Matter

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Across
  1. 2. the smallest unit of matter
  2. 4. 2 or more elements combined
  3. 6. in the air
  4. 9. not evenly mixed
  5. 12. measured on a balance
  6. 14. water drops outside a cup
  7. 16. pure substance
  8. 18. 2 or more elements not physically combined
  9. 19. flows
  10. 20. measured in different units
Down
  1. 1. hard
  2. 3. evenly mixed
  3. 5. solid liquid gas
  4. 7. below 33 degrees fahrenheit
  5. 8. the amount of space an object takes up
  6. 10. happens at high temperatures, state changes from liquid to gas.
  7. 11. compound or mixture
  8. 13. contains atoms
  9. 15. hot temperatures causing evaporation happens at 212 degrees fahrenheit
  10. 17. a physical substance in general