Plate Tectonics

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Across
  1. 2. stress that occurs when the forces act to squeeze an object
  2. 3. Process of which new oceanic crust is formed
  3. 7. created by transform boundaries.
  4. 11. tectonic plates which include oceanic and continental
  5. 12. properties that involve a reaction to various properties
  6. 14. made of iron and nickel
  7. 15. when the denser oceanic plate subducts under the continental plate
  8. 17. makes up 1 percent of earth
  9. 18. lower part of the mantle
  10. 19. only liquid layer in the earth
Down
  1. 1. theory developed by Alfred Wegner
  2. 4. the theory explains how large pieces of the earth's crust move and change shapes
  3. 5. plates sliding past each other
  4. 6. Moving apart
  5. 8. Colliding
  6. 9. plastic like layer of earth
  7. 10. makes up 66 percent of earth
  8. 13. center of earth
  9. 16. one of the two types of layers in the earth