Across
- 6. Planets close to the sun
- 8. Separates Inner and outer planets
- 9. Scientific term for air
- 13. clockwise spin (the opposite direction of Earth)
- 14. Distance between earth and the sun
- 15. A celestial object that has a atmosphere and a moon
Down
- 1. What made Venus have a thin atmosphere
- 2. Earths sister planet
- 3. Some have little some have none
- 4. Hottest planet
- 5. How long it takes for one cycle around the sun
- 7. Type of planet the inner planets are
- 10. Term for going around something
- 11. Our planet
- 12. Called the red planet