Across
- 2. shaking and movement due to tectonic plate movement
- 3. indicates the size of an earthquake
- 4. pulls on earth's crust
- 12. big wave produced by earthquakes
- 14. sleeping or inactive volcanoes
- 15. squeezing rock together
- 16. a break in Earth's crust
- 18. - under water mountains
- 19. plates slip past each other
Down
- 1. plates moving together
- 5. dead volcanoes that pose little threat
- 6. structure that forms in Earth's crust due to rising magma
- 7. area where lava erupts at the surface
- 8. sinking of the ocean floor into the mantle
- 9. force that changes rocks shape or volume
- 10. magma after it reaches the surface
- 11. plates pulling apart
- 13. rock is being pushed in two opposite directions
- 17. molten rock under the surface of Earth