. • The most stable and unreactive elements. • Where the electron orbits around the nucleus atom. • When two or more substances produce a new substance. • ...

Science Unit B Crossword 2017-11-11

Science Unit B Crossword crossword puzzle
Across
  1. The most reactive non-metals.
  2. the horizontal row of elements in the Periodic Table
  3. When a metal and non-metal combine.
  4. elements in the Table that is shiny, malleable, ductile element that can conduct electricity.
  5. Where the electron orbits around the nucleus atom.
  6. Measure of the atomic mass.
  7. Element that has both metal and non-metal properties.
  8. When both non-metals combine.
  9. A Table where the elements are organized through their physical and chemical properties.
  10. Dull, brittle elements that do not conduct electricity.
  11. the smallest part of an element that is representative of that element.
  12. The sum of the number of protons and neutrons in an atom.
  13. The substance that helps a chemical reaction to proceed more quickly.
Down
  1. An experiment where the products and reactants are accounted for.
  2. The principle where the mass will stay the same before and after because the reactants and products will be equal.
  3. an atom that becomes electrically charged because of its loss or gain of energy.
  4. A reaction where it gains energy.
  5. A type of organic catalyst found in the bodies of living things.
  6. When two or more substances produce a new substance.
  7. A chemical reaction where it forms a new substance and becomes exothermic.
  8. Elements in the Family that all have similar chemical families.
  9. A reaction where it loses energy.
  10. The most stable and unreactive elements.
  11. An invisibly negative charge found in an atom. One of the subatomic particles.
  12. the vertical group in the Periodic Table of Elements.

25 Clues: Measure of the atomic mass. • The most reactive non-metals. • When both non-metals combine. • A reaction where it gains energy. • A reaction where it loses energy. • When a metal and non-metal combine. • The most stable and unreactive elements. • Where the electron orbits around the nucleus atom. • the horizontal row of elements in the Periodic Table • ...

2nd Semester Final Review 2 2015-05-17

2nd Semester Final Review 2 crossword puzzle
Across
  1. Element or compound that cannot be broken down into simpler components and maintain the properties of the original substance
  2. The starting substances in a chemical reaction.
  3. Vertical columns in the periodic table
  4. The energy required to raise the temperature of 1 gram of a substance by 1 degree
  5. ion A group of atoms with a positive or negative charge
  6. The new substances produced by a chemical reaction.
  7. A combination of symbols and subscripts that tells which elements are in a compound and their ratios.
  8. The sum of the kinetic and potential energy of the particles in an object
  9. Energy a moving object has because of its motion
  10. The transfer of energy from a higher temperature to a lower temperature
  11. A chemical reaction in which energy is released.
Down
  1. Compound that has water chemically attached to its ions.
  2. Transfer of thermal energy by collisions of particles (CONTACT)
  3. A neutral particle that forms as a result of electron sharing
  4. Elements are arranged by increasing atomic number and by changes in properties
  5. A positive or a negative number assigned to an element to show its combining ability in a compound
  6. The attraction that forms between atoms when they share electrons
  7. A chemical reaction in which energy is absorbed.
  8. Horizontal columns in the periodic table
  9. The average kinetic energy of the particles of a substance
  10. Transfer of thermal energy in a fluid from one place to another
  11. The force of attraction between opposite charges of the ions in an ionic compound
  12. Transfer of thermal energy by electromagnetic waves

23 Clues: Vertical columns in the periodic table • Horizontal columns in the periodic table • The starting substances in a chemical reaction. • A chemical reaction in which energy is absorbed. • Energy a moving object has because of its motion • A chemical reaction in which energy is released. • The new substances produced by a chemical reaction. • ...

Chemistry Crossword 2019-11-09

Chemistry Crossword crossword puzzle
Across
  1. word that means 6
  2. chemical combination of two or more elements in a specific ratio
  3. a system which occurs in a given area
  4. word that means 3
  5. Substance made up of one type of matter
  6. word that means 4
  7. non-metal+non-metal
  8. metal+non-metal
  9. releases heat energy
  10. is the most abundant in the Periodic Table of Elements
  11. word that means 2
  12. made up of two or more substances combined together
  13. columns
Down
  1. most reactive metal
  2. absorbs heat energy
  3. a system which one or more products of a chemical reaction can escape
  4. ionized gas
  5. word that means 5
  6. cloudy mixture that can be separated
  7. most reactive non-metal
  8. rows
  9. formula Compound a combination of symbols that represent a compound and the amount
  10. Gases the most stable and unreactive
  11. cloudy mixture that cannot be separated
  12. word that means 1
  13. a new substance produced in a chemical reaction between reactants

26 Clues: rows • columns • ionized gas • metal+non-metal • word that means 6 • word that means 5 • word that means 3 • word that means 4 • word that means 1 • word that means 2 • most reactive metal • absorbs heat energy • non-metal+non-metal • releases heat energy • most reactive non-metal • cloudy mixture that can be separated • a system which occurs in a given area • Gases the most stable and unreactive • ...

Bio.4.1.3 2024-02-07

Bio.4.1.3 crossword puzzle
Across
  1. relased to break down proteins into polypeptides
  2. Fats and oils
  3. speeds up chemical reactions
  4. A factor that can effect an enzyme
  5. the biological molecule that the enzyme will work on
  6. The chemical reactions done in a living organism is called
  7. How the substrate and enzyme should fit like
  8. What are enzymes
  9. The enzymes control this aspect of chemical reactions
  10. Where the enzyme acts on
  11. breaks down maltose from starch
Down
  1. in human saliva breaks down starch
  2. the energy needed to begin a reaction
  3. Speeds up chemical reactions by reducing activation
  4. The change of the enzymes active site
  5. Produces 2 products
  6. Measurement of acidity and basicness
  7. takes 2 substrates to make 1 product
  8. Table sugar
  9. An enzyme is not this
  10. the name of an enzyme normally ends in
  11. After an enzyme catalyst causes a reaction
  12. Amino Acids
  13. Blocks active sites
  14. Breaks down waste H2O2 made by cells

25 Clues: Table sugar • Amino Acids • Fats and oils • What are enzymes • Produces 2 products • Blocks active sites • An enzyme is not this • Where the enzyme acts on • speeds up chemical reactions • breaks down maltose from starch • in human saliva breaks down starch • A factor that can effect an enzyme • Measurement of acidity and basicness • takes 2 substrates to make 1 product • ...

Chemical Reactions Vocabulary 2024-09-25

Chemical Reactions Vocabulary crossword puzzle
Across
  1. the table that organizes the elements by property and mass
  2. the person who created the modern periodic table
  3. the element with the symbol 'O'
  4. a starting substance in a chemical reaction
  5. the smallest particle of an element
  6. the element with the symbol 'C'
Down
  1. what atoms do during a chemical reaction
  2. the element with the symbol 'H'
  3. a fundamental substance that can't be broken down
  4. a substance produced in a chemical reaction
  5. a substance made of two or more different atoms combined
  6. anything that has mass and takes up space

12 Clues: the element with the symbol 'H' • the element with the symbol 'O' • the element with the symbol 'C' • the smallest particle of an element • what atoms do during a chemical reaction • anything that has mass and takes up space • a substance produced in a chemical reaction • a starting substance in a chemical reaction • the person who created the modern periodic table • ...

#9 - Cellular Respiration Crossword 2023-10-18

#9 - Cellular Respiration Crossword crossword puzzle
Across
  1. energy produced by respiration
  2. process by which organisms use oxygen to bread down food molecules to get chemical energy
  3. what is produced at the end of a chemical reaction
  4. site of (most of) cellular respiration
  5. help to catalyze a chemical reaction
  6. respiration that occurs when oxygen is PRESENT
Down
  1. simple sugar needed as a reactant to perform respiration
  2. respiration that occurs when oxygen is ABSENT
  3. present at the beginning of the reaction
  4. gas waste product produced by respiration
  5. gas needed as a reactant to perform respiration
  6. liquid waste product produced by respiration

12 Clues: energy produced by respiration • help to catalyze a chemical reaction • site of (most of) cellular respiration • present at the beginning of the reaction • gas waste product produced by respiration • liquid waste product produced by respiration • respiration that occurs when oxygen is ABSENT • respiration that occurs when oxygen is PRESENT • ...

Mitchell Holmes Ch.13 Crossword 2019-03-07

Mitchell Holmes Ch.13 Crossword crossword puzzle
Across
  1. Displacement where two atoms are switched
  2. Direction to read from when balancing equations
  3. Chemical that donates a hydrogen ion
  4. Displacement where one atom is switched
  5. When reaction and it's reverse act at the same rate
Down
  1. Changes the rate of a chemical reaction
  2. Chemical that accepts a hydrogen ion
  3. Reaction where there is a net release of energy
  4. Reaction where there is a net absorption of energy
  5. Also known as activation energy

10 Clues: Also known as activation energy • Chemical that accepts a hydrogen ion • Chemical that donates a hydrogen ion • Changes the rate of a chemical reaction • Displacement where one atom is switched • Displacement where two atoms are switched • Reaction where there is a net release of energy • Direction to read from when balancing equations • ...

Gage Brunswick Unit 2 2025-03-25

Gage Brunswick Unit 2 crossword puzzle
Across
  1. a thing made up of diffrent tissue to perform a task
  2. what is formed after a chemical reaction
  3. a lipid molecule that forms the cell membrane core
  4. basic unit of chemical element
  5. a group of organs
  6. the basic membrane
  7. a group of similar cells
  8. the meterial on whitch a organism lives off
  9. were something is favored over somthing else causeing it to last longer/be used
  10. needs no energy to move
Down
  1. likes water
  2. The passive moevment of water molecules
  3. needs energy to move
  4. the minimum amount of energy needed to to start the chemical reaction
  5. performs a use in the cell
  6. dislikes water
  7. two or more atoms
  8. the natural movement of atoms to a bigger/smaller place
  9. a protien lost its natrual shape
  10. were a substrate binds
  11. a protein

21 Clues: a protein • likes water • dislikes water • two or more atoms • a group of organs • the basic membrane • needs energy to move • were a substrate binds • needs no energy to move • a group of similar cells • performs a use in the cell • basic unit of chemical element • a protien lost its natrual shape • The passive moevment of water molecules • what is formed after a chemical reaction • ...

Gabriel Eichhorn's science crossword puzzle 2024-05-23

Gabriel Eichhorn's science crossword puzzle crossword puzzle
Across
  1. a pure substance formed by different elements
  2. something that is formed during a chemical reaction
  3. the opposite of physical change
  4. two atoms joined together
  5. everything is made of what?
  6. the opposite of chemical change
  7. a pure substance that cannot be made into a more simple substance
  8. a combination of substances that can be separated
  9. the transfer of thermal energy
Down
  1. the opposite of chemical property
  2. when molecules of the same substance stick together
  3. the opposite of physical property
  4. the process that makes new substances
  5. the amount of matter in an object
  6. the forces that hold atoms together
  7. the smallest unit of measurement
  8. the amount of space that an object occupies
  9. measures the AVERAGE amount of molecule movement

18 Clues: two atoms joined together • everything is made of what? • the transfer of thermal energy • the opposite of physical change • the opposite of chemical change • the smallest unit of measurement • the opposite of chemical property • the opposite of physical property • the amount of matter in an object • the forces that hold atoms together • the process that makes new substances • ...

Amy Stanley's Crossword Puzzle 2024-05-15

Amy Stanley's Crossword Puzzle crossword puzzle
Across
  1. substance formed from a chemical reaction
  2. the transfer of energy at different temperatures
  3. the ability to move
  4. the amount of matter in an object
  5. the companion between two or more substances
  6. an action taken in response to something
  7. the amount of space occupied
  8. a pure substance that cant be broken down
  9. raw materials that react with one another and form products
Down
  1. an attraction between atoms
  2. measure of hotness or coldness
  3. sticking together
  4. change a physical change between substances
  5. a combination of substances that can be physically separated
  6. anything that takes up space and can be weighed
  7. the smallest unit of an element
  8. two or more atoms joined together
  9. change a chemical change between substances

18 Clues: sticking together • the ability to move • an attraction between atoms • the amount of space occupied • measure of hotness or coldness • the smallest unit of an element • the amount of matter in an object • two or more atoms joined together • an action taken in response to something • substance formed from a chemical reaction • a pure substance that cant be broken down • ...

Physical Science Tic-Tac-Toe 2021-04-27

Physical Science Tic-Tac-Toe crossword puzzle
Across
  1. a characteristic of an object/substance that can be observed.
  2. how easily an object/substance attracts magnetic metals
  3. the amount of matter inside an object or substance
  4. the ability to be stretched into a wire
  5. mass per volume
  6. uniform mixture of two substances
  7. how easily an object or substance conducts heat/electricity
Down
  1. reversible change in the physical appearance of an object (shape, size, color)
  2. starting substance of a reaction
  3. chemical change on metal from water and oxygen
  4. when something is modified or something happens to make it different.
  5. anything that has mass and takes up space
  6. how easily something is able to be dissolved into another substance.
  7. a substance that can increase the speed of change without changing the end result
  8. the temperature that something must reach before it can melt
  9. A chemical change resulting from wood & fire
  10. the amount of space something takes up
  11. an irreversible chemical reaction affecting a substance at the atomic level, changing it's chemical properties or composition

18 Clues: mass per volume • starting substance of a reaction • uniform mixture of two substances • the amount of space something takes up • the ability to be stretched into a wire • anything that has mass and takes up space • A chemical change resulting from wood & fire • chemical change on metal from water and oxygen • the amount of matter inside an object or substance • ...

Chemistry Crossword - Jhuan 9B 2019-11-06

Chemistry Crossword - Jhuan 9B crossword puzzle
Across
  1. a particle with a negative charge
  2. "The Father of Modern Chemistry"
  3. extremely reactive non-metals
  4. a very reactive metal, especially in air and water
  5. a particle with a positive charge
  6. compounds that consist of ions (a group of atoms that have become electrically charged)
  7. _______ ____ model, created by John Dalton
  8. a particle with a neutral charge
  9. is a chemical reaction that takes place in the cells in your body
  10. releases heat (example: fire)
  11. one of the three factors of the fire triangle
  12. reacts to air and water: less reactive than alkaline metals
  13. absorbs heat (example: ice pack)
  14. have mixed properties of both metals and non-metals
  15. a new substance produced in a chemical reaction
  16. created the raisin bun model, discovered subatomic particles called electrons
Down
  1. the horizontal rows in the periodic table of elements
  2. often a liquid or gas at room temperature (can be solids sometimes, aren't malleable, do not conduct electricity, and usually has no lustre
  3. takes place when two or more substances combine to form new ones
  4. the sum two non-metals combining, forming a pure substance called a _________.
  5. the vertical columns in the periodic table of elements
  6. a substance that reacts with another substance in a chemical reaction to create a new substance with different products or properties
  7. a very stable and unreactive gas
  8. solids at room temperature, often malleable, often has lustre, and conducts electricity
  9. is a fast chemical reaction that occurs whens oxygen reacts with a substance to form a new substance; gives off energy

25 Clues: extremely reactive non-metals • releases heat (example: fire) • "The Father of Modern Chemistry" • a very stable and unreactive gas • a particle with a neutral charge • absorbs heat (example: ice pack) • a particle with a negative charge • a particle with a positive charge • _______ ____ model, created by John Dalton • one of the three factors of the fire triangle • ...

Science 2011-12-13

Science crossword puzzle
Across
  1. The opposite of Acid.
  2. Represents the reactants and products in a chemical reaction using their symbols or formulas.
  3. A neutral compound that consists of positive and negative ions held together by a ionic bond.
  4. You start balancing the _________ when you are balancing reactions.
  5. A statement that summarizes an observed pattern in nature.
  6. Something that is lost or gained in every chemical reaction.
  7. Are substances that form in a chemical reaction.
  8. The prefix for 3.
  9. The prefix for 7.
  10. A.K.A The left side.
  11. A neutral compound composed of two or more non-metallic elements held together by covalent bonds.
  12. A.K.A The right side.
  13. A group of atoms with a charge.
Down
  1. Identifies the reactants and products in a chemical reaction using only the names of the elements and compounds.
  2. All atoms we start with must be accounted for. However they may change their ________________.
  3. Involves planning a series of data-gathering operations that will provide a basis for testing a hypothesis or answering a question.
  4. Neutral on the pH chart.
  5. The prefix for 10.
  6. A bond formed by two or more atoms sharing one or more pairs of electrons.
  7. The bond formed by the transfer of electrons from one atom to another.
  8. This happens when a base is added to an acid.
  9. How many bonds does Carbon form?
  10. A negatively charged ion, the result of gaining one or more electrons.
  11. A positively charged ion, the result of losing one or more electrons.
  12. An atom that has become charged by gaining or losing one or more electrons.

25 Clues: The prefix for 3. • The prefix for 7. • The prefix for 10. • A.K.A The left side. • The opposite of Acid. • A.K.A The right side. • Neutral on the pH chart. • A group of atoms with a charge. • How many bonds does Carbon form? • This happens when a base is added to an acid. • Are substances that form in a chemical reaction. • ...

Thermochemistry Crossword 2024-04-26

Thermochemistry Crossword crossword puzzle
Across
  1. Endothermic reactions _____ energy
  2. Heat flows from warmer to _______ object
  3. concerned with heat changes that occur during chemical reactions
  4. Essentially all chemical reactions and changes in physical state involve either:
  5. Average kinetic energy of the particles in matter
  6. The products are ______ in energy than the reactants
  7. release of heat, or absorption of heat
  8. Change in H is_______for an exothermic reaction
  9. the amount of heat needed to increase the temperature of an object exactly 1°C
  10. Change in H is ________ for an endothermic reaction
  11. a measure of the disorder of a system
  12. The products are ______ in energy than the reactants
  13. release of heat, or absorption of heat
  14. Heat flowing into a system from its surroundings
Down
  1. Exothermic reactions ____ energy
  2. Energy is neither created nor destroyed
  3. The device used to measure the absorption or release of heat in chemical or physical processes
  4. quantity of heat needed to raise the temperature of 1 g of pure water 1°C.
  5. In an endothermic reaction, the systems _____ in temperature, the surroundings ______ in temperature
  6. SI Unit of heat and energy
  7. Water's specific heat value is very _______
  8. Heat flowing out of a system into it’s surroundings
  9. the measurement of the heat into or out of a system for chemical and physical processes.
  10. The heat content of a system at constant pressure
  11. The amount of heat it takes to raise the temperature of 1 g of the substance 1°C
  12. In an exothermic reaction, the system _____ in temperature, surroundings ______ in temperature
  13. capacity for doing work or supplying heat
  14. represented by “q”, is energy that transfers from one object to another, because of a temperature difference between them.

28 Clues: SI Unit of heat and energy • Exothermic reactions ____ energy • Endothermic reactions _____ energy • a measure of the disorder of a system • Energy is neither created nor destroyed • release of heat, or absorption of heat • release of heat, or absorption of heat • Heat flows from warmer to _______ object • capacity for doing work or supplying heat • ...

Biomolecules 2022-12-06

Biomolecules crossword puzzle
Across
  1. a molecule that is essential for life
  2. splitting a polymer into monomers with the addition of water
  3. made of carbon, hydrogen, and oxygen; quick energy
  4. the process of making polymers into monomers
  5. DNA/RNA (CHONP)
  6. process of making monomers into polymers
  7. transports chemical energy
  8. a chemical reaction that makes polymers by removing water: dehydration ________
Down
  1. a type of reaction that releases energy
  2. larger units made of monomers
  3. small units that make up polymers
  4. a type of reaction that requires energy
  5. made of C, H, O, N
  6. stores long term energy

14 Clues: DNA/RNA (CHONP) • made of C, H, O, N • stores long term energy • transports chemical energy • larger units made of monomers • small units that make up polymers • a molecule that is essential for life • a type of reaction that releases energy • a type of reaction that requires energy • process of making monomers into polymers • the process of making polymers into monomers • ...

Carly Kanneman Chapter 13 2019-02-25

Carly Kanneman Chapter 13 crossword puzzle
Across
  1. Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction
  2. Description of a substance that can behave as either an acid or a base
  3. Description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration
  4. The reacting substances in a chemical reaction
Down
  1. An ionic compound commonly formed from the reaction between an acid and a base
  2. A polyatomic ion made by adding a proton to a water molecule
  3. A substance that donates hydrogen ions
  4. The process by which a reactant loses one or more electrons
  5. Description of a chemical reaction in which there is a net release of energy
  6. The new materials formed in a chemical reaction

10 Clues: 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 loses one or more electrons • A polyatomic ion made by adding a proton to a water molecule • Description of a substance that can behave as either an acid or a base • ...

HC U8 Vocab 2025-03-05

HC U8 Vocab crossword puzzle
Across
  1. A balanced equation in chemistry has the same number of atoms of each element on both the reactant and product sides of the chemical reaction, while an unbalanced equation has a different number of atoms of one or more elements on each side
  2. The square brackets around the H ‍ just mean that we are referring to its concentration.
  3. raises the base to the log's value to get the original number
  4. a logarithm, which is a mathematical function used to express a number as the power to which a base (usually 10) must be raised to obtain that number
  5. an insoluble solid that forms when two solutions react
  6. make (a liquid) thinner or weaker by adding water or another solvent to it.
  7. the process where a solute (a substance being dissolved) breaks down and mixes with a solvent to form a homogeneous mixture called a solution
Down
  1. a chemical equation that only shows the ions or molecules directly involved in a chemical reaction, excluding any "spectator ions" which are present but do not participate in the reaction itself
  2. the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons
  3. Dissociation in chemistry is a general process in which molecules separate or split into other things such as atoms, ions, or radicals, usually in a reversible manner.
  4. indicates all of the dissociated ions in a chemical reaction.
  5. cations and anions in aqueous solution combine to form an insoluble ionic solid called a precipitate.
  6. an ion that is present in a chemical reaction but does not participate in the reaction itself
  7. the usually clear liquid overlying material deposited by settling, precipitation, or centrifugation.
  8. the ability of a substance to dissolve in another substance

15 Clues: an insoluble solid that forms when two solutions react • the ability of a substance to dissolve in another substance • raises the base to the log's value to get the original number • indicates all of the dissociated ions in a chemical reaction. • make (a liquid) thinner or weaker by adding water or another solvent to it. • ...

Chapter 3 Vocab Crossword 2019-04-02

Chapter 3 Vocab Crossword crossword puzzle
Across
  1. Protein molecules that act as biological catalysts
  2. A process that uses the conditions of one component to regulate the function of the other. It is done to either increase or dampen the change in the system.
  3. The maximum rate of reaction when the enzyme is saturated with substrate
  4. The binding of a substrate or some other molecule to an enzyme causes a change in the shape of the enzyme so as to enhance or inhibit its activity
  5. To alter the structure of a protein by breaking bonds
  6. An enzyme that is attached to an inert, insoluble substance. Can provide increased resistance to changes in conditions
  7. The minimum energy required to allow a certain chemical reaction to occur
  8. Something which prevents an enzyme from working in the normal manner
  9. An enzyme inhibitor which does not prevent the enzyme from functioning properly permanently
  10. A molecule which speeds up a chemical reaction
  11. To prevent an enzyme from working in the normal manner
Down
  1. A region on an enzyme that binds to a protein or other substance during a reaction.
  2. The number of chemical conversions of the substrate molecules per second at a catalytic site for a given enzyme concentration
  3. The temperature at which any specific reaction or process is best carried out
  4. The reaction product inhibits the enzyme activity
  5. A measure of how acidic or basic something is on a scale of 1-14 with 1 being most acidic, 7 being neutral, and 14 being most basic
  6. The inhibitor binds to the enzyme's active site and prevents the substrate from binding, stops the reaction from happening
  7. The substance on which an enzyme acts
  8. The pH level at which a specific enzyme can work most effectively
  9. Operating outside of the cell
  10. What is left after the enzyme binds with the substrate
  11. Operating within the cell

22 Clues: Operating within the cell • Operating outside of the cell • The substance on which an enzyme acts • A molecule which speeds up a chemical reaction • The reaction product inhibits the enzyme activity • Protein molecules that act as biological catalysts • To alter the structure of a protein by breaking bonds • What is left after the enzyme binds with the substrate • ...

Amy Armenta 2019-10-18

Amy Armenta crossword puzzle
Across
  1. What you start with
  2. Of the same kind/alike
  3. When a reaction turns into "jelly" or a solid substance
  4. Any property that is measurable, whose value describes a state of a physical system
  5. A red-brown metal, chemical property of atomic number 29
  6. The smallest part of an element
  7. Basic structural and biological unit of all known organisms
  8. Idea or explanation that you test through study and experimentation
  9. What is started with
  10. The chemical element of atomic number 13,a light silvery-gray metal
  11. What you add
Down
  1. Information collected using specific purpose for analyzing/gather information in labs
  2. Presence and flow of electric charge
  3. Any material that reacts with an element
  4. What is made
  5. Atoms combined together
  6. mass The mass of an atom of a chemical element.
  7. Was a russian chemist and inventer of the perodic table
  8. A pure substance that is made from a single type of atom
  9. Materials mixed together, what comes out of a chemical reaction

20 Clues: What is made • What you add • What you start with • What is started with • Of the same kind/alike • Atoms combined together • The smallest part of an element • Presence and flow of electric charge • Any material that reacts with an element • mass The mass of an atom of a chemical element. • When a reaction turns into "jelly" or a solid substance • ...

Chemistry crossword 2019-11-08

Chemistry crossword crossword puzzle
Across
  1. is a reaction that can escape
  2. is solids at room temperature
  3. the number of protons and atom has
  4. is the most stable and unreactive
  5. made up of two or more substances
  6. when two or more substances react to form a new substance
  7. is a reaction occurred in one area
  8. have both metal and non metal properties
  9. 4
  10. 5
  11. a new substance produced in a chemical formula
Down
  1. is an atom that has lost one or more electrons
  2. a chemical change which absorbs heat energy
  3. a chemical change which releases heat energy
  4. a substance that reacts with another substance
  5. when a material changes state
  6. is liquids or gases at room temperature
  7. are the most reactive especially in air or water
  8. made up of one type of matter
  9. 1
  10. 3
  11. is an atom that has gained one or more electrons
  12. is the most reactive non metal
  13. 6
  14. 2

25 Clues: 1 • 3 • 6 • 2 • 4 • 5 • is a reaction that can escape • is solids at room temperature • when a material changes state • made up of one type of matter • is the most reactive non metal • is the most stable and unreactive • made up of two or more substances • the number of protons and atom has • is a reaction occurred in one area • is liquids or gases at room temperature • ...

Bio Project 1 2012-10-04

Bio Project 1 crossword puzzle
Across
  1. A substance containing two or more elements in a fixed ratio.
  2. Compounds that contain the element carbon.
  3. The bodies most important source of energy.
  4. Compounds that do not contain the element carbon.
  5. the number of protons in an element.
  6. Simplest sugar, made up of only 1 sugar.
  7. Proteins that speed up chemical reactions.
  8. A negatively charged ion.
  9. Formed by the union of one glycerol and 3 fatty acids.
  10. Substance formed from the substrate at the end of a chemical reaction with an enzyme.
Down
  1. A type of hereditary material.
  2. reserve supplies of energy or fuel for the body.
  3. A positively charged ion.
  4. The smallest particles of matter.
  5. Amount of energy required for a chemical reaction to occur.
  6. Substance that enzymes act upon.
  7. Are made up of 20 different amino acids.
  8. Deoxyribonucleic acid.
  9. Two or more atoms held together by chemical bonds.
  10. Atoms of the same element having different atomic mass numbers.
  11. Ribonucleic acid.

21 Clues: Ribonucleic acid. • Deoxyribonucleic acid. • A positively charged ion. • A negatively charged ion. • A type of hereditary material. • Substance that enzymes act upon. • The smallest particles of matter. • the number of protons in an element. • Are made up of 20 different amino acids. • Simplest sugar, made up of only 1 sugar. • Compounds that contain the element carbon. • ...

Olive Parfitt 4.1.3 2024-02-07

Olive Parfitt 4.1.3 crossword puzzle
Across
  1. blocks active sites
  2. secreates pancreatic amylase
  3. percentage of hydrogen ions in a solution
  4. where enzyme binds to the substrate
  5. when pH or temp is out of the optimal range
  6. chemical reactions done by living organisms
  7. molecule enzyme acts on
  8. breaks down starch into maltose
  9. enzymes controlling the speed of chemical reactions
  10. what enzymes activate
  11. a pH of 7
  12. the ideal temperature
Down
  1. the ideal pH level
  2. any pH above 7
  3. what enzymes generally end in
  4. building or add molecules
  5. enzyme released that is released by the cells of the stomach
  6. proteins which speed up chemical reactions
  7. breaking apart molecules
  8. after an enzyme catalyzes a reaction it makes a
  9. breaks apart the substrate into multiple products
  10. energy that begins the process
  11. the tempature of pH at which an enzyme functions best
  12. speeds up chemical reaction
  13. any pH below 7
  14. what enzymes are made out of
  15. hypothesis that helps explain enzyme functioning

27 Clues: a pH of 7 • any pH above 7 • any pH below 7 • the ideal pH level • blocks active sites • what enzymes activate • the ideal temperature • molecule enzyme acts on • breaking apart molecules • building or add molecules • speeds up chemical reaction • secreates pancreatic amylase • what enzymes are made out of • what enzymes generally end in • energy that begins the process • ...

Bio.4.1.3 2024-02-07

Bio.4.1.3 crossword puzzle
Across
  1. relased to break down proteins into polypeptides
  2. Fats and oils
  3. speeds up chemical reactions
  4. A factor that can effect an enzyme
  5. the biological molecule that the enzyme will work on
  6. The chemical reactions done in a living organism is called
  7. How the substrate and enzyme should fit like
  8. What are enzymes
  9. The enzymes control this aspect of chemical reactions
  10. Where the enzyme acts on
  11. breaks down maltose from starch
Down
  1. in human saliva breaks down starch
  2. the energy needed to begin a reaction
  3. Speeds up chemical reactions by reducing activation
  4. The change of the enzymes active site
  5. Produces 2 products
  6. Measurement of acidity and basicness
  7. takes 2 substrates to make 1 product
  8. Table sugar
  9. An enzyme is not this
  10. the name of an enzyme normally ends in
  11. After an enzyme catalyst causes a reaction
  12. Amino Acids
  13. Blocks active sites
  14. Breaks down waste H2O2 made by cells

25 Clues: Table sugar • Amino Acids • Fats and oils • What are enzymes • Produces 2 products • Blocks active sites • An enzyme is not this • Where the enzyme acts on • speeds up chemical reactions • breaks down maltose from starch • in human saliva breaks down starch • A factor that can effect an enzyme • Measurement of acidity and basicness • takes 2 substrates to make 1 product • ...

Reactions of metals with oxygen 2023-05-07

Reactions of metals with oxygen crossword puzzle
Across
  1. Material that conducts electricity and which is malleable and shiny
  2. oxide Compound formed when a metal reacts with oxygen
  3. The use of electricity to break a compound
  4. Chemical reaction in which a material gives up electrons, for example, when the material combines with oxygen
  5. Compound formed when an element reacts with oxygen
  6. Slow chemical reaction of iron with oxygen in the air, in the presence of water
  7. Rapid chemical reaction with oxygen that produces heat and light
Down
  1. Layer of air which surrounds the Earth
  2. Can burn
  3. Process of coating a metal object with a thin layer of another metal by means of electrolysis
  4. Has no smell
  5. Process where a metal is damaged or weakened by a chemical reaction

12 Clues: Can burn • Has no smell • Layer of air which surrounds the Earth • The use of electricity to break a compound • Compound formed when an element reacts with oxygen • oxide Compound formed when a metal reacts with oxygen • Rapid chemical reaction with oxygen that produces heat and light • Material that conducts electricity and which is malleable and shiny • ...

Key words 2026-03-04

Key words crossword puzzle
Across
  1. - A substance that is formed as a result of a chemical reaction.
  2. - They reduce or stop the enzyme from functioning which reduces the rate of reactions.
  3. - An organic cofactor that is required for an enzyme to function properly.
  4. fit - A flexible active site that changes shape or conforms to the substrate as they bond together.
  5. - The process of making large molecules from smaller ones.
  6. - The sum of all chemical reactions occurring in the cell.
  7. and key - An active site that has a set shape where the substrate molecule fit perfectly into the active site where the chemical reaction takes place.
Down
  1. energy - The energy required to start any reaction.
  2. - A reaction that has a net release of free energy.
  3. - A substance that is present at the start of a reaction.
  4. - The process of breaking down large molecules into smaller ones.
  5. - A reaction that absorbs free energy from the surroundings.

12 Clues: energy - The energy required to start any reaction. • - A reaction that has a net release of free energy. • - A substance that is present at the start of a reaction. • - The process of making large molecules from smaller ones. • - The sum of all chemical reactions occurring in the cell. • - A reaction that absorbs free energy from the surroundings. • ...

Key words 2026-03-04

Key words crossword puzzle
Across
  1. - A substance that is formed as a result of a chemical reaction.
  2. - They reduce or stop the enzyme from functioning which reduces the rate of reactions.
  3. - An organic cofactor that is required for an enzyme to function properly.
  4. fit - A flexible active site that changes shape or conforms to the substrate as they bond together.
  5. - The process of making large molecules from smaller ones.
  6. - The sum of all chemical reactions occurring in the cell.
  7. and key - An active site that has a set shape where the substrate molecule fit perfectly into the active site where the chemical reaction takes place.
Down
  1. energy - The energy required to start any reaction.
  2. - A reaction that has a net release of free energy.
  3. - A substance that is present at the start of a reaction.
  4. - The process of breaking down large molecules into smaller ones.
  5. - A reaction that absorbs free energy from the surroundings.

12 Clues: energy - The energy required to start any reaction. • - A reaction that has a net release of free energy. • - A substance that is present at the start of a reaction. • - The process of making large molecules from smaller ones. • - The sum of all chemical reactions occurring in the cell. • - A reaction that absorbs free energy from the surroundings. • ...

Chemical Reactions and Equations 2022-05-12

Chemical Reactions and Equations crossword puzzle
Across
  1. Two or more reactants combining to form one substance
  2. Electrolysis of water produces _____ gas at the cathode.
  3. Chemical name of lime stone
  4. Brown substance formed when ferrous sulphate is heated.
  5. Removal of oxygen
  6. Reaction in which heat is given out is known as _____ reaction.
Down
  1. A reaction in which a more reactive metal displaces a less reactive metal from its solution.
  2. Natural gas
  3. Brown colour gas evolved when lead nitrate is heated.
  4. Removal of hydrogen
  5. When two aqueous solutions are mixed, the solid that settles down is known as
  6. Chemical name for slaked lime
  7. Oxidation of fat and oil in food
  8. Reaction of a metal with the substances like moisture, air etc. around it.
  9. Calcium oxide is also known as

15 Clues: Natural gas • Removal of oxygen • Removal of hydrogen • Chemical name of lime stone • Chemical name for slaked lime • Calcium oxide is also known as • Oxidation of fat and oil in food • Two or more reactants combining to form one substance • Brown colour gas evolved when lead nitrate is heated. • Brown substance formed when ferrous sulphate is heated. • ...

Reaction types 2021-03-25

Reaction types crossword puzzle
Across
  1. / Negatively charged carbon is in sp3 state.
  2. effect / It is a temporary effect produced in presence of reagent only.
  3. / This free radical is most stable.
  4. effect / This effect is of great importance in conjugated compounds.
  5. effect / This effect involves displacement of sigma electrons.
  6. rearrangement / It is the reaction of an enolizable ester with a strong base to give a β-ketoester.
  7. / another name for no-bond resonance effect.
  8. fission / In this fission the bond breaks in such a way that each of the bonded atoms gets one electron of the shared pair.
  9. reaction / It is a type of organic reaction in which two substituents are removed from a molecule in either a one- or two-step mechanism.
  10. group / Example of group exhibiting plus R effect.
  11. carbon / This carbon has maximum plus inductive effect.
Down
  1. reaction / a chemical reaction during which one functional group in a chemical compound is replaced by another functional group.
  2. radical / Electrically neutral group having unpaired electrons
  3. / Hyperconjugation explain the stability of these hydrocarbons.
  4. fission / In this bond breaks in such a way that both the electrons remain with one of the atoms.
  5. / Species having a carbon atom bearing positive charge.
  6. / These are electron loving species.
  7. reaction / reaction common in compounds that have unsaturated C-C bond, like double (alkene) and triple (alkyne) bonds.
  8. / Number of hyperconjugating structure in ethyl carbonium ion
  9. / covalent compounds that exhibit inductive effect.

20 Clues: / These are electron loving species. • / This free radical is most stable. • / Negatively charged carbon is in sp3 state. • / another name for no-bond resonance effect. • / covalent compounds that exhibit inductive effect. • group / Example of group exhibiting plus R effect. • / Species having a carbon atom bearing positive charge. • ...

Equilibrium crossword 2022-03-29

Equilibrium crossword crossword puzzle
Across
  1. is one in which all species are present in the same phase
  2. measures the relative amounts of products and reactants present during a reaction at a particular point in time
  3. the reaction rate of the forward reaction is equal to the reaction rate of the backward reaction
  4. when the state of equilibrium in a system has components in more than one phase
  5. is the equilibrium constant for a solid substance dissolving in an aqueous solution
  6. a chemical reaction accompanied by the absorption of heat
  7. common ion effect suppresses the ionization of a weak base by adding more of an ion that is a product of this equilibrium
  8. the sum of the internal energy and the product of the pressure and volume of a thermodynamic system
  9. is a chemical or physical reaction that releases heat
Down
  1. a formula describing the statistical distribution of particles in a system among different energy levels
  2. does not allow matter to enter or leave, but does allow energy to enter or leave
  3. a process for synthesizing ammonia from gaseous nitrogen and hydrogen under high pressure and temperature in the presence of a catalyst
  4. that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change to reestablish equilibrium
  5. suppresses the ionization of a weak base by adding more of an ion that is a product of this equilibrium
  6. the value of its reaction quotient at chemical equilibrium
  7. is the minimum energy required to cause a process to occur

16 Clues: is a chemical or physical reaction that releases heat • is one in which all species are present in the same phase • a chemical reaction accompanied by the absorption of heat • the value of its reaction quotient at chemical equilibrium • is the minimum energy required to cause a process to occur • ...

Difference Between Physical and Chemical Properties 2019-11-11

Difference Between Physical and Chemical Properties crossword puzzle
Across
  1. One of the signs of chemical change.
  2. The arrow symbol in a chemical or physical change equation means a ___ is occurring.
  3. Describes an object or material that blocks visible light from passing through.
  4. A ___ change is one of the signs of chemical change.
  5. A new ___ is one of the signs of chemical change.
  6. A ___ property is an aspect of matter that can be observed or measured without changing the chemical composition of the matter.
  7. Describes an object or material that allows some visible light to pass through.
  8. A ___ change is one of the signs of chemical change.
  9. An “(g)” in a chemical or physical change equation means the matter is in its ___ phase.
  10. An “(l)” in a chemical or physical change equation means the matter is in its ___ phase.
Down
  1. A ___ property may only be observed by changing the chemical identity (chemical composition) of a substance.
  2. The solid that forms/appears when two clear liquids are combined.
  3. An “(s)” in a chemical or physical change equation means the matter is in its ___ phase.
  4. Describes an object or material that allows all visible light to pass through.
  5. Describes a chemical reaction which gives-off heat to its surroundings (“feels” warm or hot to the touch).
  6. A material created when one substance is dissolved in another. When we see this word it usually means a substance is dissolved in water.
  7. Set of physical and/or chemical characteristics unique to a substance or material that distinguishes it from other substances or materials.
  8. When a substance or material ___ in another it disappears.
  9. ___ formation is one of the signs of chemical change.
  10. Describes a chemical reaction which pulls-in heat from its surroundings (“feels” cool or cold hot to the touch).

20 Clues: One of the signs of chemical change. • A new ___ is one of the signs of chemical change. • A ___ change is one of the signs of chemical change. • A ___ change is one of the signs of chemical change. • ___ formation is one of the signs of chemical change. • When a substance or material ___ in another it disappears. • ...

Physical and Chemical Changes 2025-11-08

Physical and Chemical Changes crossword puzzle
Across
  1. A substance formed (often seen as bubbles or fizzing) without boiling, indicating a chemical change."
  2. Property A characteristic that describes how a substance reacts with other substances. (e.g., flammability, ability to rust)"
  3. Change A change that results in the formation of one or more new substances with different properties; also called a chemical reaction. (e.g., burning wood, rusting)"
  4. Groups of atoms bonded together; in a chemical change, these break apart and rearrange to form new ones."
  5. The original substance(s) at the beginning of a chemical reaction.
  6. A slow chemical change where iron reacts with oxygen and moisture to form iron oxide (a new substance).
  7. Property A characteristic of a substance that can be observed or measured without changing the substance's identity. (e.g., color, density, melting point)"
Down
  1. An unexpected change (either getting hotter or colder) during a reaction is evidence of a chemical change.
  2. Change A change that alters the form, size, or state of a substance without changing its chemical identity. (e.g., cutting paper, melting ice)"
  3. The process where one substance breaks down evenly into another, making a solution; a physical change."
  4. The ability of a substance to burn or ignite, causing fire or combustion. (A chemical property)"
  5. Change A permanent or unexpected shift in the appearance of a substance, which may indicate a chemical change."
  6. The production of a new or different smell is one clue that a chemical change has occurred.
  7. A change that can be easily undone or changed back to the original substance. (Most physical changes are this)
  8. A change that cannot be easily undone; a new substance has usually been formed. (Most chemical changes are this)
  9. of Matter The form matter takes, such as solid, liquid, or gas. A change between these is a physical change."
  10. The new substance(s) formed at the end of a chemical reaction.

17 Clues: The new substance(s) formed at the end of a chemical reaction. • The original substance(s) at the beginning of a chemical reaction. • The production of a new or different smell is one clue that a chemical change has occurred. • The ability of a substance to burn or ignite, causing fire or combustion. (A chemical property)" • ...

Physical Science Tic-Tac-Toe 2021-04-27

Physical Science Tic-Tac-Toe crossword puzzle
Across
  1. a characteristic of an object/substance that can be observed.
  2. how easily an object/substance attracts magnetic metals
  3. the amount of matter inside an object or substance
  4. the ability to be stretched into a wire
  5. mass per volume
  6. uniform mixture of two substances
  7. how easily an object or substance conducts heat/electricity
Down
  1. reversible change in the physical appearance of an object (shape, size, color)
  2. starting substance of a reaction
  3. chemical change on metal from water and oxygen
  4. when something is modified or something happens to make it different.
  5. anything that has mass and takes up space
  6. how easily something is able to be dissolved into another substance.
  7. a substance that can increase the speed of change without changing the end result
  8. the temperature that something must reach before it can melt
  9. A chemical change resulting from wood & fire
  10. the amount of space something takes up
  11. an irreversible chemical reaction affecting a substance at the atomic level, changing it's chemical properties or composition

18 Clues: mass per volume • starting substance of a reaction • uniform mixture of two substances • the amount of space something takes up • the ability to be stretched into a wire • anything that has mass and takes up space • A chemical change resulting from wood & fire • chemical change on metal from water and oxygen • the amount of matter inside an object or substance • ...

Cellular Energetics 2 2022-03-29

Cellular Energetics 2 crossword puzzle
Across
  1. The specific region of an enzyme that binds the substrate and that forms the pocket in which catalysis occurs.
  2. The portion of a biological system ´ s energy that can perform work when temperature and pressure are uniform throughout the system.
  3. In cellular metabolism, the use of energy released from an exergonic reaction to drive an endergonic reaction.
  4. The amount of energy that reactants must absorb before a chemical reaction will start
Down
  1. The reactant on which an enzyme works.
  2. A spontaneous chemical reaction in which there is a net release of free energy.
  3. A non spontaneous chemical reaction in which free energy is absorbed from the surroundings.
  4. A chemical agent that selectively increases the rate of reaction without being consumed by the reaction.
  5. An organic molecule serving as a cofactor. Most vitamins function as coenzymes in a metabolic reaction.
  6. A measure of molecular disorder, or randomness

10 Clues: The reactant on which an enzyme works. • A measure of molecular disorder, or randomness • A spontaneous chemical reaction in which there is a net release of free energy. • The amount of energy that reactants must absorb before a chemical reaction will start • A non spontaneous chemical reaction in which free energy is absorbed from the surroundings. • ...

Chemical Reactions and Equations 2022-05-12

Chemical Reactions and Equations crossword puzzle
Across
  1. Two or more reactants combining to form one substance
  2. Electrolysis of water produces _____ gas at the cathode.
  3. Chemical name of lime stone
  4. Brown substance formed when ferrous sulphate is heated.
  5. Removal of oxygen
  6. Reaction in which heat is given out is known as _____ reaction.
Down
  1. A reaction in which a more reactive metal displaces a less reactive metal from its solution.
  2. Natural gas
  3. Brown colour gas evolved when lead nitrate is heated.
  4. Removal of hydrogen
  5. When two aqueous solutions are mixed, the solid that settles down is known as
  6. Chemical name for slaked lime
  7. Oxidation of fat and oil in food
  8. Reaction of a metal with the substances like moisture, air etc. around it.
  9. Calcium oxide is also known as

15 Clues: Natural gas • Removal of oxygen • Removal of hydrogen • Chemical name of lime stone • Chemical name for slaked lime • Calcium oxide is also known as • Oxidation of fat and oil in food • Two or more reactants combining to form one substance • Brown colour gas evolved when lead nitrate is heated. • Brown substance formed when ferrous sulphate is heated. • ...

Chemical Reactions and Equations 2024-04-18

Chemical Reactions and Equations crossword puzzle
Across
  1. Produced at cathode during electrolysis of water.
  2. Oxidation of oil and fat in food.
  3. Removal of oxygen.
  4. Reaction of metals with moisture and gases presnt in the atmosphere.
  5. Chemical name for quick lime.
  6. A new substance formed during a chemical reaction.
  7. Brown substance formed when ferrous sulphate is heated.
  8. Addition of _____ is oxidation.
Down
  1. Calcium hydroxide is also known as.
  2. Reaction in which oxidation and reduction takes place simultaeously.
  3. Reaction in which heat is given out.
  4. A rection in which more reactive metal displaces less reactive one.
  5. When two solutions are mixed, the solid that settles down.
  6. Two or more substances forming one product.
  7. Chips packets are flushed with this gas to prevent rancidity.

15 Clues: Removal of oxygen. • Chemical name for quick lime. • Addition of _____ is oxidation. • Oxidation of oil and fat in food. • Calcium hydroxide is also known as. • Reaction in which heat is given out. • Two or more substances forming one product. • Produced at cathode during electrolysis of water. • A new substance formed during a chemical reaction. • ...

Key words 2026-03-04

Key words crossword puzzle
Across
  1. - A substance that is formed as a result of a chemical reaction.
  2. - They reduce or stop the enzyme from functioning which reduces the rate of reactions.
  3. - An organic cofactor that is required for an enzyme to function properly.
  4. fit - A flexible active site that changes shape or conforms to the substrate as they bond together.
  5. - The process of making large molecules from smaller ones.
  6. - The sum of all chemical reactions occurring in the cell.
  7. and key - An active site that has a set shape where the substrate molecule fit perfectly into the active site where the chemical reaction takes place.
Down
  1. energy - The energy required to start any reaction.
  2. - A reaction that has a net release of free energy.
  3. - A substance that is present at the start of a reaction.
  4. - The process of breaking down large molecules into smaller ones.
  5. - A reaction that absorbs free energy from the surroundings.

12 Clues: energy - The energy required to start any reaction. • - A reaction that has a net release of free energy. • - A substance that is present at the start of a reaction. • - The process of making large molecules from smaller ones. • - The sum of all chemical reactions occurring in the cell. • - A reaction that absorbs free energy from the surroundings. • ...

Reaction Types year 9 2024-08-28

Reaction Types year 9 crossword puzzle
Across
  1. A reaction with oxygen that releases heat or light.
  2. The time it takes for half the nuclei to decay.
  3. A method for judging the age of artefacts or fossils by analysing the amount of carbon-14 in the fossil.
  4. A reaction that absorbs energy.
  5. A reaction of an acid base forming salt and water.
  6. A very high energy electromagnetic.
  7. A small, negatively charged particle that can be ejected from a nucleus during a nucleus reaction it is identical to an alert Ron.
  8. Chemical reaction that releases energy.
  9. Series of chemical reactions that release energy from glucose.
Down
  1. The breakdown of metals due to their reaction with other chemicals.
  2. A chemical equation that has the same number of each type of atom on both sides of the arrow.
  3. A particle made up of two protons and two neurons, making it identical to the helium nucleus.

12 Clues: A reaction that absorbs energy. • A very high energy electromagnetic. • Chemical reaction that releases energy. • The time it takes for half the nuclei to decay. • A reaction of an acid base forming salt and water. • A reaction with oxygen that releases heat or light. • Series of chemical reactions that release energy from glucose. • ...

Physics and Chemistry (Megan and Nisa) 2017-05-28

Physics and Chemistry (Megan and Nisa) crossword puzzle
Across
  1. - A family of elements with similar chemical properties
  2. - an atom with negative charge
  3. - an atom with positive charge
  4. - A type of metal that reacts with other chemicals
  5. Table - Elements can be found in it
  6. - also known as H2O
  7. - Reaction that releases energy by light or heat
  8. - how many groups are there in the periodic table
  9. - a liquid used to dissolve another substance
  10. - an expression of chemical composition
Down
  1. - chemical element of atomic number 7, a colorless, odorless gas
  2. - Water and oxygen make this element
  3. - The smallest particle of an element
  4. - Reaction that releases cold
  5. dioxide - also known as Co2
  6. - materials which are considered essential to the support of biological life
  7. - a series of elements
  8. - simplest structural unit of a substance
  9. - The purest of all
  10. - also known as O2

20 Clues: - also known as O2 • - also known as H2O • - The purest of all • - a series of elements • dioxide - also known as Co2 • - Reaction that releases cold • - an atom with negative charge • - an atom with positive charge • Table - Elements can be found in it • - Water and oxygen make this element • - The smallest particle of an element • - an expression of chemical composition • ...

Unit 2 Jayna Luthman 2023-04-04

Unit 2 Jayna Luthman crossword puzzle
Across
  1. group of tissues
  2. energy used to create chemical reaction
  3. a group of molecules
  4. diffusion of water in a cell membrane
  5. basic unit of matter
  6. phospholipid tail (water fearing)
  7. group of cells
  8. allows certain molecules in and out of the cell
  9. when the active site's shape changes
  10. basic unit of life
  11. when cells use atp to move across the cell membrane
Down
  1. all the parts and functions put together form this
  2. molecules start out clustered then they disperse
  3. when molecules move around the membrane without the use of atp
  4. what leaves the active site after the chemical reaction
  5. phospholipid head (water loving)
  6. reacts with the enzyme at the active site (fits like a lock and key)
  7. a group of atoms
  8. protein that speeds up chemical reactions
  9. membrane whatpartofthecellmakesphospholipids
  10. where the enzyme binds with the substrate

21 Clues: group of cells • group of tissues • a group of atoms • basic unit of life • a group of molecules • basic unit of matter • phospholipid head (water loving) • phospholipid tail (water fearing) • when the active site's shape changes • diffusion of water in a cell membrane • energy used to create chemical reaction • protein that speeds up chemical reactions • ...

Pre-IB Chemistry Unit 5 Vocab 2024-12-06

Pre-IB Chemistry Unit 5 Vocab crossword puzzle
Across
  1. When two elements combine, it forms a ______
  2. When this type of element is not in a compound, it is paired up with the same element as itself
  3. What combines/reacts in the chemical reaction, on the left side of the equation.
  4. When an atom gains or loses an electron, it is considered a(n) ____
  5. To balance a reaction, a _____ is written in front of the chemical equation.
  6. This is a type of compound that is between two or more non-metals, has a low melting point, and shares its valence electrons.
  7. Replacement When one element switches places with another, follows the pattern A + BC —> B + AC
Down
  1. When a reactant breaks down into simpler products, follows the pattern AB —> A + B
  2. These are the small numbers that are after the element it’s combined to within a chemical equation, they can’t be changed.
  3. What comes out of the chemical reaction, on the right side of the equation
  4. When two or more elements combine together, follows the pattern A+B —> AB
  5. A chemical reaction that releases heat, carbon dioxide, and water. Usually an explosive reaction.
  6. Replacement When two reactants trade elements, follows the pattern AB + CD —> AD + CB
  7. This is a type of compound that is between a metal and a non-metal, has a high melting point, and transfers its valence electrons.

14 Clues: When two elements combine, it forms a ______ • When an atom gains or loses an electron, it is considered a(n) ____ • When two or more elements combine together, follows the pattern A+B —> AB • What comes out of the chemical reaction, on the right side of the equation • To balance a reaction, a _____ is written in front of the chemical equation. • ...

Science 10 :) 2011-12-13

Science 10 :) crossword puzzle
Across
  1. A positively charged ion, the result of losing one or more electrons.
  2. A statement that summarizes an observed pattern in nature.
  3. Something that is lost or gained in every chemical reaction.
  4. The bond formed by the transfer of electrons from one atom to another.
  5. Represents the reactants and products in a chemical reaction using their symbols or formulas.
  6. Identifies the reactants and products in a chemical reaction using only the names of the elements and compounds.
  7. The prefix for 7.
  8. The prefix for 3.
  9. This happens when a base is added to an acid.
  10. A neutral compound composed of two or more non-metallic elements held together by covalent bonds.
  11. The prefix for 10.
  12. All atoms we start with must be accounted for. However they may change their ________________.
  13. Neutral on the pH chart.
  14. A bond formed by two or more atoms sharing one or more pairs of electrons.
Down
  1. A.K.A The left side.
  2. Are substances that form in a chemical reaction.
  3. The opposite of Acid.
  4. Involves planning a series of data-gathering operations that will provide a basis for testing a hypothesis or answering a question.
  5. A negatively charged ion, the result of gaining one or more electrons.
  6. A neutral compound that consists of positive and negative ions held together by a ionic bond.
  7. An atom that has become charged by gaining or losing one or more electrons.
  8. How many bonds does Carbon form?
  9. A group of atoms with a charge.
  10. A.K.A The right side.
  11. You start balancing the _________ when you are balancing reactions.

25 Clues: The prefix for 7. • The prefix for 3. • The prefix for 10. • A.K.A The left side. • The opposite of Acid. • A.K.A The right side. • Neutral on the pH chart. • A group of atoms with a charge. • How many bonds does Carbon form? • This happens when a base is added to an acid. • Are substances that form in a chemical reaction. • ...

Science 10 :) 2011-12-13

Science 10 :) crossword puzzle
Across
  1. The prefix for 3.
  2. Are substances that form in a chemical reaction.
  3. Identifies the reactants and products in a chemical reaction using only the names of the elements and compounds.
  4. Involves planning a series of data-gathering operations that will provide a basis for testing a hypothesis or answering a question.
  5. The prefix for 7.
  6. All atoms we start with must be accounted for. However they may change their ________________.
  7. The prefix for 10.
  8. The opposite of Acid.
  9. You start balancing the _________ when you are balancing reactions.
  10. An atom that has become charged by gaining or losing one or more electrons.
  11. The bond formed by the transfer of electrons from one atom to another.
  12. Represents the reactants and products in a chemical reaction using their symbols or formulas.
  13. A statement that summarizes an observed pattern in nature.
Down
  1. A.K.A The right side.
  2. A.K.A The left side.
  3. A neutral compound that consists of positive and negative ions held together by a ionic bond.
  4. Something that is lost or gained in every chemical reaction.
  5. A neutral compound composed of two or more non-metallic elements held together by covalent bonds.
  6. A bond formed by two or more atoms sharing one or more pairs of electrons.
  7. A negatively charged ion, the result of gaining one or more electrons.
  8. This happens when a base is added to an acid.
  9. A positively charged ion, the result of losing one or more electrons.
  10. A group of atoms with a charge.
  11. How many bonds does Carbon form?
  12. Neutral on the pH chart.

25 Clues: The prefix for 3. • The prefix for 7. • The prefix for 10. • A.K.A The left side. • A.K.A The right side. • The opposite of Acid. • Neutral on the pH chart. • A group of atoms with a charge. • How many bonds does Carbon form? • This happens when a base is added to an acid. • Are substances that form in a chemical reaction. • ...

Brianna Massaro- chemisrty 2019-10-17

Brianna Massaro- chemisrty crossword puzzle
Across
  1. the mass of an atom.
  2. is a solid that emerges from a liquid.
  3. it tells us the number of atoms of each element in a compound.
  4. the basic unit of an element.
  5. likes the same kind
  6. the weight of something
  7. A physical property is any property that is measurable
  8. an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products.
  9. occurs because the gas molecules are in continuous random motion.
  10. a person engaged in chemical research or experiments.
  11. it is a substance that is made entirely from one type of atom.
Down
  1. chemical substances being held together by attraction of atoms to each other through sharing.
  2. dissolves some metals.
  3. a substance that takes part in and undergoes change during a reaction.
  4. lipped cylindrical glass container for laboratory use.
  5. goods you sell and ship to customers.
  6. is composed by two or more separate elements.
  7. With regard to atoms or atomic energy.
  8. dissolves in the solvent
  9. the person who developed a periodic table
  10. a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
  11. any metirial properties that happens during,or after a chemical reaction.
  12. a number of carbon atoms joined in a row.
  13. the number of atoms in the molecules of an element
  14. a liquid mixture in which the minor component.

25 Clues: likes the same kind • the mass of an atom. • dissolves some metals. • the weight of something • dissolves in the solvent • the basic unit of an element. • goods you sell and ship to customers. • is a solid that emerges from a liquid. • With regard to atoms or atomic energy. • the person who developed a periodic table • a number of carbon atoms joined in a row. • ...

SCIENCE REVIEW 2025-10-16

SCIENCE REVIEW crossword puzzle
Across
  1. a piece of matter
  2. what goes into a chemical reaction
  3. what comes out of a chemical reaction
  4. theory
  5. liquid to solid
Down
  1. bend without cracking
  2. dissolve in liquid
  3. elements chemically bonded together
  4. physical substance
  5. compound/substance

10 Clues: theory • liquid to solid • a piece of matter • dissolve in liquid • physical substance • compound/substance • bend without cracking • what goes into a chemical reaction • elements chemically bonded together • what comes out of a chemical reaction

Science 10 :) 2011-12-13

Science 10 :) crossword puzzle
Across
  1. The prefix for 3.
  2. A negatively charged ion, the result of gaining one or more electrons.
  3. The prefix for 10.
  4. Represents the reactants and products in a chemical reaction using their symbols or formulas.
  5. A neutral compound that consists of positive and negative ions held together by a ionic bond.
  6. This happens when a base is added to an acid.
  7. The prefix for 7.
  8. A.K.A The left side.
  9. How many bonds does Carbon form?
  10. Neutral on the pH chart.
  11. A statement that summarizes an observed pattern in nature.
  12. Identifies the reactants and products in a chemical reaction using only the names of the elements and compounds.
  13. A neutral compound composed of two or more non-metallic elements held together by covalent bonds.
  14. The bond formed by the transfer of electrons from one atom to another.
  15. A.K.A The right side.
  16. An atom that has become charged by gaining or losing one or more electrons.
Down
  1. A group of atoms with a charge.
  2. Involves planning a series of data-gathering operations that will provide a basis for testing a hypothesis or answering a question.
  3. All atoms we start with must be accounted for. However they may change their ________________.
  4. Are substances that form in a chemical reaction.
  5. A bond formed by two or more atoms sharing one or more pairs of electrons.
  6. You start balancing the _________ when you are balancing reactions.
  7. A positively charged ion, the result of losing one or more electrons.
  8. The opposite of Acid.
  9. Something that is lost or gained in every chemical reaction.

25 Clues: The prefix for 3. • The prefix for 7. • The prefix for 10. • A.K.A The left side. • The opposite of Acid. • A.K.A The right side. • Neutral on the pH chart. • A group of atoms with a charge. • How many bonds does Carbon form? • This happens when a base is added to an acid. • Are substances that form in a chemical reaction. • ...

CHEM 111 and 112 Cross Word 2014-05-11

CHEM 111 and 112 Cross Word crossword puzzle
Across
  1. A starting substance in a chemical reaction
  2. The SI unit for temperature
  3. Fills a container to the extent of its own volume regardless of its shape
  4. The movement of one fluid through another
  5. The SI unit for the amount of a substance
  6. Able to be a acid or a base
  7. The study of a mass to mole relationship in chemical chemical formulas
  8. The change of a substance from a solid to a liquid
  9. A method of determining the concentration of a unknown solution by monitoring amounts during its reaction with a solution of known concentration
  10. The sum of the internal energy plus the product of the pressure and volume
  11. A substance formed in a chemical reaction
  12. The capacity to do work
  13. A charged particle that forms when a atom loses or gains one or more electrons
Down
  1. The distance between any point on a wave and the same point on the next wave
  2. A positively charged Ion
  3. An organic compound that contains only H and C
  4. The space occupied by a sample of matter
  5. The maximum amount of solute that dissolves in a fixed quantity of liquid
  6. The SI unit for energy
  7. Fills its container regardless of shape and size because its particles are far appart
  8. The loss of electrons in a Redox reaction
  9. A uncharged subatomic particle found in the nucleus
  10. Any species that produces a OH-
  11. Measure of pressure equal to 1 mmHg
  12. A horizontal row of the periodic table

25 Clues: The SI unit for energy • The capacity to do work • A positively charged Ion • The SI unit for temperature • Able to be a acid or a base • Any species that produces a OH- • Measure of pressure equal to 1 mmHg • A horizontal row of the periodic table • The space occupied by a sample of matter • The movement of one fluid through another • The SI unit for the amount of a substance • ...

Brianna Massaro- chemistry 2019-10-17

Brianna Massaro- chemistry crossword puzzle
Across
  1. is a solid that emerges from a liquid.
  2. the mass of an atom.
  3. chemical substances being held together by attraction of atoms to each other through sharing.
  4. it tells us the number of atoms of each element in a compound.
  5. any metirial properties that happens during,or after a chemical reaction.
  6. a liquid mixture in which the minor component.
  7. With regard to atoms or atomic energy.
  8. likes the same kind
  9. lipped cylindrical glass container for laboratory use.
  10. a number of carbon atoms joined in a row.
  11. the basic unit of an element.
  12. a person engaged in chemical research or experiments.
  13. occurs because the gas molecules are in continuous random motion.
Down
  1. the person who developed a periodic table
  2. is composed by two or more separate elements.
  3. an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products.
  4. the weight of something
  5. A physical property is any property that is measurable
  6. a substance that takes part in and undergoes change during a reaction.
  7. a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
  8. it is a substance that is made entirely from one type of atom.
  9. dissolves in the solvent
  10. goods you sell and ship to customers.
  11. dissolves some metals.
  12. the number of atoms in the molecules of an element

25 Clues: likes the same kind • the mass of an atom. • dissolves some metals. • the weight of something • dissolves in the solvent • the basic unit of an element. • goods you sell and ship to customers. • is a solid that emerges from a liquid. • With regard to atoms or atomic energy. • the person who developed a periodic table • a number of carbon atoms joined in a row. • ...

Tyler Proulx 2019-06-12

Tyler Proulx crossword puzzle
Across
  1. chemical rule that reflects observation
  2. way of presenting information about chemical proportions of atoms
  3. Co
  4. NaF
  5. CaS
  6. substance that is not conductive
  7. Hg0(s)-->Hg(1)+Oz(g)
  8. H20 forms only between atoms of nonmetals
  9. positively charged ion
  10. 14 electrons
  11. A12S3
  12. single element reacts with a compound
  13. substance that takes part in and undergoes change during a reaction
  14. S50
  15. A+B-->AB
  16. group of atoms bonded together
  17. total energy of an isolated system remains constant
  18. 4 electrons
Down
  1. formed by chemical reactions species
  2. forces that hold atoms together
  3. AB+CD-->CB+AD
  4. contains 7 valence electrons
  5. 42
  6. 51
  7. representation of a chemical reaction in the form of symbols
  8. NaC1
  9. negatively charged ion
  10. (2H2(g)+0z(g)-->(02(g)+H20(1)
  11. temperature of which a given solid will melt
  12. 1s^2 2s^2 2p^3
  13. substance that conducts electricity when dissolved in water
  14. an atom or molecule with an electric charge

32 Clues: 42 • 51 • Co • NaF • CaS • S50 • NaC1 • A12S3 • A+B-->AB • 4 electrons • 14 electrons • AB+CD-->CB+AD • 1s^2 2s^2 2p^3 • Hg0(s)-->Hg(1)+Oz(g) • negatively charged ion • positively charged ion • contains 7 valence electrons • (2H2(g)+0z(g)-->(02(g)+H20(1) • group of atoms bonded together • forces that hold atoms together • substance that is not conductive • formed by chemical reactions species • ...

marie lisa 2021-02-01

marie lisa crossword puzzle
Across
  1. someone who worked on gravity and inertia
  2. used to clean or to fill the glassware
  3. the recipe to do an experiment
  4. something which can hurt.
  5. it is composed of a lot of different elements
  6. scientist who made the low of the pendulum
  7. the cellular theory was demonstrated by him
  8. glassware to measure the volume of the solution
  9. something poduced in a chemical reaction
  10. someone who discovered the atoms composition
  11. used to close the flask
Down
  1. products are created from rectants inside it
  2. experiments are done by someone to demonstrate something.
  3. new chemical species are created from it
  4. used to heat the solution in the glassware
  5. the electric battery
  6. something which reacts during a chemical reaction
  7. solution with water
  8. action to separate different elements
  9. glassware to countain a solution

20 Clues: solution with water • the electric battery • used to close the flask • something which can hurt. • the recipe to do an experiment • glassware to countain a solution • action to separate different elements • used to clean or to fill the glassware • new chemical species are created from it • something poduced in a chemical reaction • someone who worked on gravity and inertia • ...

Lillian Bigelow Unit 2 2025-03-24

Lillian Bigelow Unit 2 crossword puzzle
Across
  1. examples are nucleus, ribosome, and cell membrane
  2. hates water
  3. cell membrane only allows certain things to pass through
  4. the results of a chemical reaction
  5. cells combine to form these
  6. molecules move from high concentration to low concentration
  7. a protein that speeds up chemical reactions
  8. type of diffusion involving water
  9. moving molecules through the membrane with the help of ATP
  10. a living thing
  11. atoms combine to form these
  12. basic unit of life
Down
  1. the place on an enzyme where the substrate binds
  2. organs make up these
  3. energy required to start a chemical reaction
  4. moving molecules through the membrane without ATP
  5. reactant molecules
  6. likes water
  7. when the enzyme changes shape and is unable to function
  8. basic unit of matter
  9. cell membrane is made up of these
  10. examples are heart, brain, and lungs

22 Clues: hates water • likes water • a living thing • reactant molecules • basic unit of life • organs make up these • basic unit of matter • cells combine to form these • atoms combine to form these • cell membrane is made up of these • type of diffusion involving water • the results of a chemical reaction • examples are heart, brain, and lungs • a protein that speeds up chemical reactions • ...

Enzyme 2026-03-05

Enzyme crossword puzzle
Across
  1. A reaction that absorbs free energy from the surroundings.
  2. A substance that takes part and undergoes changes during a metabolic or chemical reaction.
  3. The sum of all the chemical reactions occuring in that cell.
  4. The energy that is required to start any reaction.
  5. The process of breaking down large molecules into smaller ones.
Down
  1. It describes the active site as flexible and changes shape or conforms to the substrate as they bond together.
  2. It describes the active site ad having a set shape.
  3. The substance, molecule, or organism formed at the end of a chemical reaction or biological process.
  4. Organic cofactors.
  5. The process of making large molecules from smaller ones.
  6. A reaction that has a net release of free energy.
  7. Molecules that reduce or stop the enzyme from functioning.

12 Clues: Organic cofactors. • A reaction that has a net release of free energy. • The energy that is required to start any reaction. • It describes the active site ad having a set shape. • The process of making large molecules from smaller ones. • A reaction that absorbs free energy from the surroundings. • Molecules that reduce or stop the enzyme from functioning. • ...

Enzyme 2026-03-04

Enzyme crossword puzzle
Across
  1. Process of making large molecules from smaller ones.
  2. The energy required to start any reaction is called
  3. A substance that takes part in and undergoes change during a metabolic or chemical reaction
  4. A cell is the sum of all the chemical reactions occurring in that cell
  5. Molecules that inhibit the activity of enzymes
Down
  1. The process of breaking down large molecules into smaller ones
  2. The substance, molecule, or organism formed at the end of a chemical reaction or biological process
  3. It describes the active site as having a set shape
  4. Reaction is one that has a net release of free energy.
  5. Organic cofactors
  6. Enzyme activity describes a flexible active site that changes shape, or conforms, to the substrate as they bond togethe
  7. Reaction is one that absorbs free energy from the surroundings

12 Clues: Organic cofactors • Molecules that inhibit the activity of enzymes • It describes the active site as having a set shape • The energy required to start any reaction is called • Process of making large molecules from smaller ones. • Reaction is one that has a net release of free energy. • The process of breaking down large molecules into smaller ones • ...

Chemical Reactions 2024-08-30

Chemical Reactions crossword puzzle
Across
  1. The name of a reaction where a complex substance is broken down into simpler parts
  2. Name of the experiment that uses hydrochloric acid and magnesium to create a big bang!
  3. Substances on the right hand side of a chemical equation
  4. Substances on the left hand side of a chemical equation
  5. Complete the reaction: Oxygen + Hydrogen -->
  6. The name of the reaction where a single element switches places with an element in a compound to form two new products
Down
  1. Complete the reaction: Calcium oxide + carbon dioxide -->
  2. Substances on the left hand side of a chemical equation
  3. A substance made up of more than once element
  4. The chemical formula for sodium hydroxide
  5. The first element on the periodic table
  6. The name of a reaction where two substances combine to form another substance
  7. A pure substance that cannot be broken down into smaller parts

13 Clues: The first element on the periodic table • The chemical formula for sodium hydroxide • Complete the reaction: Oxygen + Hydrogen --> • A substance made up of more than once element • Substances on the left hand side of a chemical equation • Substances on the left hand side of a chemical equation • Substances on the right hand side of a chemical equation • ...

Alexandra Gillen- Chapter 13 2016-10-12

Alexandra Gillen- Chapter 13 crossword puzzle
Across
  1. A chemical that donates a hydrogen ion, H+.
  2. Change the substance and rearrange atoms.
  3. AB + C -> AC + B
  4. A chemical that accepts a hydrogen ion, H+.
  5. Energy transfers from reactants TO surroundings.
  6. When reaction and its reverse act at the same rate.
  7. A substance that undergoes a chemical change.
  8. Energy is transferred to reactants FROM products.
  9. AB + oxygen -> oxides of A & B + H2O.
Down
  1. Must be added to break bonds;forming bonds releases energy.
  2. The energy stored in chemicals that can be released during a reaction.
  3. A + B -> AB
  4. AB + CD -> AD + BC
  5. AB -> A + B
  6. A substance that is the result of the chemical change.

15 Clues: A + B -> AB • AB -> A + B • AB + C -> AC + B • AB + CD -> AD + BC • AB + oxygen -> oxides of A & B + H2O. • Change the substance and rearrange atoms. • A chemical that donates a hydrogen ion, H+. • A chemical that accepts a hydrogen ion, H+. • A substance that undergoes a chemical change. • Energy transfers from reactants TO surroundings. • ...

Science 10 2011-12-13

Science 10 crossword puzzle
Across
  1. A positively charged ion, the result of losing one or more electrons.
  2. You start balancing the _________ when you are balancing reactions.
  3. All atoms we start with must be accounted for. However they may change their ________________.
  4. A.K.A The left side.
  5. An atom that has become charged by gaining or losing one or more electrons.
  6. A statement that summarizes an observed pattern in nature.
  7. The prefix for 10.
  8. The prefix for 3.
  9. Identifies the reactants and products in a chemical reaction using only the names of the elements and compounds.
  10. A neutral compound composed of two or more non-metallic elements held together by covalent bonds.
  11. A neutral compound that consists of positive and negative ions held together by a ionic bond.
  12. Something that is lost or gained in every chemical reaction.
  13. This happens when a base is added to an acid.
Down
  1. A bond formed by two or more atoms sharing one or more pairs of electrons.
  2. The prefix for 7.
  3. A.K.A The right side.
  4. A group of atoms with a charge.
  5. Represents the reactants and products in a chemical reaction using their symbols or formulas.
  6. Are substances that form in a chemical reaction.
  7. Neutral on the pH chart.
  8. Involves planning a series of data-gathering operations that will provide a basis for testing a hypothesis or answering a question.
  9. How many bonds does Carbon form?
  10. The bond formed by the transfer of electrons from one atom to another.
  11. A negatively charged ion, the result of gaining one or more electrons.
  12. The opposite of Acid.

25 Clues: The prefix for 7. • The prefix for 3. • The prefix for 10. • A.K.A The left side. • A.K.A The right side. • The opposite of Acid. • Neutral on the pH chart. • A group of atoms with a charge. • How many bonds does Carbon form? • This happens when a base is added to an acid. • Are substances that form in a chemical reaction. • ...

Smth 2024-02-15

Smth crossword puzzle
Across
  1. process in which one or more substances, the reactants, are converted to one or more different substances
  2. the energy of chemical substances that is released when the substances undergo a chemical
  3. proteins that help speed up metabolism, or the chemical reactions in our bodies.
  4. a substance that is formed as the result of a chemical reaction
  5. a process in which substances are changed into others
  6. colourless, odourless gas that is stored in candles
  7. the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body
  8. the invisible gaseous substance surrounding the earth, a mixture mainly of oxygen
  9. light from the sun
Down
  1. the surface or material on or from which an organism lives, grows, or obtains its nourishment.
  2. the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
  3. the process of providing the energy that is required to initiate a combustion process
  4. a usually reversible change in the physical properties of a substance,
  5. This gas is combined with (see last question) to create a combustible reaction
  6. is a substance that takes part in and undergoes change during a reaction.
  7. this is a product in human cellular respiration
  8. a change of materials into another, new materials with different properties and one or more than one new substances are formed
  9. is a reaction of a substance with oxygen to give heat and light
  10. a living organism of the kind exemplified by trees
  11. an individual animal, plant, or single-celled life form.

20 Clues: light from the sun • this is a product in human cellular respiration • a living organism of the kind exemplified by trees • colourless, odourless gas that is stored in candles • a process in which substances are changed into others • an individual animal, plant, or single-celled life form. • a substance that is formed as the result of a chemical reaction • ...

Chemical reaction & Physical reaction 2013-04-24

Chemical reaction & Physical reaction crossword puzzle
Across
  1. Two atom bond together
  2. the smallest particals
  3. From solid to Liquid
Down
  1. From gas to Liquid
  2. soft metal
  3. Two Element or more bonds together
  4. one of the magnetic metal

7 Clues: soft metal • From gas to Liquid • From solid to Liquid • Two atom bond together • the smallest particals • one of the magnetic metal • Two Element or more bonds together

Chemical Reaction 2023-10-17

Chemical Reaction crossword puzzle
Across
  1. Change No new substance is made
  2. Substance/molecule that participates in a chemical reaction
  3. Equation Uses chemical formulas, numbers, symbols and arrows to show what happens during a chemical reaction
  4. Substance/molecule formed by a chemical reaction
  5. Reaction When two or more substances combine
Down
  1. A solid formed by a change in a solution
  2. Change A new substance is made
  3. of Conservation of Mass We can't create or destroy

8 Clues: Change A new substance is made • Change No new substance is made • A solid formed by a change in a solution • Substance/molecule formed by a chemical reaction • Reaction When two or more substances combine • of Conservation of Mass We can't create or destroy • Substance/molecule that participates in a chemical reaction • ...

Chemistry Crossword 2015-11-13

Chemistry Crossword crossword puzzle
Across
  1. shiny, malleable, ductile element that conducts electricity
  2. chemical reaction that releases energy
  3. atom that has become electrically charged because it has lost or gained electrons
  4. the smallest part of an element that is representative of that element
  5. change of state from a gas to a liquid
  6. group of atoms joined by covalent bonds
  7. compound that dissolves in water to form a solution with a pH lower than 7
  8. element that has both metallic and non-metallic properties
  9. chemical combination of two or more elements in a specific ratio
  10. ability to do work
  11. invisible negatively charged particle that orbits the nucleus of an atom
  12. combination of pure substances
Down
  1. anything that has mass or occupies space
  2. description of a substance that can be pounded or rolled into sheets
  3. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  4. substance that strongly resists the flow of electricity
  5. chemical reaction that absorbs energy
  6. ability of a substance to conduct electricity or heat
  7. pure substance that cannot be broken down into other substances
  8. atomic mass unit
  9. a material that electric charge can move through easily
  10. catalyst involved in chemical reactions in living things
  11. conductor through which electric current enters or leaves a device or material
  12. amount of mass in a given volume of a substance
  13. change of state from a solid to a liquid

25 Clues: atomic mass unit • ability to do work • combination of pure substances • chemical reaction that absorbs energy • chemical reaction that releases energy • change of state from a gas to a liquid • group of atoms joined by covalent bonds • anything that has mass or occupies space • change of state from a solid to a liquid • amount of mass in a given volume of a substance • ...

Science Mid-Term Exam 2023 2023-12-04

Science Mid-Term Exam 2023 crossword puzzle
Across
  1. A pure substance made of only one kind of atom
  2. mixture a mixture in which the composition is not uniform throughout
  3. energy energy of motion
  4. energy energy carried by sound waves
  5. reaction the process by which one or more substances change to produce one or more different substances
  6. Energy Potential energy that depends on the height of an object
  7. variable The experimental factor that is manipulated; the variable whose effect is being studied. Changed on purpose.
  8. energy A form of potential energy that is stored in chemical bonds between atoms.
  9. variable that stays the same during an experiment
  10. energy The total energy of motion in the particles of a substance
Down
  1. measured using the 5 senses
  2. A substance produced in a chemical reaction
  3. transformation A change from one form of energy to another
  4. energy stored energy
  5. transfer Movement of energy from one place or object to another
  6. A chemical substance that is present at the start of a chemical reaction
  7. A substance made up of atoms of two or more different elements joined by chemical bonds
  8. mixture a mixture in which the composition is uniform throughout
  9. group In an experiment, the group that is not exposed to the treatment; contrasts with the experimental group and serves as a comparison for evaluating the effect of the treatment.
  10. Energy the potential energy of an object that is stretched or compressed
  11. observation made using numbers and measurements.
  12. variable The factor that changes as a result of an experiment.
  13. unique characteristic used to identify a pure substance.
  14. energy Energy caused by the movement of electrons.

24 Clues: energy stored energy • energy energy of motion • measured using the 5 senses • energy energy carried by sound waves • A substance produced in a chemical reaction • A pure substance made of only one kind of atom • observation made using numbers and measurements. • variable that stays the same during an experiment • energy Energy caused by the movement of electrons. • ...

Science 2025-03-10

Science crossword puzzle
Across
  1. No definite shape or volume, expands to fill space
  2. The ability to float in a fluid
  3. A state of matter found in stars and lightning
  4. Gas turning into liquid
  5. A slow chemical reaction between metal and oxygen
  6. The increase in size of a material when heated
  7. Materials that resist the flow of heat or electricity
  8. The decrease in volume due to applied pressure
  9. The attraction between different substances
  10. A chemical reaction that dulls the surface of some metals
  11. Solid turning into liquid
  12. A state of matter at extremely low temperatures
  13. Materials that allow heat or electricity to pass through
  14. Solid turning directly into gas
Down
  1. A change that creates a new substance
  2. Gas turning directly into solid
  3. Process where a liquid turns into gas
  4. Takes the shape of its container but has a fixed volume
  5. Liquid turning into solid
  6. A material’s resistance to being scratched
  7. The gradual destruction of materials due to chemical reactions
  8. The amount of space an object takes up
  9. The attraction between molecules of the same substance
  10. Has a definite shape and volume
  11. A solid that forms from a chemical reaction in a solution
  12. The substance that dissolves another in a solution
  13. A change that does not alter the chemical composition
  14. The substance being dissolved in a solution
  15. Mass per unit volume
  16. The amount of matter in an object

30 Clues: Mass per unit volume • Gas turning into liquid • Liquid turning into solid • Solid turning into liquid • Gas turning directly into solid • The ability to float in a fluid • Has a definite shape and volume • Solid turning directly into gas • The amount of matter in an object • A change that creates a new substance • Process where a liquid turns into gas • ...

biomolicules 2024-05-07

biomolicules crossword puzzle
Across
  1. Made up of chemical building blocks called amino acids
  2. Deoxyribose is the five-carbon sugar molecule.
  3. A chemical that can speed up a reaction.
  4. A nucleic acid is a chain of nucleotides which stores genetic information in biological systems.
  5. A element that is a non-metal. It is black, brittle, a poor conductor, and dull.
  6. A monomer is a small molecule that reacts with a similar molecule.
  7. A class of organic compounds mainly made of carbon, oxygen, and hydrogen atoms.
  8. The amount of energy needed to convert all the molecules in one mole of a reacting substance from a ground state to the transition state intermediate.
  9. A lipid is a fatty, oily, or wax-like compound.
  10. The active site of an enzyme is the region that binds substrate molecules.
  11. Proteins that help speed up metabolism, or the chemical reactions in our bodies.
  12. The chemical breakdown of a compound due to a reaction with water.
Down
  1. Adenine, guanine, cytosine, and thymine.
  2. End substances after a biological process has occurred.
  3. The surface or material on or from which an organism lives grows, or obtains its nourishment.
  4. They are the building blocks of polypeptides and proteins.
  5. An electrically neutral molecule where a group of atoms are at a free state.
  6. A substance that changes in a chemical reaction.
  7. A compound made up of several repeating units.
  8. The building blocks of the fat in our bodies and in our food.

20 Clues: Adenine, guanine, cytosine, and thymine. • A chemical that can speed up a reaction. • Deoxyribose is the five-carbon sugar molecule. • A compound made up of several repeating units. • A lipid is a fatty, oily, or wax-like compound. • A substance that changes in a chemical reaction. • Made up of chemical building blocks called amino acids • ...

8.P.1.3 Vocabulary 2021-04-20

8.P.1.3 Vocabulary crossword puzzle
Across
  1. a characteristic that can be observed (intensive), such as texture, color, odor, melting point, boiling point, density, or measured (extensive) such as mass, length, volume, that is used to describe matter and can be observed or measured without changing its composition
  2. the property or power of conducting heat, electricity, or sound
  3. a chemical reaction; a process that changes substances into new substances
  4. the ability of a chemical to burn or ignite, causing fire or combustion
  5. the temperature at which a solid turns into a liquid
  6. a chemical reaction in which oxygen combines with another substance; for example, when metal rusts
  7. an object's mass divided by its volume; a measure of how many particles are packed together into a certain amount of space
  8. solid particles that have been separated from a solution
Down
  1. the amount of a substance (solute) that will dissolve in another substance (solvent) at a certain volume and temperature
  2. a characteristic of a substance that is measurable or observable during a chemical reaction; includes pH, heat of combustion, reactivity
  3. the ability of a material to be beaten into a thin sheet or to be shaped without breaking
  4. wearing away due to chemical reactions, mainly oxidation. It occurs whenever a gas or liquid chemically attacks an exposed surface, often a metal, and is accelerated by warm temperatures and by acids and salts
  5. a change in matter that does not affect its chemical composition
  6. the temperature at which a liquid changes into a gas
  7. the relative capacity of an atom, molecule, or radical to undergo a chemical reaction with another atom, molecule, or compound
  8. the ability of a material to be stretched into a wire without breaking

16 Clues: the temperature at which a liquid changes into a gas • the temperature at which a solid turns into a liquid • solid particles that have been separated from a solution • the property or power of conducting heat, electricity, or sound • a change in matter that does not affect its chemical composition • ...

Science 2013-09-19

Science crossword puzzle
Across
  1. a scale used to measure the concentration of H+ ions in a solution
  2. a solution made of a base/alkali and water
  3. A biological catalyst
  4. rain that has acid in it
  5. a base dissolved in water
  6. a substance that is used to stop heart burn
  7. the term commonly used for sodium chloride
  8. Where photosynthesis occurs
  9. OH-, formed by bases
  10. CO3
Down
  1. A green pigment found in plants
  2. A chemical reaction in which glucose is broken down,releasing energy for use by the plant or animal
  3. the waxy waterproof coating of a leaf
  4. A simple sugar formed by photosynthesis
  5. a common indicator that turns red in the presence of an acid and blue in the presence of a base
  6. a chemical reaction between a acid and a base
  7. Single-celled organism that lives in water
  8. H+, released by acids
  9. A process in which chemicals move,caused by different chemical concentrations
  10. a chemical that changes colour to show whether a substance is acidic,neutral or basic

20 Clues: CO3 • OH-, formed by bases • A biological catalyst • H+, released by acids • rain that has acid in it • a base dissolved in water • Where photosynthesis occurs • A green pigment found in plants • the waxy waterproof coating of a leaf • A simple sugar formed by photosynthesis • a solution made of a base/alkali and water • Single-celled organism that lives in water • ...

Unit 7 Vocabulary 2021-02-08

Unit 7 Vocabulary crossword puzzle
Across
  1. Change - a change in matter that does not involve a change in chemical makeup.
  2. Reaction - a chemical reaction where energy is given off in the form of heat or light.
  3. - a substance that undergoes a chemical change.
  4. - a substance that results form a chemical change.
Down
  1. - a solid that is formed by combining two liquids that undergo a chemical reaction.
  2. Reaction - a chemical reaction where energy is absorbed and temperature usually decreases.
  3. of Conservation of Mass - the rule that states that matter cannot be created or destroyed during chemical reactions.
  4. Reaction - a process in which one or more substances change to form one or more new substances with different chemical makeups.

8 Clues: - a substance that undergoes a chemical change. • - a substance that results form a chemical change. • Change - a change in matter that does not involve a change in chemical makeup. • - a solid that is formed by combining two liquids that undergo a chemical reaction. • Reaction - a chemical reaction where energy is given off in the form of heat or light. • ...

energy changes 2021-11-09

energy changes crossword puzzle
Across
  1. These types of reactions are used in chemical cool packs used in sports
  2. The decomposition of ammonium chloride is an example fo this type of reaction
  3. An example of an everyday endothermic reaction
  4. This means 'without water'
  5. An exanple of a reversible reaction showing a colour change from blue to white involves this compound
  6. An exothermic reaction gives .... heat
  7. In chemical reactions this cannot be created or destroyed
Down
  1. This would be present in an equation of a reversible reaction
  2. An endothermic reaction takes ... heat
  3. An example of an everyday exothermic reaction
  4. These types of reactions are used in hand warmers

11 Clues: This means 'without water' • An endothermic reaction takes ... heat • An exothermic reaction gives .... heat • An example of an everyday exothermic reaction • An example of an everyday endothermic reaction • These types of reactions are used in hand warmers • In chemical reactions this cannot be created or destroyed • ...

Year 8 Science Unit 8 2025-09-24

Year 8 Science Unit 8 crossword puzzle
Across
  1. appearance of metal oxide
  2. rust may cause buildings to ___
  3. gas state of water
  4. chemical name for rust
  5. how reactive metals are
  6. a reaction that absorbs thermal energy from the surrounding
Down
  1. a requirement in burning
  2. the gas that produces a squeaky pop sound when burned with lighted splint
  3. a metal very reactive with water
  4. found in self-heating cans
  5. a chemical reaction where a substance combines with oxygen
  6. an example of endothermic process
  7. requirement for rusting to happen
  8. product of reaction between metal and acid

14 Clues: gas state of water • chemical name for rust • how reactive metals are • a requirement in burning • appearance of metal oxide • found in self-heating cans • rust may cause buildings to ___ • a metal very reactive with water • an example of endothermic process • requirement for rusting to happen • product of reaction between metal and acid • ...

. 2026-02-10

. crossword puzzle
Across
  1. The three elements needed to start a fire: fuel, oxygen, and ____.
  2. The number placed before a formula in a balanced equationEndothermic
  3. A substance that increases the rate of a reaction without being consumed.
  4. The black, powdery carbon residue left from incomplete burning.
  5. A material (like coal, gas, or oil) that is burned to produce heat or power.
  6. The new substance(s) formed from a chemical reaction.
Down
  1. A type of reaction where a compound breaks down into two or more simpler substances.
  2. A solid that forms from a solution during a chemical reaction.
  3. A reaction where two substances interact to form one new compoundRusting
  4. he substance that takes part in and undergoes change during a reaction.
  5. he type of reaction that releases energy, characteristic of combustion.
  6. A reaction occurring when there is a limited supply of oxygen.
  7. A compound containing only carbon and hydrogen, often used as fuel.

13 Clues: The new substance(s) formed from a chemical reaction. • A solid that forms from a solution during a chemical reaction. • A reaction occurring when there is a limited supply of oxygen. • The black, powdery carbon residue left from incomplete burning. • The three elements needed to start a fire: fuel, oxygen, and ____. • ...

Biomolecules 2022-12-06

Biomolecules crossword puzzle
Across
  1. a molecule that is essential for life
  2. splitting a polymer into monomers with the addition of water
  3. made of carbon, hydrogen, and oxygen; quick energy
  4. the process of making polymers into monomers
  5. DNA/RNA (CHONP)
  6. process of making monomers into polymers
  7. transports chemical energy
  8. a chemical reaction that makes polymers by removing water: dehydration ________
Down
  1. a type of reaction that releases energy
  2. larger units made of monomers
  3. small units that make up polymers
  4. a type of reaction that requires energy
  5. made of C, H, O, N
  6. stores long term energy

14 Clues: DNA/RNA (CHONP) • made of C, H, O, N • stores long term energy • transports chemical energy • larger units made of monomers • small units that make up polymers • a molecule that is essential for life • a type of reaction that releases energy • a type of reaction that requires energy • process of making monomers into polymers • the process of making polymers into monomers • ...

Chapter 3 Vocab Crossword 2019-04-02

Chapter 3 Vocab Crossword crossword puzzle
Across
  1. A measure of how acidic or basic something is on a scale of 1-14 with 1 being most acidic, 7 being neutral, and 14 being most basic
  2. An enzyme that is attached to an inert, insoluble substance. Can provide increased resistance to changes in conditions
  3. The reaction product inhibits the enzyme activity
  4. The inhibitor binds to the enzyme's active site and prevents the substrate from binding, stops the reaction from happening
  5. The minimum energy required to allow a certain chemical reaction to occur
  6. A molecule which speeds up a chemical reaction
  7. Protein molecules that act as biological catalysts
  8. To alter the structure of a protein by breaking bonds
  9. Operating outside of the cell
  10. An enzyme inhibitor which does not prevent the enzyme from functioning properly permanently
Down
  1. What is left after the enzyme binds with the substrate
  2. A process that uses the conditions of one component to regulate the function of the other. It is done to either increase or dampen the change in the system.
  3. The temperature at which any specific reaction or process is best carried out
  4. To prevent an enzyme from working in the normal manner
  5. The binding of a substrate or some other molecule to an enzyme causes a change in the shape of the enzyme so as to enhance or inhibit its activity
  6. The substance on which an enzyme acts
  7. Something which prevents an enzyme from working in the normal manner
  8. A region on an enzyme that binds to a protein or other substance during a reaction.
  9. Operating within the cell
  10. The maximum rate of reaction when the enzyme is saturated with substrate
  11. The number of chemical conversions of the substrate molecules per second at a catalytic site for a given enzyme concentration
  12. The pH level at which a specific enzyme can work most effectively

22 Clues: Operating within the cell • Operating outside of the cell • The substance on which an enzyme acts • A molecule which speeds up a chemical reaction • The reaction product inhibits the enzyme activity • Protein molecules that act as biological catalysts • To alter the structure of a protein by breaking bonds • What is left after the enzyme binds with the substrate • ...

vocab 5 2017-03-29

vocab 5 crossword puzzle
Across
  1. Reaction where the oxidation number the the oxidation number increases by losing electrons
  2. A number that represents the number of electrons lost or gained by an atom
  3. AB + CD -> AD + CB
  4. Reaction leaving a precipitate left
  5. When an acid and a base react to form water and salt
  6. The ability of a substance to undergo chemical changes
  7. A chart showing the reactivity of elements
Down
  1. Solid left in a solution after a chemical reaction
  2. A + BC -> AC
  3. Ability of a substance to dissolve in a solvent
  4. hydrocarbon + oxygen -> carbon dioxide + water
  5. AB -> A+B
  6. A + B -> AB
  7. An equation that only includes ions that react
  8. Reaction where where the oxidation number decreases by gaining electrons

15 Clues: AB -> A+B • A + B -> AB • A + BC -> AC • AB + CD -> AD + CB • Reaction leaving a precipitate left • A chart showing the reactivity of elements • hydrocarbon + oxygen -> carbon dioxide + water • An equation that only includes ions that react • Ability of a substance to dissolve in a solvent • Solid left in a solution after a chemical reaction • ...

Vocabulary 2025-03-19

Vocabulary crossword puzzle
Across
  1. a reaction between any combustible substance and an oxidiser occurs to form an oxidised product
  2. molecules that contain only two atoms bonded together to one anotehr
  3. number that appears in front of the chemical formula in order to balance the atoms on both sides
  4. original substances
  5. a process by which one or more substances is changed into one more different substances
  6. resulting substances
Down
  1. a reaction of two or more reactants to form a product
  2. an equal balance of the numbers of the reactants and products
  3. describes the stoichiometry of some chemical reactions in which one element or ligand is replaced by a atom or group
  4. a discovery that mass is not created or destroyed during a chemical reaction
  5. a reaction in which a positive ion and a negative ions of two ionic compounds exchange places
  6. the reaction in which a reaction of a compound breaks down into two or more simpler substances

12 Clues: original substances • resulting substances • a reaction of two or more reactants to form a product • an equal balance of the numbers of the reactants and products • molecules that contain only two atoms bonded together to one anotehr • a discovery that mass is not created or destroyed during a chemical reaction • ...

Science, Physics and Math Crossword 11th Grade 2025-09-30

Science, Physics and Math Crossword 11th Grade crossword puzzle
Across
  1. level - Probability of rejecting true hypothesis.
  2. - Scalar value from a square matrix.
  3. - Rectangular array of numbers.
  4. formula - Exact number of atoms in molecule.
  5. equilibrium - Forward and reverse reactions occur at same rate.
  6. test - Procedure to test assumptions in statistics.
  7. deviation - Measure of data spread from mean.
  8. - Scalar showing how vector changes under transformation.
  9. function - Function with variable in exponent.
  10. - Solution resisting pH changes.
  11. - Calculation of reactants and products in reaction.
  12. - Square of standard deviation.
  13. energy - Minimum energy required for reaction.
  14. solution - Solution holding maximum solute at temperature.
  15. mass - Mass of one mole of substance.
  16. - Substance donating protons in reaction.
  17. - Substance accepting protons in reaction.
  18. composition - Percent by mass of each element in compound.
  19. - Inverse operation of exponentiation.
Down
  1. number - 6.022 × 10^23 particles per mole.
  2. - Amount of substance dissolving in solvent.
  3. rate - Speed of chemical reaction.
  4. space - Mathematical structure formed by vectors.
  5. - Amount of substance containing Avogadro’s number.
  6. - Instantaneous rate of change of a function.
  7. - Predicting relationship between variables.
  8. - Value approached by a function as input approaches a point.
  9. equation - Equation involving derivatives.
  10. - Measure of relation between two variables.
  11. - Process of finding unknown concentration with known solution.
  12. formula - Simplest whole-number ratio of elements.
  13. - Measure of likelihood of event.
  14. - Area under a curve in mathematics.
  15. - Substance changing color at endpoint.
  16. - Solid formed in chemical reaction.
  17. theory - Explanation of how particles react when colliding.
  18. - Measure of hydrogen ion concentration.
  19. - Vector not changed in direction by transformation.
  20. - Substance speeding reaction without being consumed.

39 Clues: - Rectangular array of numbers. • - Square of standard deviation. • - Solution resisting pH changes. • - Measure of likelihood of event. • rate - Speed of chemical reaction. • - Scalar value from a square matrix. • - Area under a curve in mathematics. • - Solid formed in chemical reaction. • mass - Mass of one mole of substance. • - Inverse operation of exponentiation. • ...

Lucas Da Silva 2022-03-08

Lucas Da Silva crossword puzzle
Across
  1. the number in front of the formula
  2. he symbolic representation of a chemical reaction in the form of symbols and formula
  3. a lowest nuber ration of elements within a compound
  4. mass of 1 mole of a substance
  5. 6.022 x 10^23
  6. a conversion factor between compounds in a chemical reaction
Down
  1. the percent ratio of actual yield to the theoretical yield
  2. multiple of an empirical formula
  3. A measure of a chemical reaction's efficiency, as a ratio of moles of product to moles of reactant.
  4. is a reactant in a chemical reaction that determines the amount of product that is formed
  5. the study of ratios within chemical reactions

11 Clues: 6.022 x 10^23 • mass of 1 mole of a substance • multiple of an empirical formula • the number in front of the formula • the study of ratios within chemical reactions • a lowest nuber ration of elements within a compound • the percent ratio of actual yield to the theoretical yield • a conversion factor between compounds in a chemical reaction • ...

Chemical Reactions Crossword Puzzle 2021-10-04

Chemical Reactions Crossword Puzzle crossword puzzle
Across
  1. substance that ENTERS into a chemical reaction
  2. mixture that dissolves and is spread out evenly
  3. matter made of only ONE kind of atom
  4. type of reaction that RELEASES energy, usually in the form of heat
  5. substance that does the dissolving in a solution
  6. particles do not settle
Down
  1. uniform composition or substances evenly mixed
  2. substances NOT evenly mixed
  3. substance formed as a result of a chemical reaction
  4. substance that gets dissolved in a solution
  5. matter that CAN be physically separated and contains 2 or more substances
  6. type of reaction that ABSORBS energy
  7. particles do settle, particles are spread out but do not dissolve
  8. made up of two or more elements
  9. anything that has mass and takes up space

15 Clues: particles do not settle • substances NOT evenly mixed • made up of two or more elements • type of reaction that ABSORBS energy • matter made of only ONE kind of atom • anything that has mass and takes up space • substance that gets dissolved in a solution • uniform composition or substances evenly mixed • substance that ENTERS into a chemical reaction • ...

chemistry crossword 2015-11-19

chemistry crossword crossword puzzle
Across
  1. formula combination of symbols that represent a compound
  2. shells orbit of electrons around the nucleus of an atom
  3. atom that has become electrically charged because it has lost or gained elections
  4. change change in the appearance or state of a substance that does not change the composition
  5. substance is only made up of one matter
  6. chemical reaction that releases energy
  7. is also a cloudy mixture but the particles are to small that its cannot be separated easily
  8. mixture mixture in which the different substances that make up the mixture visible
  9. number its the sum of the number of protons and neutrons in an atom
  10. substance that reacts with another substance in a chemical to create a new substance
  11. ions group of atoms acting as one
  12. positive charged particle in the nucleus of an atom
  13. compound pure substance formed when at least one metal and one non metal combine
Down
  1. group of atoms joined by covalent bonds
  2. vertical column of elements in the periodic table
  3. is a cloudy mixture in which tiny particles of one substance are held within another
  4. property description of how substance interacts with other substance
  5. reaction chemical reaction that absorbs energy
  6. gas group 18 elements in the periodic table the most stable and unreactive elements
  7. shiny,malleable,ductile element that conducts electricity
  8. change when the results of 2 substance created a new substance but a different substance from the first 2
  9. chemical combination of 2 or more elements in a specific ratio
  10. number number of protons in the nucleus of one atom of an element
  11. horizontal row of elements in the periodic table

24 Clues: ions group of atoms acting as one • chemical reaction that releases energy • group of atoms joined by covalent bonds • substance is only made up of one matter • reaction chemical reaction that absorbs energy • horizontal row of elements in the periodic table • vertical column of elements in the periodic table • positive charged particle in the nucleus of an atom • ...

Chemistery Crossword 2015-11-13

Chemistery Crossword crossword puzzle
Across
  1. amount of mass in a given volume of a substance
  2. vertical column of elements in the periodic table
  3. element that has both metal and non-metal properties
  4. shiny, malleable, ductile element that conducts electricity
  5. invisible negatively charged particle that orbits the nucleus of an atom
  6. pure substances formed when non-metals combine
  7. atom that has become electrically charged
  8. catalyst involved in chemical reactions in living things
  9. description of a substance that can be pounded or rolled into sheets
  10. a substance that is neither an acid nor a base
  11. elements and compounds that organisms need fro living
Down
  1. pure substance that cannot be broken down into other substances
  2. substance that helps a chemical reaction to proceed more quickly
  3. combination of pure substances
  4. pure substance formed when at least one metal and non-metal combine
  5. horizontal row of elements in the periodic table
  6. group 18 elements in the periodic table
  7. group 17 elements in the periodic table
  8. an experiment in which 1 or more products of a chemical reaction can escape
  9. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  10. group of atoms joined by covalent bonds
  11. neutral particle in the nucleus of an atom
  12. dull, brittle element that does not conduct electricity
  13. chemical combination of 2 or more elements in a specific ratio
  14. the smallest part of an element that is representative of that element

25 Clues: combination of pure substances • group 18 elements in the periodic table • group 17 elements in the periodic table • group of atoms joined by covalent bonds • atom that has become electrically charged • neutral particle in the nucleus of an atom • pure substances formed when non-metals combine • a substance that is neither an acid nor a base • ...

Unit 3 Vocabulary Assignment 2024-02-05

Unit 3 Vocabulary Assignment crossword puzzle
Across
  1. a biological process which converts sugars such as glucose, fructose, and sucrose into cellular energy.
  2. A chemical energy made from the cell.
  3. The substances which participate in a chemical reaction
  4. an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur.
  5. How Plants make their own food
  6. a series of protein complexes and other molecules that transfer electrons from electron
  7. Does not need oxygen
Down
  1. use stored chemical energy from the light-dependent reactions to “fix” CO2 and create a product that can be converted into glucose.
  2. Cellular resperation with no oxygen
  3. glucose is broken down into carbon dioxide and water.
  4. responsible for the absorption of light to provide energy for photosynthesis.
  5. happen in the thylakoid membrane of the chloroplasts and occur in the presence of sunlight.
  6. a metabolic process by which glucose or other six-carbon sugars are converted into cellular energy and the metabolite lactate
  7. Needs oxygen
  8. a process in which one or more substances are converted to one or more different substances
  9. splits glucose into two pyruvate molecules.
  10. the process by which biological fuels are oxidized in the presence of an inorganic electron acceptor such as oxygen
  11. The energy of chemical substances that is released when the substances undergo a chemical reaction and transform into other substances.
  12. The substance developed after a biological reaction has occurred
  13. A molecule that is combined with a phosphate to make ATP

20 Clues: Needs oxygen • Does not need oxygen • How Plants make their own food • Cellular resperation with no oxygen • A chemical energy made from the cell. • splits glucose into two pyruvate molecules. • glucose is broken down into carbon dioxide and water. • The substances which participate in a chemical reaction • A molecule that is combined with a phosphate to make ATP • ...

Elements Compounds Mixtures 2024-08-12

Elements Compounds Mixtures crossword puzzle
Across
  1. A pure substance made of only one type of atom.
  2. Shell A grouping of electrons surrounding the nucleus of an atom.
  3. The substances formed as a result of a chemical reaction.
  4. A type of mixture where the components are not evenly distributed.
  5. Structure The arrangement of protons, neutrons, and electrons within an atom.
  6. The smallest unit of an element, consisting of protons, neutrons, and electrons.
  7. A type of mixture that has a uniform composition throughout.
  8. Bond The force that holds atoms together in a molecule or compound.
  9. A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound.
Down
  1. A particle with no charge, found in the nucleus of an atom.
  2. An element that usually lacks metallic properties and is often a poor conductor of electricity.
  3. A substance formed when two or more elements are chemically bonded together.
  4. A negatively charged particle that orbits the nucleus of an atom.
  5. A mixture of two or more elements, where at least one is a metal.
  6. Substance A material that has a constant composition and consistent properties throughout.
  7. A positively charged particle found in the nucleus of an atom.
  8. The starting substances that undergo a chemical reaction.
  9. An element that has properties intermediate between metals and non-metals.
  10. Equation A symbolic representation of a chemical reaction, showing the reactants and products.
  11. A type of element that is typically shiny, malleable, and a good conductor of electricity.
  12. Levels The specific energies that electrons can have in an atom.
  13. A combination of two or more substances that are not chemically bonded.

22 Clues: A pure substance made of only one type of atom. • The substances formed as a result of a chemical reaction. • The starting substances that undergo a chemical reaction. • A particle with no charge, found in the nucleus of an atom. • A type of mixture that has a uniform composition throughout. • A positively charged particle found in the nucleus of an atom. • ...

Unit 1&2 vocab 2024-09-27

Unit 1&2 vocab crossword puzzle
Across
  1. The fixed energies an electron can have in an atom
  2. A form of energy that can be transfered between objects
  3. The central part of an atom containing protons and neutrons
  4. The process of a substance changing from one state to another
  5. The smallest unit of a chemical element
  6. A form of energy that exhibits wavelike behavior as it travels through space
  7. Everything outside of the system being studied
  8. A measure of how hot or cold something is
  9. The electrons in the outermost shell of an atom that are involved in chemical bonding
  10. Neutral subatomic particles locatedin the nucleus
  11. A reaction that absorbes heat
  12. A measure of the disorder or randomness in a system
  13. A pure substance consisting of only one type of atom
Down
  1. The distance between successive peaks of a wave
  2. Positevly charged subatomic particles located in the nucleus of an atom
  3. The movement of heat from one substance to another
  4. A tabular arrangement of the chemical elements, organized by atomic number
  5. The energy of moving particles in a substance, related to temperature
  6. The part of the universe being studied in a chemical reaction
  7. A fundamental property of electrons that describes their intrinsic angular momentum
  8. The process of measuring heat changes in a chemical reaction
  9. A unit of energy used to measure heat
  10. The total heat content of a system
  11. The number of protons in the nucleus of an atom, which determines the element's identity

24 Clues: A reaction that absorbes heat • The total heat content of a system • A unit of energy used to measure heat • The smallest unit of a chemical element • A measure of how hot or cold something is • Everything outside of the system being studied • The distance between successive peaks of a wave • Neutral subatomic particles locatedin the nucleus • ...

Photosynthesis And Cellular Respiration (spaces in words are -) 2023-11-16

Photosynthesis And Cellular Respiration (spaces in words are -) crossword puzzle
Across
  1. The process that creates glucose
  2. Carbon _____
  3. To change
  4. the parts of a reaction
  5. Where chlorophyll is stored in a plant
  6. A plant is an example of a ____
  7. The process that turns glucose into ATP
Down
  1. A reaction with light
  2. Where cellular respiration is done
  3. The cycle that carbon goes through
  4. A fungi is a ____
  5. one of the reactants of photosynthesis
  6. A reaction that cannot be undone
  7. The end of a reaction
  8. The sweet sticky white stuff made in photosynthesis

15 Clues: To change • Carbon _____ • A fungi is a ____ • A reaction with light • The end of a reaction • the parts of a reaction • A plant is an example of a ____ • The process that creates glucose • A reaction that cannot be undone • Where cellular respiration is done • The cycle that carbon goes through • Where chlorophyll is stored in a plant • one of the reactants of photosynthesis • ...

Chemical Reactions 2022-11-16

Chemical Reactions crossword puzzle
Across
  1. an acid releases this into water
  2. bitter substance with high pH
  3. Chemical __________, causes a chemical change
  4. sour substance with a low pH
  5. a reaction that releases energy
Down
  1. a base releases this into water
  2. chemical reactions do this to atoms
  3. starting material in a reaction
  4. displacement reaction two kinds of atoms trade

9 Clues: sour substance with a low pH • bitter substance with high pH • a base releases this into water • starting material in a reaction • a reaction that releases energy • an acid releases this into water • chemical reactions do this to atoms • Chemical __________, causes a chemical change • displacement reaction two kinds of atoms trade

Courtney Couts Chemical Reactions Ch.13 2016-10-09

Courtney Couts Chemical Reactions Ch.13 crossword puzzle
Across
  1. A+B-> AB
  2. it is very hard, not impossible, to reverse
  3. AB+CD-> AD+CB
  4. If changed the equilibrium shifts to oppose change, until new or equilibrium is reached.
  5. energy transfers from reactants to surroundings (exo- exit)
  6. must be added to break bonds
  7. Change the rate of chemical reactions
Down
  1. AB+C-> AC+B
  2. the energy stored in molecules that can be released during a reaction
  3. when reaction and its reverse act at the same rate.
  4. a substance that is the result of the chemical change
  5. energy is transferred to reactants from surroundings
  6. a substance that undergoes a chemical change
  7. when a solid material forms from a chemical change
  8. AB-> A+B

15 Clues: A+B-> AB • AB-> A+B • AB+C-> AC+B • AB+CD-> AD+CB • must be added to break bonds • Change the rate of chemical reactions • it is very hard, not impossible, to reverse • a substance that undergoes a chemical change • when a solid material forms from a chemical change • when reaction and its reverse act at the same rate. • energy is transferred to reactants from surroundings • ...

Chemistry Review - SNC2L 2023-11-09

Chemistry Review - SNC2L crossword puzzle
Across
  1. pH stands for the 'power of ______'
  2. What element has the symbol Pb?
  3. What element is high in bananas? Hint: Symbol K
  4. What type of chemical would have a pH of 10?
  5. What type of reaction breaks compounds apart?
  6. What type of change is paper burning?
  7. What type of chemical is HCl?
Down
  1. What type of reaction makes a compound?
  2. A chemical ________ tells us how many atoms of each element are in a molecule.
  3. Elements are made of ______?
  4. What pH is neutral?
  5. How many oxygen atoms are in Glucose (C6H12O6)?
  6. What element has the atomic number of 8?
  7. What type of change is Ice melting?
  8. What type of combustion has a blue flame?

15 Clues: What pH is neutral? • Elements are made of ______? • What type of chemical is HCl? • What element has the symbol Pb? • pH stands for the 'power of ______' • What type of change is Ice melting? • What type of change is paper burning? • What type of reaction makes a compound? • What element has the atomic number of 8? • What type of combustion has a blue flame? • ...

Chemical and Physical change 2024-09-17

Chemical and Physical change crossword puzzle
Across
  1. An atom or molecule.
  2. physical change from a solid to a gas. The dry ice in smoke machines ________ into a gas at room temperature.
  3. bond: An attractive force that holds two atoms together Chemical bonds are broken, formed during chemical changes not physical changes.
  4. physical change from a liquid to gas. Water droplets on a leaf evaporate into water vapour and rise into the air.
  5. change: Change in matter that forms one or more new substances. Substances form when atoms re-arrange. This change is hard to reverse.
  6. Any substance that takes up space and has ____. Examples of ______ include wood, water, air and your body.
  7. physical change from a gas to a liquid. Droplets form on the outside of a cold drink bottle because of water vapour condensing.
  8. substance with no fixed shape or volume. Particles move quickly and spread apart.
  9. physical change where a solid spreads through a liquid. When sugar is stirred into hot water, it dissolves to make a solution.
  10. Any substance that can burn. _____. include paper, wood and petrol.
Down
  1. change: change in matter that does not form new substances. When you crush a can, it changes shape but is still the same substance.
  2. substance with a fixed volume that flows and changes shape. Particles stay close together but move around each other freely.
  3. The breakdown of food by physical and chemical changes
  4. reaction: A reaction that absorbs heat. Causes the temperature to become cooler.
  5. reaction: A reaction that releases heat. Causes the temperature to become hotter.
  6. physical change from a liquid to a _____.
  7. physical change from a solid to liquid. If you heat chocolate on a stove, it will __.
  8. physical change where two or more substances are combined.
  9. chemical change where iron combines with oxygen and water. The new substance formed by this chemical change is iron oxide, or _____.
  10. of matter: One of the forms that ______ can take, such as solid, liquid or gas. The most familiar ¬¬______ __ ______ are solid, liquid and gas, but there are others.

20 Clues: An atom or molecule. • physical change from a liquid to a _____. • The breakdown of food by physical and chemical changes • physical change where two or more substances are combined. • Any substance that can burn. _____. include paper, wood and petrol. • reaction: A reaction that absorbs heat. Causes the temperature to become cooler. • ...

enzyme vocab 2023-12-05

enzyme vocab crossword puzzle
Across
  1. building reaction
  2. chemicals that reduce the activation energy of the energy
  3. starting material for chemical reaction
  4. release of energy
  5. absorption of energy
Down
  1. site where a single molecule can fit
  2. break down reaction
  3. site The region on the enzyme where the substrate binds
  4. substance on which an enzyme acts during a chemical reaction
  5. slow down or stop enzyme reaction

10 Clues: building reaction • release of energy • break down reaction • absorption of energy • slow down or stop enzyme reaction • starting material for chemical reaction • site where a single molecule can fit • site The region on the enzyme where the substrate binds • chemicals that reduce the activation energy of the energy • ...

Chemical Reactions Vocab 2022-02-15

Chemical Reactions Vocab crossword puzzle
Across
  1. "uncuttable" stuff
  2. liquid to gas phase change
  3. the result of a chemical reaction
  4. what you start with before rearrangement
  5. solid to liquid phase change
  6. plant food
  7. atomic rearrangement
  8. the code for what stuff is made of
Down
  1. all the same atoms or groups of atoms
  2. a network of repeating atoms
  3. provides understanding to the invisible
  4. a macroscale observation
  5. a damaging chemical reaction
  6. to cause a new combination
  7. a specific group of atoms
  8. size, relatively speaking

16 Clues: plant food • "uncuttable" stuff • atomic rearrangement • a macroscale observation • a specific group of atoms • size, relatively speaking • liquid to gas phase change • to cause a new combination • a network of repeating atoms • a damaging chemical reaction • solid to liquid phase change • the result of a chemical reaction • the code for what stuff is made of • ...

Biology Ch.2 Crossword - Kirsten Warren 2018-10-01

Biology Ch.2 Crossword - Kirsten Warren crossword puzzle
Across
  1. a substance produced by a living organism that acts as a catalyst to bring about specific biochemical reaction
  2. acid a simple organic compound containing both a carboxyl (—COOH) and an amino (—NH2) group.
  3. the action or fact of forming a united whole
  4. a compound consisting of a nucleoside linked to a phospate group.
  5. the tendency of energy to disperse
  6. the action or process of adhering to a surface or object
  7. any of a large group of organic compounds occuring in foods and living tissues and including sugars, starch, and cellulose.
  8. any of the class of soluble, crystalline, typically sweet-tasting carbohydrates found in living tissues and exemplified by glucose and sucrose
  9. bulding blocks for matter
  10. a substance formed when two or more chemical elements are chemically bonded together
Down
  1. a pure substance made of only 1 kind of atom
  2. change rearanges the atoms
  3. measure of the average speed of the particles within a substance
  4. a thing that is composed of 2 or more seperate elements
  5. get things done
  6. any of a class of organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents.
  7. Change do not change a matter's identity
  8. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  9. a substance that takes part in and undergoes change during a reaction
  10. a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds

20 Clues: get things done • bulding blocks for matter • change rearanges the atoms • the tendency of energy to disperse • Change do not change a matter's identity • a pure substance made of only 1 kind of atom • the action or fact of forming a united whole • a thing that is composed of 2 or more seperate elements • the action or process of adhering to a surface or object • ...