Across
- 2. occurs and the magnetic field reverses direction.
- 5. away from the ridge.
- 6. forms where two plates slide past eachother
- 9. drift suggested that continents are in constant motion on the surface of the earth
- 11. as a slab sinks it pulls on the rest of the plate with force
- 12. states that Earth's surface is made of rigid slabs of rock, or plates, that move with respect to eachother
- 14. the denser plate sinks below the more buoyant place in a process
- 15. all the continents were once part of a super-continent
Down
- 1. a state in which magnetized objects, such as compass needles will orient themselves to point north.
- 3. forms where two plates collide
- 4. forms where two plates separate
- 5. ridges the mountain ranges in the middle of the oceans
- 7. the cold and rigid outermost rock layer
- 8. the process by which new oceanic crust forms along the mid-ocean ridge and older oceanic crust
- 10. a state in which magnetized objects would reverse direction and orient themselves to point south
- 13. the circulation of material caused by differences in temperature and density.