Across
- 2. Named after the god of war
- 5. Has the fastest orbit in our solar system
- 6. 2nd closest planet to the sun
- 7. Furthest planet from the sun
Down
- 1. Only planet that has trees on it
- 3. The least dense of all the planets
- 4. Biggest planet in our solar system
- 8. This planet is no longer a planet
- 9. The only planet that rotates on its side