Across
- 2. planet humans live on
- 5. a volcano 3 times bigger than Mount Everest
- 7. the smallest mars moon
- 8. a living life form that lives on earth
- 10. the thing that protects us from space
- 13. red planet
- 14. there are 7 of these big land pieces on earth
- 15. fourth planet from the sun
Down
- 1. the largest mars moon
- 3. someone who creates stuff for the future
- 4. a canyon as big as Europe on mars
- 6. a famous canyon on earth
- 9. the colonizing of planets
- 11. water floating up in the air in the atmosphere
- 12. substance we drink to survive