WIZZ

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Across
  1. 1. No. Of days moon takes to go through all of the phases
  2. 3. Holds planets in orbit
  3. 6. The gas that Sun is mainly made out of
  4. 7. All the outer planets have this characteristic
  5. 9. A barren chunk of ice, rock and dust that revolves around the sun
Down
  1. 2. Planet with life on it
  2. 4. Order of earth, sun and moon during Lunar Eclipse
  3. 5. Area which contains planets, stars and satellites
  4. 8. Planet named after Roman God of Sea