Across
- 1. floats up
- 5. a seismic wave that moves through the interior of the earth
- 7. a force that acts on a rock to change shape or volume
- 8. a boundary that goes apart from each other
- 12. is a mechanical wave
- 14. squeezes rock until it folds or break
- 16. a segment of the Earth's crust that moves relative to other segments
- 17. when divergent boundaries occur within a continent
- 20. sudden release of energy in earths crust
- 21. a seismic surface wave in which particles move with a side-to-side motion
- 22. when two landmasses are being compressed together
- 26. change in rock that is permanent
- 28. pulls on the crust stretching rock
- 29. vertical fractures that move horizontally
- 30. a linear oceanic feature
Down
- 2. a boundary that slides against each other
- 3. pushes a mass of rock in two opposite directions
- 4. curved line that forms parallel to plate boundaries
- 6. one plate goes under another during collision
- 9. an undulating wave that travels over the surface of a solid
- 10. the point on the earth's surface vertically above the focus of an earthquake
- 11. tension that causes oceanic crust to spread
- 13. a boundary that crashes into each other
- 15. collision between two continental plates
- 18. an elastic wave in the earth produced by an earthquake
- 19. a natural break or crack in the rocks that makes up earths crust
- 23. all of one's energy
- 24. a change in the shape of a rock caused by stress
- 25. a change in a rock that is not permanent
- 27. upper wall slips downward