Across
- 4. the upper part of the mantle below the lithosphere
- 6. an instrument used to detect and record earthquakes
- 10. the process of an oceanic plate colliding with and descending underneath a continental plate
- 12. a deep valley that forms where plates move apart
- 14. beneath the mantle; the layer of Earth in the center
- 15. forms when molten rock is pushed to the surface and builds up
- 16. the point on Earth's surface directly above the focus of an earthquake
- 17. the thin outer layer of Earth
- 19. the process of being broken down into smaller pieces
Down
- 1. a plate boundary where the plates move together
- 2. large ocean wave created by undersea earthquakes or volcanic eruptions
- 3. the dropping or settling of eroded material
- 5. the removal and transportation of weathered material
- 7. the snap and slide of rocks as energy is released in Earth's crust
- 8. the very thick layer of Earth beneath the crust
- 9. a plate boundary where the plates are moving apart
- 11. the crust and the upper solid part of the mantle
- 13. the point inside Earth where an earthquake begins
- 18. a break in Earth's crust where rocks can slide past each other