Across
- 5. surface along which rocks break and slide past each other
- 6. boundary between 2 tectonic plates sliding past each other
- 7. waves Vibrations caused by an earthquake
- 10. Sinking of regions of Earths crust to lower elevations
- 12. Rock that are _____take up more space
- 15. stress that occurs when forces act to stretch an object
- 16. Laurasia is the ______ piece of Pangea
- 18. System of satelites
- 19. land mass which formed 245 million years ago
- 20. The _____core is the liquid layer of Earth
Down
- 1. Mountains that form when magma rises to the earths surface and erupts
- 2. when the hanging wall moves up it is a _____fault
- 3. Mountains that form when rock layers are squeezed together
- 4. Upward arching fold
- 8. Plastic layer of mantle
- 9. crust springs back to previous elevation
- 11. Outer most layer of Earth
- 13. a set of deep cracks between tectonic plates
- 14. the bending of rock layers
- 17. Rising of regions of Earths crust to higher elevations