Plate Tectonics

3. A fault in which the hanging wall moves down relative to the footwall.
8. The outermost, ridged layer of the Earth that consists of the crust and the ridged upper part of the mantle.
10. The layer of the Earth between the crust and the core.
12. The process by which new oceanic lithosphere is created at mid-ocean ridges as older material is pulled away from the ridge
14. "Middle Sphere" the strong, lower part of the mantle between the asthenosphere and the outer core.
15. The region where an oceanic plate sinks down into the asthenosphere at a convergent boundary.
17. A fault in which the hanging wall moves up relative to the footwall.
18. The amount of force per unit area that is put on a given material
19. The liquid layer of the Earth's core that lies beneath the mantle and surrounds the inner core.
20. The bending of rock layers due to stress in the Earth's crust.

1. The thin, outermost layer of the Earth, or the uppermost part of the Lithosphere.
2. The theory that continents can drift apart from one another and have done so in the past.
4. The soft layer of the mantle on which pieces of the lithosphere move.
5. The central spherical part of the Earth below the mantle.
6. A fault in which the two fault blocks move past each other horizontally.
7. The solid, dense center of the Earth.
9. A break in the Earth's crust along which two blocks of the crust slide relative to one another.
11. The type of stress that occurs when forces act to stretch an object.
13. A piece of the lithosphere that moves around on top of the asthenosphere.
16. The type of stress that occurs when an object is squeezed.