Chapter 4 Vocab

2. Transfer of heat through movement of heated material
3. Boundary formed where two lithospheric plates slide past each other
4. Movement in a fluid caused by uneven heating
5. Makes up the continental landmasses
6. An undersea mountain range with a steep,narrow valley running down its center
8. Boundary formed by the collision of two lithospheric plates
12. Material on the ocean floor
13. Theory that the lithosphere is made up of plates that float on the asthenosphere and that the plates possibly are moved by convection currents
15. Means "all seas"
18. Movement of the ocean floor away from either side of a mid-ocean ridge
19. piece of land with a geologic history distinct from that of the surrounding land.

1. Hypothesis that states that the continents had moved.
3. theory that continents are a patchwork of pieces of land that have individual geologic histories
7. region where one lithospheric plate moves under another
9. Boundary formed by two lithospheric plates
10. Layer that is like putty
11. Forms the thin outer shell of the earth
14. Chain of volcanic islands formed along an ocean trench
16. Steep, narrow valley formed as lithospheric plates separate
17. Means "all lands"