Across
- 3. thick atmosphere of carbon dioxide
- 7. drops sediments from erosion
- 9. includes water over earth's surface
- 11. gas giant made of helium and hydrogen
- 14. rotates on its side
- 16. celestial body moves into shadow of another
- 17. occupied by living organisms
- 19. compaction
- 22. plates move towards each other
- 24. has ring system made of ice and rock
Down
- 1. spiral galaxy
- 2. model that places sun in the center
- 4. movement of crust plate into mantle
- 5. mixture of gases surrounding earth
- 6. solid outer part of earth
- 8. no atmosphere to trap heat
- 10. moves material from one place to another
- 12. earth's structure and processes
- 13. airplanes fly in this sphere
- 15. dark cold ice giant whipped by winds
- 18. heat/pressure
- 20. cooled magma/lava
- 21. scientific study of everything in space
- 23. orbital period is 687 earth days