Geology On Mars

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Across
  1. 6. having the conditions necessary to support life
  2. 8. all the liquid water and solid water (ice) on a planet
  3. 10. a set of interacting parts forming a complex whole
  4. 11. the mixture of gases surrounding a planet
  5. 13. an event or series of events that causes changes in the geosphere, such as flowing water or flowing lava
  6. 14. the process of making clear how your evidence supports your claim
  7. 15. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
Down
  1. 1. to notice how two or more things are alike or different
  2. 2. a feature that forms on the surface of a planet, such as a mountain, channel, or sand dune
  3. 3. information about the natural world that is used to support or go against (refute) a claim
  4. 4. a long, narrow groove that forms where water, lava, or other liquid flows
  5. 5. a proposed answer to a question about the natural world
  6. 7. all the living things on a planet
  7. 9. any planet with a solid surface, such as Earth or Mars
  8. 12. the solid part of a rocky planet