Geology on Mars

12345678910111213
Across
  1. 3. a long, narrow groove that forms where water, lava, or other liquid flows
  2. 4. any planet with a solid surface, such as Earth or Mars
  3. 6. having the conditions necessary to support life
  4. 9. to notice how two or more things are alike or different
  5. 10. all the liquid water and solid water (ice) on a planet
  6. 12. an event or series of events that causes changes in the geosphere, such as flowing water or flowing lava
  7. 13. all living things on a planet
Down
  1. 1. a feature that forms on the surface of a planet, such as a mountain, channel, or sand dune
  2. 2. information about the natural world that is used to support or go against (refute) a claim
  3. 5. a scientist who studies the geospheres of planets in our solar system
  4. 7. the mixture of gases surrounding a planet
  5. 8. a claim supported by evidence
  6. 11. a set of interacting parts forming a complex whole
  7. 12. the solid part of a rocky planet