Earth's Layers

Plate Tectonics

The Theory of Plate Tectonics states that Earth’s Crust is not Single Solid Layer. Instead, It is Broken up into Giant Plates, and These Plates Move ! The Plates Move Due To The Convection Current from the Molten Rock below them.

The Crust

The Crust is composed of igneous, metamorphic, and sedimentary rocks. The Crust makes up less than 1% of the Earth’s Volume.

The Mantle

The Mostly Solid Mantle is composed of silicate rock. The Mantle makes about 84% of the Earth’s Volume.

The Outer Core

This is a Fluid Layer around Earth’s Inner Core. It is composed of iron and nickel.

The Inner Core

It is believed that the solid Inner Core is composed of an Iron-Nickel Alloy. The Temperature of Earth’s Inner Core is Expected to be Above 9,000 degrees Fahrenheit.