Changes of state

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Across
  1. 4. when a solid turns into a liquid by its particles separating
  2. 5. when something is super cold and is a solid
  3. 6. when a liquid turns into a gas
  4. 7. when a gasturinto a liquid
Down
  1. 1. when a liquid or a gas turns into a solid or a fixed shape
  2. 2. when something loses all of its quality's
  3. 3. when something moves out of its place