Plate Tectonics

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Across
  1. 2. A theory about seafloor spreading, Earth’s plates and the plates motion
  2. 3. The part of the ocean floor that lava comes out of
  3. 4. The part of the crust made of basalt
  4. 6. Part of the pattern created on the ocean floor
  5. 11. One of the items in the earth that helped prove that Pangea existed
  6. 12. The idea that continents slowly move over the Earth’s surface
  7. 16. What oceanic and continental plates create on a convergent boundary
  8. 18. Type of plate boundary that destroys things
  9. 20. The part of the crust made of granite
Down
  1. 1. What Ocean floor sinks into back to the mantle
  2. 5. A deep valley formed by plates moving away from each other
  3. 7. When subduction takes place it happens at a __________ boundary
  4. 8. The one continent that existed millions of years ago
  5. 9. The adding and widening of Earth’s oceans
  6. 10. This boundary can form a rift valley
  7. 13. What happens at a transform boundary
  8. 14. The pieces of earth’s lithosphere
  9. 15. The process of one plate sinking underneath another
  10. 17. Cracks in Earth’s crust after plates rub against each other
  11. 19. What two continental plates create on a convergent boundary