Plate Tetonics

2. the part of Earth's crust that makes up the continents and larger islands
4. the boundary between two plates that are spreading apart at a mid-ocean ridge or at a continental rift zone
6. the whole crust and the upper most portion of the mantle
9. states that Earth's lithosphere is divided into plates that can move in any direction on the plastic part of the upper mantle
10. the long, steep, and narrow depression produced by the bending down of subducting plates, which warps the crust
12. a boundary at which plates slide by each other
15. mountains that are presently rising because they are at the location of converging plates or at the site of a hot spot
17. another word for "plate"
18. the process in which one of the plates at a convergent boundary sinks under the other plate and eventually melts into the asthenosphere
19. a super continent that existed about 300 million years ago

1. major regions of volcanic activity that are usually in the interior of plate away from plate boundaries
2. the outermost portion of Earth's solid lithosphere
3. the boundary between two colliding plates
5. section of the lithosphere that moves around Earth's solid surface
7. the plastic, partly solid, partly liquid layer of Earth's mantle just below the lithosphere that allows plate movement
8. the interface between Earth's crust and mantle
11. a transform plate boundary that separates the north American and Pacific Plates
13. a mountain range at the bottom of the ocean
14. the portion of Earth's crust that is usually below the oceans and not associated with continental areas
16. a curved series of volcanoes and volcanic islands that stretch hundred of miles