Matter

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Across
  1. 3. a mixture with no visible parts
  2. 4. anything that has mass and occupies space
  3. 5. a mixture with visibly different parts
  4. 6. amount of heat energy required to go from liquid to gas
  5. 8. pure elements and pure compounds are considered?
  6. 10. stored energy
  7. 13. energy can not be created or destroyed
  8. 16. when a liquid turns into a solid
  9. 18. solid to gas
  10. 19. absorbes energy
  11. 20. Made up of 2 or more different elements combined chemically
Down
  1. 1. 2 or more substances each retaining its properties
  2. 2. the simplest form of a substance
  3. 3. amount of heat energy needed to go from solid to gas
  4. 7. gas to solid
  5. 9. absorbed energy
  6. 11. when a gas turns into a liquid
  7. 12. measurement of the heat released/absorbed during a chemical reaction
  8. 14. separation due to size and charge
  9. 15. releases heat energy
  10. 17. separation due to boiling point