Across
- 10. celestial body that likes in the asteroid belt
- 11. Objects that orbit the sun farther than Neptune
- 12. referred to as "dirty snowballs"
- 13. known for beautiful rings around the planet
- 14. only terrestrial planet to prove that is has plate tectonics
- 15. largest gas giant planet
Down
- 1. coldest planet
- 2. Small rocky object that heats up as it enters Earths atmosphere
- 3. Cloud of icy planetesimals
- 4. Small rocky object before it enters Earth
- 5. the first blue planet
- 6. closest planet to the sun
- 7. has huge volcanoes and deep canyons
- 8. has a "runaway" greenhouse effect
- 9. Area of space beyond the orbit of Neptune