What are the major layers of the earth?
There are four major layers.
- Very thin
The part you live on top of
Separated into plates (when they knock against each other Earthquakes happen.)
The largest layer (1800 miles thick)
Flows because of very high temperatures
The movement of the plates is caused by this flowing
The Outer Core:
Composed of the metals Nickel and Iron
Completely liquid because of extremely high temperatures (4000-9000 degrees Fahrenheit)
The Inner Core:
- Temperatures and pressures are so high that the metals are squeezed together and are not able to move about like a liquid, but are forced to vibrate in place as a solid.
Note that some of these layers can be broken down and described further.