Planets Crossword

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Across
  1. 3. 8th planet
  2. 4. 4th planet
  3. 7. 7th planet
  4. 8. 5th planet
Down
  1. 1. 1st planet
  2. 2. 2nd planet
  3. 5. 6th planet
  4. 6. 3rd planet