criss-cross

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Across
  1. 2. hard and freezing with cold
  2. 6. how hard gravity pulls on an object
  3. 8. a liquid into a gaseous phase
  4. 11. heterogeneous,homogeneous
  5. 12. a gas to a liquid
  6. 14. doesn’t change on different planets
  7. 15. atoms will be different but molecules will be the same
  8. 17. is a physical property of matter
  9. 19. not evenly mixed
Down
  1. 1. element,compounds
  2. 3. water
  3. 4. joined
  4. 5. solid,liquid,gas
  5. 7. evenly mixed
  6. 9. cm3 cc ml
  7. 10. single
  8. 13. air
  9. 16. substances,mixtures
  10. 18. water at 0’
  11. 20. made of only 1kind of atom