Plate Tectonics Review Crossword Puzzle

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Across
  1. 4. boundary where 2 plates move apart
  2. 5. he proposed the theory of seafloor spreading
  3. 6. hard rigid layer of the Earth also known as the plates
  4. 8. earth crust and lithosphere are broken into these tectonic
  5. 14. these types of currents are the driving force behind plate tectonics
  6. 16. The Theory of Continental _________
  7. 17. layer below the lithosphere that is more "plastic-like"
  8. 18. this is the outer layer of the Earth that can be oceanic or continental
Down
  1. 1. form where 2 continental plates collide
  2. 2. boundary that causes major earthquakes
  3. 3. proposed Continental Drift Theory
  4. 7. the continents had this type of fit when they were together
  5. 9. type of zone where one plate sinks under another
  6. 10. name for the supercontinent made of all earth
  7. 11. place where magma rises and cools to form new seafloor
  8. 12. boundary where 2 plates move together
  9. 13. type of valley that forms when 2 continental plates divide
  10. 15. this field reverses from time to time and is captured in the rocks in the new seafloor