Solar system

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Across
  1. 4. is like a dirty snowball
  2. 6. It is in space to get data
  3. 8. When a space rock hits the earth's atmosphere
  4. 10. Pluto is this
Down
  1. 1. sun is in the center
  2. 2. known as minor planets
  3. 3. partially shaded outer region
  4. 5. a rock that is in space
  5. 7. oval shaped
  6. 9. takes a year to go around sun