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