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.

Earthquakes, Volcanoes, and the Formation of Mountains can all be Explained by The Theory Of Plate Tectonics.

For an Example, When Tectonic Plates Collide, one might move below the other. Temperature Rises at that Zone and Rocks will melt. This forms Magma, which collects and rises to the surface because it is lighter than the rock around it. This Creates Volcano

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.