Across
- 3. liquid layer of the Earth's core
- 5. outermost, rigid layer of the Earth
- 7. layer between the crust and the core
- 11. new lithosphere is created here
- 12. outermost layer of the Earth
- 13. theory that continents drift apart
- 15. solid, dense center of the Earth
- 17. piece of the lithosphere that moves on the asthenosphere
- 19. the bending of rock layers
Down
- 1. soft layer of the mantle
- 2. a pulling force
- 4. a squeezing force
- 6. boundary between two colliding plates
- 7. A chain of mountains on the ocean floor where the sea floor is spreading.
- 8. a region where a an oceanic plate sinks down into the athenosphere
- 9. a break in the Earth's crust
- 10. The pathway along which energy travels through a fluid
- 14. boundary between two plates moving away from each other
- 16. boundary between two plates that are sliding past each other
- 18. A supercontinent that existed about 200 million years ago but broke apart into several continents.