6th science vocab

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Across
  1. 2. center of a atom
  2. 4. causes tides
  3. 5. go around sun
  4. 9. neutral charge of a atom
  5. 10. hole big black hole
  6. 12. goes around a atom
  7. 16. what every thing is made up of
  8. 18. energy energy that can be used again
  9. 19. center of solar system
  10. 20. positive charge of a atom
Down
  1. 1. energy nukes energy
  2. 3. dirty snowball
  3. 6. renewable energy energy that cant be used again
  4. 7. energy energy that could happen
  5. 8. water sticks to things that are not water
  6. 11. made up of multiple atoms to make something
  7. 13. 3rd planet from sun
  8. 14. blue renewable energy
  9. 15. water sticks to water
  10. 17. shed mountain water go to one place