Geology on Mars

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