Forces and motion

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Across
  1. 4. large bodies in our solar system
  2. 5. the gases that make up our atmosphere
  3. 6. the air that is around the earth
  4. 8. gas lighter than air
  5. 11. force that brings objects together
  6. 12. moving something by pressing it
  7. 14. the rocky body near earth
  8. 15. a push or pull
Down
  1. 1. groups of galaxy clusters
  2. 2. last name newton
  3. 3. groups of stars and planets
  4. 7. grab an object and move it towards you
  5. 9. the planet we live in
  6. 10. movement
  7. 13. a ball of gas in a system or galaxy