Across
- 2. Term used to describe how everything works together.
- 4. the planet being studied to see if it could become habitable
- 6. process an event or series of events that causes changes in the geosphere, such as flowing water or flowing lava
- 8. Includes all the water on a planet
- 10. All the gases surrounding a planet.
- 11. provide scientific data to support your claim.
Down
- 1. the planet with the thickest atmosphere
- 3. a feature that forms on the surface of a planet, such as a mountain, channel, or sand dune
- 5. Includes all the ecosystems of a region or planet
- 6. This includes rocks, canyons, volcanoes and the Earth's crust
- 7. a long, narrow groove that forms where water, lava, or other liquid flows
- 9. explain why your evidence supports your claim.
- 12. a statement that answers a question