Geology on Mars

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Across
  1. 2. a structure made out of the geosphere
  2. 5. all the water on a planet
  3. 9. all the gas on a planet
  4. 10. having what is needed to support life
  5. 11. planets Mercury, Venus, Earth, and Mars are
  6. 13. what the channel on Mars was made by
  7. 14. planet closets to the Sun
Down
  1. 1. the landform we studied on Mars
  2. 3. the other habitable planet
  3. 4. planet farthest from the Sun (not Pluto)
  4. 6. planet we live on
  5. 7. all the living things on a planet
  6. 8. all the rock on a planet
  7. 12. acronym to support a claim in science