Across
- 5. the smallest planet
- 7. a natural satellite that orbits a planet
- 9. the planet that spins on its side
- 11. windiest planet in our solar system
- 13. The ______ planets are made of gas
- 14. also known as the "red planet"
Down
- 1. the biggest planet in size
- 2. made up of a star and the planets that revolve around it
- 3. the hottest planet
- 4. A large body that orbits a star
- 6. The inner planets have _____ surfaces
- 8. The ______ planets are made of rock
- 10. the planet with the most rings
- 12. the only planet with life on it