Across
- 2. 687 Earth days is the same as 1 _______ on Mars
- 5. Mars is about half the size of which planet?
- 7. Astronauts have to (de)compress in this before and after a spacewalk
- 8. Scientists believe this was once on Mars
- 9. Mars is the ______ planet from the Sun
- 10. The larger of Mars' moons
- 12. Rovers on Mars are given directions through computer ________
- 14. NASA has sent 5 of these to Mars
- 16. Mars and Earth are considered to be this kind of planet
- 18. Mars is known as the _________ planet
- 19. Olympus Mons is the highest one in our solar system
Down
- 1. The smaller of Mars' moons
- 3. Astronauts have to do this for 2 hours daily
- 4. These can grow on sweaty or dirty clothing
- 6. The number of moons Mars has
- 11. There is very little of this gas in Mars' atmosphere
- 13. Mars is known for these types of storms
- 15. Mars' soils contain this metal
- 17. This is what keeps astronauts safe on a spacewalk