Crossword thing

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Across
  1. 2. small version of the solar system
  2. 4. when the moon is full
  3. 5. rock in space, not dinosaurs friend
  4. 7. keeps planets in the solar system
  5. 9. see them in the sky
  6. 10. 365.25 days
  7. 11. what the earth does to the sun
Down
  1. 1. planet made of ice
  2. 2. the galaxy that we are in
  3. 3. planet made of gas
  4. 6. 24 hours
  5. 8. in the middle of the earth