Solar System

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Across
  1. 3. massive ball of hydrogen and helium
  2. 4. dark cold and windy
  3. 6. covered in swirling
  4. 8. last inner planet
Down
  1. 1. second planet to the sun
  2. 2. no atmosphere
  3. 5. The only planet that supports
  4. 7. very cold and windy