Unit 7: Plate Tectonics

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Across
  1. 5. outer chemical layer of the Earth
  2. 7. when a denser tectonic plate moves underneath a less-dense tectonic plate
  3. 8. landform created from two continental plates colliding
  4. 9. chemical layers of Earth are separated due to differences in this property
  5. 10. layer of Earth that is most dense
  6. 11. thickest chemical layer of the Earth
  7. 16. type of tectonic boundary that forms when two plates slide past each other
  8. 18. crust is destroyed at this location as it subducts
  9. 19. huge pieces of lithosphere that move
  10. 23. chemical layer of the Earth made of iron and nickel
  11. 27. method of heat transfer through space, no direct contact
  12. 29. layer of Earth that is responsible for the Earth's magnetic field
  13. 31. landform that is present when continental crust diverges or moves apart
  14. 32. german scientist proposing continental drift
  15. 33. transform fault in California
  16. 34. proposed Theory of Seafloor Spreading
  17. 35. type of crust that is made mostly of basalt, and is more dense
Down
  1. 1. freshwater reptile fossil that provides evidence for Continental Drift
  2. 2. type of tectonic boundary that forms with two plates moving apart
  3. 3. is the solid outer layer that is broken into plates that move
  4. 4. landform created when two oceanic plates collide
  5. 5. responsible for the movement of tectonic plates, method of heat transfer through fluids
  6. 6. landform found at divergent boundary in the Atlantic Ocean
  7. 12. we refer to polarity as this when the magnetic north pole matches the geographic north pole
  8. 13. used data from SONAR to create a map of the floor of the Atlantic Ocean
  9. 14. Volcanic island arc formed from the collision of two oceanic plates
  10. 15. physical layer of the Earth that flows slowly, allowing the plates to move
  11. 17. method of heat transfer through direct contact
  12. 20. grooves formed in bedrock from moving glacial ice
  13. 21. name of Wegener's supercontinent
  14. 22. lower part of the mantle
  15. 24. type of tectonic boundary that forms with two plates moving together
  16. 25. we refer to polarity as this when the magnetic north pole matches the geographic south pole
  17. 26. mountains formed from collision of India and Eurasia
  18. 28. type of crust that is made mostly of granite, and is less dense
  19. 30. mountain range formed from a collision of oceanic and continental plates