states of matter

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Across
  1. 3. ice
  2. 5. gas turns to liquid
  3. 7. solid turns strait into gas
  4. 9. form of ice made out of CO2
  5. 10. liquid turns to solid
Down
  1. 1. vapor
  2. 2. group of two or more atoms
  3. 4. liquid turns into gas
  4. 6. water
  5. 8. another way to say thermal energy