phases of matter

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Across
  1. 2. tightly packed particles
  2. 6. volume of gas increase as temperature increases
  3. 9. liquid changing to a gas
  4. 10. a liquid changing into a solid
Down
  1. 1. volume of gas increases as pressure decreases
  2. 3. gas changing to a liquid
  3. 4. it makes up lightning
  4. 5. a solid changing into a liquid
  5. 7. very spread out particles that move fast
  6. 8. loosely packed particles allowing it to flow