Plate Tectonics-Crick

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Across
  1. 3. Earth's continents were all once part of supercontinent called-
  2. 5. When 2 plates slide past each other
  3. 9. occurs when material deep in Earth’s mantle rises and melts, forming magma. This area does NOT move
  4. 10. occurs at ALL plate boundaries
  5. 11. are created by subduction
  6. 12. long, narrow depressions on the seafloor that form at the boundary of tectonic plates where one plate is pushed, or subducts, beneath another
  7. 15. these are responsible for the movement of tectonic plates
  8. 17. a lowland region that forms where Earth's tectonic plates move apart, or rift
  9. 19. a vast area of Earth's surface below ocean water
  10. 20. form at hot spots and subduction zones, but erupt less often than other volcanoes.
  11. 21. traces of organisms found in rocks
Down
  1. 1. When 2 plates move away from each other
  2. 2. 2 plates where molten material within the earth pushes its way up, causing the plates to move away from each other
  3. 4. a chain of mountians by a vast underwater volcanic range formed at divergent tectonic plate boundaries
  4. 6. forms when 2 continental plates come together.
  5. 7. When 2 plates move toward each other
  6. 8. the thin and more dense crust that will subduct
  7. 13. the thicker and less dense crust
  8. 14. a break in the earth's crust, occurs at a transform boundary
  9. 16. the law of superposition states that the__ is found under the youngest layer
  10. 18. happens when continental and oceanic plates meet