Plate Tectonics

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Across
  1. 4. dense plate us pulled into mantle under the less dense plate
  2. 5. outer layer of the Earth
  3. 7. supercontinent before our separate continents
  4. 9. earth's crust located under the ocean
  5. 11. when two plates come together
  6. 12. bending of rock layers from stress
Down
  1. 1. a break in the earth's crust that moves
  2. 2. another name for the outer layer of earth
  3. 3. Theory that continents move because of centrifical forces
  4. 5. stress that occurs when forces act to squeeze an object
  5. 6. two plates pull apart
  6. 8. trace or remains of an organism that lived long ago; used as evidence for Wegener's theory
  7. 10. layer of the earth between the crust and the core