outer planets

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Across
  1. 1. seventh planet from the sun
  2. 4. cloud type of cloud that Jupiter and Saturn has
  3. 5. planet with The Great Red Spot
  4. 6. Outer planets made out of gases
  5. 7. metal center
  6. 9. jupiter, saturn, uranus, Neptune
Down
  1. 2. particles, dust, or ice floating around a planet
  2. 3. planet from the Kuiper Belt
  3. 4. the thing separating the inner/outer planets
  4. 8. layers each Jovian planet has distinct ?