Science Tic-Tac-Toe

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Across
  1. 3. Matter that moves freely apart
  2. 5. The process of changing from gas to plasma
  3. 6. The process of changing from plasma to gas
  4. 7. The process of changing from solid to liquid
  5. 8. The process of changing from gas to liquid
  6. 11. Matter that is tightly packed and vibrates about a fixed position
  7. 12. Matter that is broken apart into ions
  8. 14. Fast vaporization
  9. 15. The process of changing from gas to solid
Down
  1. 1. The process of changing from liquid to solid
  2. 2. A small portion of matter
  3. 4. The process of changing from liquid to gas
  4. 9. Slow vaporization
  5. 10. The process of changing from solid to gas
  6. 13. Matter that sides over each other