Across
- 3. a feature that forms on the surface of a planet, such as a mountain, channel, or sand dune
- 8. the process of making clear how evidence supports your claim.
- 10. the mixture of gases surrounding a planet
- 11. all the liquid water and solid water on a planet
- 13. A scientist who studies geospheres of planets in our solar system
- 14. the solid part of a rocky planet.
Down
- 1. all the living things on a planet
- 2. a proposed answer to a question about the natural world.
- 4. An object, diagram, or computer program that helps us understand by making it easier to see
- 5. having the conditions necessary to support life
- 6. a long narrow groove that forms when water, lava, or other liquid flows
- 7. to notice how two or more things are alike or different
- 9. Any planet with a solid surface
- 12. an event or series of events that causes changes in the geosphere