Vocab

2. the cold and rigid outermost rock layer is called the lithosphere
7. a state in which magnetized objects would reverse direction and orient themselves to point south
8. The constant motion of the continents
9. the circulation of material caused by differences in temperature and density
11. rising mantle material at mid ocean ridges creates the potential for plates to move away from the ridge with a force
13. the denser plate sinks below the more buoyant plate in a process
15. occurs and the magnetic field reverses direction
16. a state in which magnetic field reverses direction

1. form where two plates collide
3. forms where two plates separate
4. The last super continent
5. forms where two plates slide past each other
6. which new oceanic crust forms alongn a midocean ridge and older oceanic crust moves away from the ridge
10. The mountain ranges in the middle of the oceans
12. a slab sinks, it pulls on the rest of the plate with a force
14. states that earths surfaceis made of rigid slabs of rocks or plates that move with respect to each other