Inner Core

The inner core is a solid ball of heat in the center of the Earth. The inner core is so hot that it melts the metal in the outer core into liquid magma. Even if the inner core is the second smallest layer of the Earth it is definitely the hottest layer of the Earth. The inner cor eis composed of an element called NiFe, or nickel and ferrum also known as iron. The Inner Core is about 5000-6000 degrees Celsius(9032-10832 degrees farenheit).