Phases of Matter

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Across
  1. 4. Process of a gas turning into a liquid
  2. 5. Substance of moderate-energy molecules
  3. 6. Substance of high-energy molecules
  4. 8. Process of a solid turning into a liquid
  5. 10. Process of a liquid turning into a gas
Down
  1. 1. Process of a liquid turning into a solid
  2. 2. a single unit of a periodic element
  3. 3. Substance of low-energy molecules
  4. 7. Process of a solid turning into a gas
  5. 9. a cluster of atoms bound together