The Four Layers of the Earth

Have you ever wondered what is deep inside of the Earth? As a child, did you ever think you could dig a hole all the way to the other side of the planet? Well, don't wonder any more because you will never be able to do that. The Earth is way too big and thick and you probably would not even get through the first layer. Watch the presentation below to get an idea of the four layers of the Earth.


 

The first layer of the Earth is called the Crust and it is the smallest part, only about 5 to 6 miles thick. The Earth's crust is the most common place for earthquakes to occur.
The next layer is called the Mantle. The Mantle is the thickest layer of the inside of the earth, making up almost 75 percent of the volume of the Earth! The Mantle is like an underground ocean of liquid rock. In fact, lava that comes from volcanoes comes from the Mantle.
The next layer is called the Outer Core. The Outer Core is also a hot liquid and it surrounds the final part, the Inner Core. The Outer Core is responsible for protecting the Earth's magnetic field.
The final part of the Earth's layers is the Inner Core, which is a solid ball, made of primarily nickel and iron. Scientists believe that the Inner Core's temperature is about 5000 degrees Celsius! That is pretty hot!

"Earth poster" by Kelvinsong - Own work. Licensed under CC BY-SA 3.0 via Commons - https://commons.wikimedia.org/wiki/File:Earth_poster.svg#/media/File:Earth_poster.svg