GR.8 Density and keywords crossword puzzle.

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Across
  1. 2. the amount of space an object takes up
  2. 3. a liquid and a gas
  3. 5. the temperature at which solid changes to liquid.
  4. 6. the temperature at which a liquid changes to gas
  5. 7. anything that has particles
  6. 9. from gas to liquid
  7. 11. all very small particles
  8. 13. a liquid less dense than water
  9. 14. from a liquid to a gas (hint shower)
  10. 15. an ionized forth matter
  11. 18. measure in base unit of liquid measure
  12. 19. solid to straight to gas
Down
  1. 1. from a gas straight to solid (heat released)
  2. 4. from a liquid to a solid
  3. 7. the amount of space an object contains
  4. 8. temperature increases particles move further apart
  5. 10. temperature deceases particles move closer together
  6. 12. the amount of space of an object takes up when placed in a fluid
  7. 16. from a solid to a liquid(heat added)
  8. 17. is mass of a given volume