Across
- 3. system of frozen water
- 6. breakdown of rock
- 8. the drying up of vegetation
- 9. system of gas surrounding Earth
- 13. system of interacting life
- 16. zone where one plate sinks under another
- 17. describes the "why" something happens in nature
- 20. dating rocks for a guess at an age (is a scientific law)
- 22. is the convecting fluid mantle
- 24. describes the "what" in nature
- 26. broken into plates; is the crust & upper, solid mantle
- 27. movement of rock
- 30. rock made of layers of compacted sediment
- 31. is a testable educated guess
Down
- 1. plates that slide past each other
- 2. is cutting down trees for human use
- 3. is the cycle of hot fluids rise & cold fluids fall
- 4. system of water on, above, & below Earth
- 5. plates that move into each other
- 7. settlement of rock
- 10. dating rocks for exact age
- 11. most outer layer of Earth
- 12. plates that move apart from each other
- 14. a crack in Earth's crust
- 15. system of natural, non-living material
- 18. the growth of population & cities
- 19. rock that's been changed under heat & pressure
- 21. large amount of pressure on sediment
- 23. most inner layer of Earth
- 25. how hard rock becomes molten
- 28. molten rock that is cooled & solidified becomes ____ rock
- 29. lava & magma are considered ____ rock because they're liquid