Across
- 4. To notice how two or more things are alike or different
- 5. The process of making clear how your evidence supports your claim
- 8. A feature that forms on the surface of a planet, such as a mountain, channel, or sand dune
- 9. The solid part of a rocky planet
- 10. An event or series of events that causes changes in the geosphere, such as flowing water or flowing lava
- 12. All the living things on a planet
- 13. An object, diagram, or computer program that helps us understand something by making it simpler or easier to see
Down
- 1. A long, narrow groove that forms where water, lava, or other liquid flows
- 2. The mixture of gases surrounding a planet
- 3. Having the conditions necessary to support life
- 4. A proposed answer to a question about the natural world
- 6. All the liquid water and solid water (ice) on a planet
- 7. A planetary __________ is a scientist who studies the geospheres of planets in our solar system
- 11. A set of interacting parts forming a complex whole