Science Crossword

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Across
  1. 1. the earths natural satellite
  2. 4. the third planet
  3. 5. the sixth planet
  4. 6. the seventh planet
  5. 7. the fourth planet
  6. 8. the fifth planet
Down
  1. 2. the eighth planet
  2. 3. the second planet
  3. 5. the center of the solar system
  4. 7. the first planet