science crossword puzzle

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Across
  1. 4. a watch shows the
  2. 6. The change in height
  3. 7. the thermostat has something you change in a building
  4. 9. coming together
  5. 10. The Sun can produce this for earth
  6. 11. plates the thing under the water that causes earthquakes
  7. 13. tiny things that are to small to the human eye to see
  8. 16. sliding against each other
  9. 17. positive particle
  10. 18. Something you use to fuel cars
  11. 19. crayons
Down
  1. 1. splitting apart
  2. 2. neutral particle
  3. 3. when i drive a car i *blank*
  4. 5. the *blank* between you and something else
  5. 8. negative charge
  6. 12. something you use in science
  7. 14. the *blank* of light
  8. 15. when you kick a ball it slows down because of
  9. 17. a sense of touch