Across
- 3. known for its rings
- 6. windiest planet
- 8. Mercury, Venus, Earth, and Mars are the planets closest to the Sun
- 9. tipped on its side
- 10. composed of liquid heavy metals
Down
- 1. the inner and outer planets are separated by an asteroid belt
- 2. gas giants
- 4. 5th planet away
- 5. Jupiter, Saturn, Uranus, and Neptune
- 7. altitudes dictated by the atmospheric levels