Plate Tectonics Project

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Across
  1. 2. A transfer of heat is occurring in Earth's mantle
  2. 9. Earth’s magnetic field results from movement of the material in the
  3. 10. The theory of seafloor spreading says that new ocean crust is formed at ocean ridges and destroyed at
  4. 12. Which two land forms are caused by convergent plate boundaries?
  5. 13. the name of an ancient fossil found on different continents
  6. 14. How are scientists able to study Earth’s interior?
  7. 15. Lavapillows and magnetic striping patterns provide evidence for
  8. 16. The old oceanic crust is denser than new oceanic crust because it is
  9. 17. A place where two plates slip past each other, moving in opposite directions, is known as a
  10. 20. On the ocean floor, rocks are the youngest near a
Down
  1. 1. Most geologists think that the movement of Earth’s plates is caused by
  2. 3. Subduction zones are found at which of the plate boundaries
  3. 4. The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is known as
  4. 5. Which type of evidence was NOT used by Alfred Wegener to support his continental drift hypothesis?
  5. 6. The place where two tectonic plates move away from each other is called a
  6. 7. the name of the German scientist that discovered the theory of continental drift
  7. 8. Tectonic plate movements are generally measured in _?_ per year
  8. 11. A place where two tectonic plates move toward each other is called a
  9. 18. In sea-floor spreading, molten material rises from the mantle and erupts
  10. 19. the name of the supercontinent that existed millions of years ago