unit cover phases

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Across
  1. 3. phases changing
  2. 4. gas to solid
  3. 7. energy the molecules have
  4. 10. below 0 degrees
  5. 12. but the subtance changes
  6. 15. average thermal energy
  7. 17. liquid to gas
Down
  1. 1. gas to liquid
  2. 2. how attracted molecules are to each other
  3. 5. solid to gas
  4. 6. energy in motion
  5. 8. and liquid turning to a gas
  6. 9. liquid to gas
  7. 11. solid to liquid
  8. 13. substance a subtance is hot
  9. 14. liquid to solid below 0 degrees
  10. 16. collection of atoms