Across
- 5. the seventh planet from the sun
- 6. ptolemy's model of the universe
- 8. the first terrestrial planet
- 9. the hottest planet
- 11. the planet furthest from the sun
Down
- 1. known for its rings
- 2. a rocky planet known as the red planet
- 3. galileo's model of the universe
- 4. the largest gas giant
- 7. the only known planet with life
- 10. center of our solar system