Bill Nye the Science Guy (1993)

S1E2 Earth's Crust

Don't simply drift along; settle on the crust! Envision a world devoid of crust—no flaky pies, no bread, no hamburger buns, and, most importantly, no humans. Every living organism relies on the Earth's crust for survival. Let's delve into the science of our planet's surface. Through meticulous research, scientists have revealed that the Earth consists of massive layers. At its core lies a solid ball of iron, enveloped by a layer of liquid iron and minerals known as the outer core. Surrounding this is the mantle, a hot, gooey layer of nearly molten rock that flows like tar on a scorching day.