Phase Change Crossword Puzzle

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Across
  1. 3. Phase change of matter from liquid to solid
  2. 5. A substance appears in different phases
  3. 7. The other phase changes of matter from liquid to gas
  4. 8. A substance that can expand freely to fill the entire container without a fixed shape and volume
  5. 10. A group of atoms bonded together and constituent substance
  6. 11. Phase change of matter from gas to liquid
Down
  1. 1. When a substance gains or loses a certain amount of energy, it changes from one form to another
  2. 2. Free-flowing but constant volume substance
  3. 4. Phase change of matter from liquid to gas
  4. 6. Phase change of matter from solid to liquid
  5. 9. A substance with a fixed volume and shape