Across
- 3. a wave in the earth produced by an earthquake
- 6. what happens when hot molten rock spurts out of a volcano
- 7. a region when two tectonic plates move away from each other
- 8. the places where tectonic plates crash together
- 9. the formation of new ocean floor
- 12. the part of the earth between the crust and the core
- 13. the amount of energy an earthquake lets out
- 14. a seismic wave that travels along or parallel to the earth's surface
- 16. the crust and upper mantle of the earth
- 18. a landmass that existed before the continents were separated
- 19. made up of different materials
Down
- 1. the outer most part of the earth's core
- 2. a zone of seismic and volcanic activity
- 4. a region where two tectonic plates collide
- 5. an earthquake wave that travels through the interior of the earth
- 10. big slabs of rock under the surface of the earth that can cause earthquakes
- 11. when tectonic plates shift under the earth's surface
- 13. the hot molten rock that erupts out of a volcano
- 15. a small volcano built of ash and cinder
- 17. the innermost part of the earth's core