Here, temperatures reach extraordinary levels, estimated to be between 7,200–8,500ºF (4,000–4,700ºC). What Are Some Interesting Facts About Earth's Inner Core? ), The Secret Science of Solving Crossword Puzzles, Racist Phrases to Remove From Your Mental Lexicon. Beneath the crust’s surface, the inner core extends 3,200 miles further. The inner core is the Earth’s deepest layer, and it is a solid iron ball that is approximately 1,500 miles in diameter. It is a solid metallic ball made mainly of iron. The inner core is unattached to the mantle, and it makes up 1.7 percent of the Earth’s mass. It's Mostly Made of Iron. It's Hot...Really Hot. 5 Facts About the Earth's Inner Core. The Earth’s rotation causes the core to spin, which leads to the creation of an effect that maintains the Earth’s magnetic field. The Earth's inner core is surprisingly large, measuring 2,440 km (1,516 miles) across. It Spins Faster Than the Surface of the Earth. Although the inner core is very hot, it is not liquid like the outer core. The tremendous pressure causes the inner core to form into a solid mass. Is the Coronavirus Crisis Increasing America's Drug Overdoses? The inner core is the fourth layer inside the Earth. Fact Check: What Power Does the President Really Have Over State Governors? Although it is extremely hot, the iron cannot melt due to the high pressure. Will 5G Impact Our Cell Phone Plans (or Our Health?! The high temperatures reach up to 9,000 F, and the pressures are almost 45 million pounds per square inch, which is 3 million times the air pressure at sea level. The inner core also consists of nickel and sulfur and smaller amounts of elements other than iron. The metals are compressed tightly together and are forced to vibrate as solid. ANDRZEJ WOJCICKI/Science Photo Library/Getty Images. The inner core is the Earth’s deepest layer, and it is a solid iron ball that is approximately 1,500 miles in diameter. Indirect methods, such as seismic tomography, are used to study the core and determine its properties. Festival of Sacrifice: The Past and Present of the Islamic Holiday of Eid al-Adha. Although it is extremely hot, the iron cannot melt due to the high pressure. The inner and outer cores create the Earth’s magnetic field. Interesting Inner Core Facts: The temperature of the inner core is believed to be approximately 5400 degrees Celsius, or 5700 Kelvin. It's Almost The Size of the Moon. The inner core also consists of nickel and sulfur and smaller amounts of elements other than iron. Most of this layer comprises iron, but scientists theorize that it also contains other elements such as sulfur, potassium and carbon. This heat is caused by three elements: residual heat from the formation of the earth, gravitational forces from the moon and the sun, and and radioactive decay of earth's inner elements.
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