Across
- 3. The four planets closest to the sun
- 5. Another name for Earth
- 8. A ring of asteroids that orbit the sun
- 9. One moon of Mars
- 11. A planet that has no moons
Down
- 1. One moon of Mars
- 2. Floating rock masses in space
- 4. The planet that we live on
- 6. Closest planet to the sun
- 7. The movement of a planet around a star
- 10. A planet with a red surface