Across
- 5. A substance under the Earth's crust.
- 7. Long,narrow,or elevated area of land
- 8. Known for significant earthquake activity
- 9. Rock that the ocean crust is made of
- 12. Cracks along the Earths surface.
- 13. When two plates move away from each other.
Down
- 1. Tectonic plates sliding past each other horizontally.
- 2. A mountain that erupts lava.
- 3. The sudden shaking of Earth.
- 4. When two plates collide and one slides under the other
- 6. A large wave coming from a Earthquake.
- 10. Sinking ocean plate
- 11. The force applied to the Earth.