Across
- 4. study of the earth
- 5. most abundant gas in Earth's atmosphere
- 7. earth changed slowly over time; Hutton
- 9. earth's only natural satellite
- 12. solid, inner dense part of Earth
- 14. this is how geologists study Earth's inside
- 16. part of earth with liquid; 1,400 mi
- 18. "The present is key to the past."
- 23. this deflects solar wind
- 25. God promises seedtime and harvest in _.
- 26. raw material from our environment
- 29. the upper mantle and crust
- 31. changed the Earth dramatically; cataclysm
- 32. old earth theory; Earth is 4.5 billion yrs
Down
- 1. came up with uniformitarianism
- 2. we depend on this process for food/oxygen
- 3. this light is needed for photosynthesis
- 6. a resource that is nonliving; soil
- 8. view of earth being about 6000 yrs
- 10. thinnest part of earth
- 11. Earth's solid outer layer
- 13. boundary between the crust/mantle
- 15. force that keeps us on Earth
- 17. gives Earth seasons; 23 1/2 deg.
- 19. how fast light travels in a yr
- 20. space rocks blocked by Earth's atmosphere
- 21. galaxy in which Earth is located
- 22. thickest layer of Earth; 84%
- 24. God formed the earth to be __. (Isaiah 45:18)
- 27. resources easily replenished
- 28. comes from a living thing; fish
- 30. he came up with plate tectonics