solid and liquid and gas

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Across
  1. 2. ice into water
  2. 4. happens all around the pot
  3. 7. the water disappear in to thin air
  4. 8. water to ice
Down
  1. 1. heat levels gas
  2. 3. heat goes into the solid
  3. 5. what happens when water freezing
  4. 6. what happens when water boil what goes in the air