Across
- 3. having the conditions necessary to support life
- 5. the solid part of a rocky planet
- 6. a feature that forms on the surface of a planet, such as a mountain, channel, or sand dune
- 7. all the living things on a planet
- 11. information about the natural world that is used to support or go against a claim
- 12. the mixture of gases surrounding a planet
- 13. to notice how two or more things are alike or different
Down
- 1. a scientist who studies the geospheres of planets in our solar system
- 2. a proposed answer to a question about the natural world
- 4. an object, diagram, or computer program that helps us understand something
- 8. a set of interacting parts forming a complex whole
- 9. all the liquid water and solid water (ice) on a planet
- 10. a long narrow groove that forms where water, lava, or other liquids flow