Chapter 11 Vocabulary Test: Properties /Changes in Matter

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Across
  1. 11. The properties of a substance become different
  2. 12. A characteristic of matter that can be observed and measured without changing the matter
  3. 14. Chemical reactions that release energy
  4. 16. Ability to burn or ignite
  5. 18. A measure of mass per unit of volume, of how closely the particles in an object are packed together
  6. 20. Something that increases the rate of a chemical reaction
  7. 21. The behavior of a substance when it undergoes a chemical change or reaction
  8. 22. Substances used in chemical reactions that are changed into something else
  9. 23. The amount of matter in an object
  10. 24. When a solid spreads and mixes evenly into a liquid
Down
  1. 1. These describe chemical reactions
  2. 2. The temperature at which boiling occurs in a liquid
  3. 3. The measure of power
  4. 4. States that wnenever a chemical change occurs, the total mass of substance in a chemical reacton remains the same throughout the change
  5. 5. The ability of matter to undergo chemical reactions with other kinds of matter
  6. 6. The amount of space that matter occupies
  7. 7. The temperature at which a solid becomes a liquid
  8. 8. When two or more kinds of matter interact
  9. 9. The change of state when a solid changes directly into a gas
  10. 10. The volume of fluid that is pushed aside by an object
  11. 13. The type of change when matter forms new substances with differenct physical and chemical properties from the original matter
  12. 15. The weakening of metals caused by chemical action
  13. 17. New substances produced during a chemical change
  14. 19. Chemical reactions that absorb energy