Phases and Phase Changes

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Across
  1. 5. quantity of matter in an object
  2. 6. change of a liquid to a gas below the boiling point
  3. 7. change from a solid to a gas
  4. 11. change from gas to a liquid
  5. 13. gas form of H2O
  6. 15. change from a gas to a solid
  7. 17. change from solid to liquid
  8. 19. mass of substance divided by volume
  9. 20. motion energy
Down
  1. 1. measure of kinetic energy of the molecules of a substance
  2. 2. state of matter having no definite volume or shape
  3. 3. change of liquid to a gas
  4. 4. liquid form of H2O
  5. 8. anything that has mass and takes up space
  6. 9. change of a liquid to a solid
  7. 10. measure of the amount of space occupied by an object
  8. 12. state in which atoms or molecules are very close together and are regularly arranged
  9. 13. state of matter having definite volume and shape
  10. 14. change of liquid to a gas at the boiling point
  11. 16. state of matter having a definite volume but no definite shape
  12. 18. solid form of H2O