Solar system vocabulary

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Across
  1. 3. revolving around other objects
  2. 5. weird shaped rocks that orbit stars
  3. 7. space rock that is made of ice and dust
  4. 8. giants planets that are made of gas
  5. 9. the force that pulls all objects to each other
Down
  1. 1. very large objects that orbit a star
  2. 2. The center of an object
  3. 4. solid objects that travel around a planet
  4. 6. planets small planets that orbit a star
  5. 7. a hole in the ground caused by space material