Chapter 8

3. Made of layers of rocks that are folded.
4. The downward vertical movement of the Earth's surface.
5. Squeezing stress.
9. When large regions rise vertically with very little deformation.
12. Areas of subsidence and regions with low elevation.
13. An area of many fractured pieces of crust along a large fault.
15. Stress that pulls something apart.
16. A curved line of volcanoes that forms parallel to a plate boundary.
18. _______ move only 1-9 cm per year, creating tall mountains.
20. When divergent boundaries occur within a continent, they can form ________, or enormous splits in Earth's crust.

1. Made from layers of cooled molten rock and ash.
2. Flat regions with high elevation.
6. An extensive area of level or rolling land.
7. Parallel forces acting in opposite directions.
8. The upward vertical motion of the Earth's surface.
10. Parallel ridges that form where blocks of crust move up or down along faults.
11. Deep, underwater troughs created by one plate subducting under another plate at a convergent plate boundary.
14. Where tectonic plates slide horizontally past each other.
17. A change in the shape of rock caused by stress.
19. The equilibrium between continental crust and the denser mantle below it.