The Earth is like a giant layer cake made up of many different layers and different fillings. Except Terra's fillings aren't made of good-tasting frosting and cake, but more rocks and metal. There are four different layers of the Earth discussed in this essay. These layers include the crust, mantle, inner core, and outer core. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay On the surface of the Earth is the crust, the uppermost layer, made up mainly of solid rocks. It is also composed of iron, oxygen, silicon, magnesium and aluminum. It is the thinnest layer among all the layers. The crust is deeper in areas where there are mountains. In those areas it can reach a thickness of 43 miles. The mantle is made up of rock, silicon, iron, magnesium, aluminum and oxygen. The mantle is 500 to 900 degrees. It is divided into the upper and lower mantle. They make up most of the layers of the Earth like the other layers. Despite being made of solid rock, the mantle is not completely hard. It's extremely hot. The movement of the mantle is what causes volcanoes to erupt and earthquakes to occur. The inner core is made mostly of nickel and iron. The temperature in the inner core is about 9,806 degrees, which is about the temperature of the sun. Scientists were never able to reach the inner core due to the high temperature. In 1997, scientists conducted experiments that showed that the inner core was rotating faster than the rest of the Earth. The outer core is made up of liquids and other metals. The outer core is the only liquid core. The layer is responsible for the Earth's magnetic field. The magnetic field protects the Earth from harmful things coming from the sun. Please note: this is just an example. Get a custom paper from our expert writers now. Get a Custom Essay Although we only see the Earth's crust, the thinnest layer, the Earth is not a solid rock. It is made up of several layers each of which has a different purpose. The crust is the top layer we see, the mantle causes volcanoes and earthquakes, the inner core spins and the outer core protects us from things that can harm us from the sun. Works Cited Aldridge, M. (2015). Inside planet Earth. National Geographic Kids.Anderson, D. L. (2015). The interior of the Earth: an interdisciplinary perspective. Cambridge University Press. Bowring, S. A., Williams, I. S., & Compston, W. (1989). 238U–235U systematics in uranium-bearing terrestrial minerals. Science, 246(4934), 962-970. Christensen, U. R. (1996). The Earth's mantle: composition, structure and evolution. Cambridge University Press.Duffy, T.S., Anderson, O.L., & Goncharov, A.F. (2001). Thermodynamics of mantle minerals—II. Phase equilibria. Reviews in Mineralogy and Geochemistry, 43(1), 65-124.Foulger, G. R. (2010). Plates versus plumes: a geological controversy. Wiley-Blackwell. Jacobsen, S. B., & Garnero, E. J. (2010). A stratified mantle transition zone in the Pacific Northwest. Nature, 466(7307), 1062-1065.Riffenburgh, B. (2013). Antarctic Encyclopedia. Routledge.Rolf, T., & Snieder, R. (2013). The Earth's mantle: from seismic tomography to mineral physics. Cambridge University Press.Tanimoto, T., & Lay, T. (2000). The earth's mantle. Nature, 405(6782), 633-634.