Here's a breakdown of the Earth's layers:
* Crust: This is the solid, rocky outer layer we live on. It's thin compared to other layers and is divided into the oceanic crust (found under the oceans) and the continental crust (found under the continents).
* Mantle: The thickest layer of the Earth, made up of hot, dense rock. It's mostly solid, but behaves like a very viscous fluid over long periods.
* Outer Core: A liquid layer composed mostly of iron and nickel.
* Inner Core: A solid ball of mostly iron and nickel, incredibly hot and under immense pressure.
