Geology on Mars

3. having the conditions necessary to support life
7. all the living things on a planet
10. _________ process: an event or series of events that cause changes in the geosphere, such as flowing water or flowing lava
11. a set of interacting parts forming a complex whole
12. all the liquid water and solid water (ice) on a planet
13. the process of making clear how your evidence supports your claim
15. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
16. a proposed answer to a question about the natural world
17. information about the natural world that is used to support or go against (refute) a claim

1. a long, narrow groove that forms where water, lava, or other liquid flows
2. _________ geologist: a scientist who studies the geosphere of planets in our solar system
4. a feature that forms on the surface of a planet, such as a mountain, channel, or sand dune
5. the solid part of a rocky planet
6. the mixture of gases surrounding a planet
8. _________ planet: any planet with a solid surface, such as Earth or Mars
9. _________ argument: a claim supported by evidence
14. to notice how two or more things are alike or different