Continental Drift:How the Earth Moves
The thin crust of the Earth,like the shell of an egg,is all that protects the surface and continents from the hot molten rock inside.Deep inside the Earth at the center is the core.Between the surface of the Earth and the core is the mantle.It is the Earth's surface that move on top of this mantle.These eight major tectonic plates are 100-200 km. thick and create the Earth's crust.
The movement of continents drift.Understanding how and why this is happening has important consequences for everyday lives.