WebEarth Sciences. Earth Sciences questions and answers. How do we know that the Earth's inner core is solid and that the outer core is liquid? [3 marks] What could explain why the Earth's outer core is liquid and why the inner core is solid? [ 3 marks] How can we tell that the composition of the Earth's interior changes abruptly at the boundary ... WebThe outer core is the third layer of the Earth. It is the only liquid layer, and is mainly made up of the metals iron and nickel, as well as small amounts of other substances. The outer core is responsible for Earth’s …
Internal structure of Earth - Wikipedia
WebSep 27, 2024 · The lithosphere is the solid, outer part of Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth’s structure. It is bounded by the … WebApr 14, 2024 · The temperature changes significantly from the outer core to the crust of the Earth. At the outer core, temperatures can reach up to 5,500°C (9,932°F) due to the intense pressure and heat generated by the Earth's radioactive decay and residual heat from its formation. As the heat is conducted through the mantle and lithosphere, … asahi international
Earth
WebFeb 17, 2024 · Inge Lehmann, (born May 13, 1888, Copenhagen, Denmark—died February 21, 1993, Copenhagen), Danish seismologist best known for her discovery of the inner core of Earth in 1936 by using seismic wave data. Two boundary regions, or discontinuities, are named for her: one Lehmann discontinuity occurs between Earth’s inner and outer core … WebThe outer core is around 1800 miles under the crust and is approximately 1400 miles thick. It is composed of metals such as iron and nickel. The outer core surrounds the inner … WebEarth's outer core is a fluid layer about 2,400 km (1,500 mi) thick and composed of mostly iron and nickel that lies above Earth's solid inner core and below its mantle. Its outer … asahi intecc usa linkedin