Ag Earth Plate Tectonics.

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Across
  1. 4. Rocks closer to the middle of a mid ocean ridge are _________.
  2. 5. Heat transfer from a heated liquid or gas, moves the goopy mantle.
  3. 8. Scientist who came up with Pangea and Continental drift
  4. 10. Theory that the continents somehow broke away and moved apart over millions of years.
  5. 11. Formed when two continental plates collide together.
  6. 12. Plate boundary where the plates pull apart.
  7. 14. Giant land mass the continents used to be.
  8. 15. Heat transfer from indirect contact, like a heater.
  9. 17. Scientist who discovered seafloor spreading.
  10. 18. Thinnest of Earth's layers.
Down
  1. 1. What is pushed and pulled by the heated mantle.
  2. 2. Where convection takes place.
  3. 3. Plate boundary where the plates come together.
  4. 6. Heat transfer from direct contact.
  5. 7. What Hess discovered to help prove the Theory of Pangea.
  6. 9. One day geologists learn about Earth's interior (indirect way).
  7. 13. Plate boundary where the plates slip and slide.
  8. 16. Earth's layer that's made of nickel and iron.