Matter by Zac

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Across
  1. 3. where a solid becomes a liquid
  2. 4. the space a thing takes up
  3. 6. to pour and spread out
  4. 11. the point where a solid melts
  5. 13. properties pertaining to chemicals
  6. 17. pertaining to the body or energy other than those that are chemical
  7. 18. the smallest thing known to man
  8. 19. where the particles are closed up and you cannot go through
  9. 21. the substance physical objects are composed of
Down
  1. 1. the point at which a liquid becomes a gas
  2. 2. particles that are further apart than in a solid
  3. 5. to refine or purify
  4. 7. energy created by movement
  5. 8. explaining how things work
  6. 9. earth water air and fire
  7. 10. the space occupied by a body or substance
  8. 12. where a liquid becomes a gas
  9. 14. - the rate at which something expands on heating
  10. 15. particles are far apart
  11. 16. where a gas becomes a liquid
  12. 20. where a liquid becomes a solid