Across
- 4. Where two tectonic plates slide past each other horizontally
- 7. Mountain ridges along the ocean floor
- 9. Process of magma rising to the surface to creat new ocean crust
- 12. The centre of the ridge has a crack
- 13. Deep valleys in the ocean floor
- 14. The super continent
Down
- 1. Earth's deepest layer and is also the hottest.
- 2. Only layer that is liquid
- 3. This is a thin layer of solid rock surrounding the earth.
- 5. this plate boundary is where two tectonic plates colide.
- 6. this plate boundary is where two tectonic plates move apart.
- 7. Below the crust
- 8. As older rock gets pushed aside it accumulates this layer
- 10. tectonics Explains how and why continents move
- 11. Proposed the continental drift theory