Across
- 2. claim supported by evidence
- 5. proposed answer to a question
- 6. saying your evidence supports your claim
- 8. all water on a planet
- 9. object, diagram, or program
- 11. scientist studying spheres of planets
- 14. having conditions needed for life
- 15. set of parts creating a whole
Down
- 1. long narrow groove
- 3. notice how thing are alike
- 4. gases surrounding a planet
- 7. the solid part of a rocky planet
- 10. planets with solid surface
- 12. natural items on a planets surface
- 13. all living things on a planet