What are the different layers of the earth?

The mantle is the second layer of the earth. It is split up into two different parts, the lithosphere (which is the top part) and the asthenosphere (which is the bottom part). The lithosphere is a dense rock made out of iron and nickel, the asthenosphere is a plastic like fluid. read more

The Earth’s core is the innermost section of all the layers. It is distinctly made up of two parts which are the outer core and the inner core. Both the outer and the inner core are mostly made up of iron, nickel and other heavy metals as conjured by geologists. read more

The Earth is composed of four different layers. Many geologists believe that as the Earth cooled the heavier, denser materials sank to the center and the lighter materials rose to the top. Because of this, the crust is made of the lightest materials (rock- basalts and granites) and the core consists of heavy metals (nickel and iron). read more