Across
- 7. Hot semifluid material below the Earth's crust from which lava is formed
- 8. The point on the Earth's surface above the focus
- 10. The uppermost mantle and overlying the crust. It is a solid rigid layer
- 11. A crack in the Earth's crust
- 12. When the denser plate dives under the lighter plate
- 13. A current in the mantle where cooler, denser crust sinks and warmer, less dense material rises
- 14. When 2 plates move toward each other
- 15. Crust that is thinner and denser than continental crust
- 17. spreading When magma rises to the surface at mid-ocean ridges to form new oceanic crust
- 20. A liquid layer in the earth that is rich in iron
Down
- 1. Crust that is thicker and lighter than oceanic crust
- 2. When 2 plates spread apart
- 3. Mountain ridges along the ocean floor
- 4. When 2 plates are moving horizontally in opposite directions
- 5. Located in the upper mantle and is composed of hot, rocky material that is malleable
- 6. A solid layer in the earth that is rich in iron
- 9. The location where the earthquake happens
- 16. An instrument used to measure how large/long and earthquake is
- 18. A destructive event that results from geological processes
- 19. Hot regions of the Earth's mantle where magma rises by breaking through weak parts of the lithosphere