Across
- 2. rigid rock slabs
- 4. forms where two plates separate
- 6. move away from the ridge with with force
- 7. circulation of material caused by difference in temperature and desity
- 10. denser plate sinks below the more buoyant plate
- 12. magnetized objects orient themselves to point north
- 14. all the continents were once together
- 15. mountain ranges in the ocean
- 16. suggested that continents are constinly moving
Down
- 1. form where two plates collide
- 3. the process of new oceanic crust forms along a mid-ocean ridges
- 5. magnetized objects orient themselves to point south
- 8. forms where two plates slide past
- 9. reversing direction
- 11. a slab sinks it pulls on the rest of the plate with force
- 13. outermost rock