Across
- 2. It's atmosphere is mostly made up of ____.
- 4. The name of the rover NASA launched in 2011.
- 9. It is called this because of the iron in it's soil.
- 11. The largest _____ on mars (and in the entire Solar System) is named Olympus Mons.
- 12. Mars is the ______ planet from the sun.
Down
- 1. The name of Mar's biggest moon.
- 3. Mar's _____ is 4,220 miles.
- 5. A year on Mars is almost _____ as long as a year on Earth.
- 6. The name of Mar's smallest moon.
- 7. The largest _____ on mars (and in the entire Solar System) is named Valles Marineris.
- 8. The only planet smaller than Mars.
- 10. Mars is named after the ______ god of war.