Tectonics Plate's

2. Piece of lithosphere that had a unique geologic history & may be part of a larger piece of lithosphere, such as a continents.
3. The bending, tilting & breaking of Earth's crust; the change in shape or volume of rock in response to stress
5. Process by which a continent breaks apart.
11. Hypothesis that states that the continents once formed a single landmass.
15. The act of pressing something together, reducing it's size or volume.
16. A fold which the younger layer is in the center of it.
18. A structural trap formed by the folding of rock strata into arch-like shape.
19. A break in a body of rock along which one block slides relative to another; a form of brittle strain.
20. Undersea mountain ranges through the center of which run steep, narrow valleys.

1. Supercontinent that formed 300 million years ago & began to break apart 250 million years ago.
4. A series of mountains that are closely related in orientation, age, & mode of formation.
6. Describes the state of gravitational equilibrium where the Earth's crust floats on the mantle.
7. Limbs meet at the bend in the rock layers.
8. Theory that explains how large pieces of earth's surface, moves & changes shape.
9. Any change in a rock's shape or volume caused by stress.
10. The sloping sides of a fold.
12. A form of ductile strain in which rock layers bend, usually as a result of compression.
13. Single large ocean that covered earth's surface during the Pangea existed.
14. Large, natural elevation of the Earth's surface.
17. A pulling force that occurs when 2 objects pull against each through a medium.