Across
- 4. Two plates slide apart forming Rift Valleys or seafloor spreading
- 6. Scientist who suggested the theory of continental drift
- 7. Outer layer of the earth where we live
- 8. Two plates collide forming mountains
- 10. The layer of the earth that the tectonic plates float on
- 11. The large landmass known as Pangaea
- 12. Molten rock that pushes up from the mantle to become lava
Down
- 1. The place where two plates meet
- 2. Crust layer that is denser and thinner than contintal crust
- 3. Solid center of the earth made of nickel and iron
- 5. The layer of the earth that is broken up into plates
- 9. Two plates slide past each other causing earthquakes and volcanoes