Inner and Outer Planets

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Across
  1. 6. type of planet that is rocky
  2. 8. Second Planet from the Sun
  3. 10. Mars, Mercury, Venus, Mars are called ____ planets
  4. 11. The largest moon in the solar system
  5. 14. Planet with the longest day
  6. 16. Neptune's moons are named after water deity's from _____ mythology
  7. 17. Jupiter, Saturn, Uranus, Neptune are called ____ planets
  8. 18. planet with a moon named Titan
Down
  1. 1. planet with the Great Red Spot
  2. 2. Number of planets in our solar system
  3. 3. Uranus's moons were named after this author
  4. 4. Another name for the outer planets
  5. 5. largest volcano in the solar system
  6. 7. Only planet to support life
  7. 9. Smallest planet in the solar system
  8. 12. only planet whose moon orbits opposite
  9. 13. known as the "Red Planet"
  10. 15. planet that rotates on its side