Chapter 6 Vocab

1. where two plates slide apart
3. continents are in constant movement
4. new oceanic crust forms along mid-ocean ridge and older oceanic crust moves away from the ridge
9. Earth's surface is made of ridge slabs or rock, or plates, that move with respect to each other
10. a state in which magnetized objects would reverse direction and point south
12. where two plates separate
13. rising mantle material at mid-ocean rides creates the potential for plates to move away from the ridge
14. the cold and ridged outermost rocks layer
15. where two plase colide

2. mountains in the middle of the oceans
5. circulation of material caused by differences in and density
6. when a denser plate sinks below the more buoyant plate
7. a state in which magnetic field reverse directions, such as compasses, will orient themselves north
8. as a slab sinks, it pulls on the rest of the plate
11. the name of the supercontinent from the theory that all the contents were all once together