Be Smart
Why Does The Earth Have Layers?
How is the Earth like an onion? In this video from PBS Digital Studios, viewers first learn the different layers of Earth and their properties. In addition, they hear how these layers came about, starting with the Big Bang theory and the...
TED-Ed
The Pangaea Pop-up
The amazing animation for a video on continental drift is comprised of the pages of a sophisticated pop-up book, The Moving Earth. As the pages turn, your earth scientists discover the tectonic plates of the lithosphere and the...
Khan Academy
Structure of the Earth
Salman Khan delves into the layers of the Earth. He provides names and general numbers about depths and composition.