The Solar System

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Across
  1. 2. the gas giants are mostly made of hydrogen and
  2. 5. this planet has the fastest orbit - 88 days!
  3. 6. the planet with the nastiest atmosphere
  4. 9. the word that describes Uranus's rotation
  5. 10. the chemical that makes Uranus look blue
  6. 11. what it is that makes Mars look red
Down
  1. 1. this planet is so big it could almost be a star
  2. 3. a "shooting star"
  3. 4. space rocks that actually strike Earth
  4. 7. the largest of the dwarf planets
  5. 8. that planet that is least dense, it could float
  6. 10. Jupiter has 79 of these!