Across
- 2. consistent motions on Earth
- 3. reversal reverses directions
- 9. two plates collide
- 11. boundary forms when two plates slide past each other
- 12. a slab sink pulls on a plate causing it
- 14. reverse directions and point themselves south
- 15. forms when two plates separate
- 16. denser plate sinking below the buoyant
Down
- 1. mountains in the ocean
- 4. new oceanic moves from the ridge
- 5. changes magnetic objects to point north
- 6. biggest continent that was around
- 7. cold rigid outermost rock layer
- 8. circulation of material causing different temperatures
- 10. rising mantle material
- 13. made of rigid slabs that move with respect of each other