Plate Tectonics

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Across
  1. 4. plates slide past each other in opposite directions
  2. 6. Name of the giant supercontinent
  3. 9. normal faults occur when rocks are
  4. 10. The Hawaiian Islands formed over a
  5. 12. The name of the fault in Missouri
  6. 13. The process by which new ocean crust is being formed
  7. 15. Sea Floor Spreading begins at
  8. 17. Reverse faults occur when rocks are
  9. 18. Plates spread apart at what boundaries
  10. 19. Who created the theory of continental drift
Down
  1. 1. The driving force behind plate tectonics
  2. 2. Plates collide at what boundaries
  3. 3. The theory that the plates were once a large landmass that has moved to where they are now
  4. 4. old ocean floor gets destroyed in
  5. 5. A break in the Earth’s crust
  6. 7. Can form at convergent boundaries
  7. 8. Whats happening to the size of the Pacific ocean
  8. 11. What can occur from earthquakes in the ocean
  9. 14. The area around the Pacific Ocean plate known for its volcanic activity is the
  10. 16. What caused the Mississippi river to flow backwards