The Layers of the Earth

The Layers of the Earth are the deepest depths, the very bowels of the earth are so deep that mankind cannot travel into the center of the Earth. The crust is 40 kilos (Kilometers). The upper mantle is 40 to 400 kilos. The transition region is 400 to  650 kilos. The lower mantle is 650 to 2700 kilos. The "D" layer is 2700 to 2890 kilos.  The outer core is 2890 to 5150 kilos deep. And finally, the inner core is 5150 to 6378 kilos deep. In all, this totals roughly 18,208 kilometers deep. It is about 7 layers deep, although it is 6 regions in all. The crust is the top layer that we live on, and all living things would survive on the crust. The mantle is right beneath this, which is composed of molten magma. This is the second to biggest region of the Earth, and is very hot. Volcanoes form from cracks in the crust, and once in a while, a live, active volcanoes blow their top. After the mantle, the core of the earth is made out of molten iron. This is the biggest region of the Earth. The molten iron produces earth's magnetic field. The temperatures were so hot, that the iron remains in a liquid state!