Plate Tectonics
Across
- 4. Liquid magma that reaches Earths surface
- 5. A dense sphere of solid iron and nickle
- 7. A volcano that is no longer active
- 9. The point on Earth's surface directly above an earthquakes focus
- 10. The hypothesis that the continents slowly move across Earths surface
- 11. A device that records movements caused by seismic waves
- 14. An earthquake that occurs after a larger earthquake
- 15. An opening that magma leaves a volcano
Down
- 1. A break or crack in Earths lithosphere along which the rock moves
- 2. A layer of molten iron and nickle that surrounds the Earth
- 3. The layer of hot, solid material between Earths crust and core
- 6. The layer of rock that forms Earths outer surface
- 8. A weak spot in the crust where magma has come to the surface
- 12. A type of seismic wave that moves the ground up and down or side to side
- 13. A giant wave usually caused by an earthquake