Earth Quakes

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Across
  1. 1. large waves
  2. 4. where plates slide past each other
  3. 7. man credited with Theory of Plate Tectonics
  4. 8. thickest type of crus
  5. 9. boundary where plates pull apart
  6. 11. Wegener man credited with Theor of Continental Drift
  7. 12. forms at an ocean-ocean divergent boundary
  8. 13. this forms above a subduction zone where plates converge
  9. 16. name of super continent that existed 250 million years ago
  10. 17. forms at a continental-continental divergent boundary
  11. 19. ___ plate
Down
  1. 2. forms at continental-continental convergent boundary
  2. 3. zone where one plate sinks below another
  3. 5. tectonic______
  4. 6. when the ground shakes because of movement of plate boundaries
  5. 10. forms at an oceanic-continental convergent boundary
  6. 14. it is not lava till it reaches the surface
  7. 15. crust that always sinks at a convergent boundary
  8. 18. shoots out lava
  9. 20. earths layer that is broken into large moving pieces