Physical Changes & Chemical Reactions

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Across
  1. 3. The term used to describe a solid turning into a liquid
  2. 7. The term used to describe a liquid turning into a gas
  3. 8. A physical process where a solid breaks up in a liquid
  4. 9. A _________ change can be an indication of a chemical change
  5. 13. When two substances are combined together but can still be physically separated
  6. 14. Chemical changes are generally ___________; the original substances cannot be restored
  7. 16. Physical changes are generally ___________; the original substance can be restored
  8. 17. In a ________________ change no new substances are formed
  9. 19. During some chemical reactions _________ is released in the form of heat, sound or light
Down
  1. 1. In a __________ reaction new substances are formed
  2. 2. The substances you have at the beginning of a chemical reaction
  3. 4. The substances you have at the end of a chemical reaction
  4. 5. The term used to describe a gas turning into a liquid
  5. 6. During ______________ particles move closer together, causing the volume of the substance to decrease
  6. 10. If ___________ are produced during a chemical reaction it indicates a gas is being released
  7. 11. The solid formed during a chemical reaction with two liquids
  8. 12. The term used to describe a liquid turning into a solid
  9. 15. During ______________ particles move further away from each other, causing the volume of the substance to increase
  10. 18. Some chemical reactions must absorb energy in the form of _________ in order to occur