Across
- 8. the plane along which the rock or crustal material has fractured
- 9. outer layer of earth
- 12. a fraction between two blocks of rock
- 16. this happens when two plates move away from each other
- 17. when plates slide past each other
- 18. The rock material which lies above the fault plane
- 19. the center of the earth
- 20. Appears when continental plates collide
- 22. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
Down
- 1. this happens when two plated move towards each other
- 2. a large mass of land
- 3. the mostly solid bulk of earths interior
- 4. a mountain or hill that erupts with lava
- 5. molten rock in earths crust
- 6. created by shearing along transform boundaries
- 7. a person who studies rocks and earths landforms
- 10. A process moving around rocks and minerals below earths surface
- 11. The rock material which lies below the fault plane.
- 13. a long narrow ditch
- 14. Alfred Wegner came up with this theory
- 15. the bottom of the sea
- 21. the only habitable planet