Solids, Liquids and Gases

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Across
  1. 4. the temperature when a solid turns into a liquid (7,5)
  2. 6. when something gets smaller as it cools
  3. 9. we must add this to melt a solid
  4. 10. changing from a liquid to a gas
  5. 11. a state of matter which has a fixed shape
  6. 12. the gaseous form of water
  7. 13. changing from a liquid to a solid
  8. 14. the particles in this state of matter are touching but can change place
Down
  1. 1. changing from a solid to a liquid
  2. 2. the temperature when a liquid turns into a gas (7,5)
  3. 3. to make something expand, we must _____ it
  4. 5. the only state of matter which can be compressed
  5. 7. changing from a gas to a liquid
  6. 8. all substances are made up of these
  7. 10. when something gets bigger when heated
  8. 15. the solid form of water