particle theory

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Across
  1. 2. the physical change
  2. 4. it is free to move in any direction
  3. 5. it is a firm object
  4. 6. you can't see it with the human eye
  5. 8. the material or stuff
  6. 9. there are particles all around us
  7. 10. the change from liquid to solid
Down
  1. 1. forms to the object it is in
  2. 3. the change from liquid to gas
  3. 7. The form a substance takes