Across
- 2. The only planet that spins on its side.
- 6. The largest volcano in our solar system, located on Mars.
- 9. The largest planet in our solar system.
Down
- 1. The only planet known to support life.
- 3. The outermost known planet in our solar system.
- 4. The hottest planet in our solar system.
- 5. The planet known for its beautiful rings.
- 7. The second smallest planet in our solar system.
- 8. The planet closest to the Sun.