Across
- 3. Mountains that have lava in it
- 6. Mountains under the sea
- 11. A device that measure severity of earthquakes
- 12. The outermost layer of the earth
- 13. Molten rock
- 14. A fracture or zone of fractures between two blocks of rock.
- 17. Heart driven cycles
- 18. A structural trap formed by the folding of rock strata into an arch-like shape
- 20. How land moves
Down
- 1. Molten rock
- 2. A huge wave that is the result of a earthquake
- 4. Supercontinent
- 5. Hot inner layer of the earth
- 7. A trough or fold of stratified rock in which the strata slope upwards from the axis.
- 8. Southern super continent
- 9. The results of tectonic plates colliding
- 10. Thing being pulled to the center to the earth
- 15. The second most inner layer of the earth
- 16. The old measurement of earthquakes
- 19. A type of volcano
