Who am I!!

I am a big circle with four main layers. The crust, Mantle, inner core and outer core. Who am I? Yes I am the World.

My core is the inner center of me which is 5000 degrees C.

It is made out of nickel and iron. the core is very hard rock solid.It is the smallest thing in my body.

Surrounding my core is the Mantle. Hot Molten Magma flows to the top of the crater slowly and sinks back which makes presser. My mantle is consist of hot molten rocks on top of me is the crust.

My crust is the outer most layer. It protects us from the hot magma that flows to top and separates the plates.