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