Chapter 6 Vocab

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Across
  1. 3. the cold and rigid outermost layer
  2. 8. a state in which magnetized objects, such as compass needles, will orient themselves to point north.
  3. 10. the circulation of material caused by differences in temperature and density
  4. 11. forms where two plates collide,
  5. 12. the occurrence that the magnetic field reverses direction
  6. 14. the process in which the denser plate sinks below the more buoyant plate
  7. 15. the process by which new oceanic crust forms along a mid-ocean ridge and older oceanic crust moves away from the ridge
  8. 16. the suggestion that the continents are constantly moving.
Down
  1. 1. forms where two plates slide past each other
  2. 2. a state in which magnetized objects would reverse direction and orient themselves to point south
  3. 4. as a slab sinks, it pulls the rest of the plate with a force
  4. 5. earth's surface is made of rigid slabs of rock, or plates, that move with respect to each other.
  5. 6. the mountain ranges in the middle of oceans seafloor
  6. 7. forms where two plates separate
  7. 9. the mother continent; The time before seas separated us so.
  8. 13. this is the rising mantle material at mid-ocean ridges creates the potential for plates to move away from the ridge with a force