Space

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Across
  1. 7. a rock that orbits the sun
  2. 9. the dark part of the moon
  3. 10. fall: falling without anything
  4. 15. it rotates around the sun
  5. 16. of rocks that fall to the earth sometimes
  6. 17. energy:energy that is stored
  7. 20. object in space that studies the earth and space
  8. 21. what the planets do to the sun
  9. 22. how much you weigh
  10. 23. law of universal gravitation:all objects pull on each other
Down
  1. 1. energy: energy that is in motion
  2. 2. hole:nothing can escape not even light
  3. 3. of space all of everything
  4. 4. of the earth
  5. 5. motion:an object that falls side ways
  6. 6. effect: use energy from gravitation fields to slingshot an object
  7. 8. dwarf: a small star with lots of density
  8. 11. planets attraction because of their masses
  9. 12. comet:fast objects to train astronauts
  10. 13. gravity: you are weightless
  11. 14. nova:a ball of light that is a exploding of a big star
  12. 18. how much is in an object
  13. 19. laws:how the plants move