Across
- 3. The coldest planet.
- 4. Also known as the "red planet".
- 8. It turns on its side.
- 9. The biggest planet.
Down
- 1. The hottest planet.
- 2. The closest planet to the sun.
- 5. The planet with the rings.
- 6. Only planet with life.
- 7. The center of our solar system.
