The state of matter of Earth's inner core is solid. This highly compact sphere is due to the extreme pressures generated within the inner core.Continue Reading
The layers of Earth are classified based on chemical constitution and physical behavior of the rocks that comprise the planet. Based on physical behavior, the various layers of Earth include the lithosphere, asthenosphere, upper mesosphere, lower mesosphere, outer core and inner core. The outer core exhibits a molten, or liquid, physical behavior.
The inner core, discovered by Inge Lehmann in 1930, is a rigid metallic ball that is primarily composed of an iron-nickel alloy. The lithostatic pressure that increases with depth also increases the melting point of the alloy. The surrounding temperature is inadequate to liquefy the metal, hence, the inner core maintains its solidity.Learn more about Layers of the Earth
The center of the Earth is called its inner core, which is solid and surrounded by the liquid outer core. The outer core is surrounded by the solid mantle layer, which moves in response to a temperature difference of at least 2,700 degrees Fahrenheit between it and the inner core.Full Answer >
The Earth is divided into four layers: crust, mantle, outer core and inner core. The crust is the only layer of Earth that hosts life, as the mantle, inner core and outer core are too hostile for organisms to exist.Full Answer >
The four layers of the Earth are called the inner core, the outer core, the mantle and the crust. In addition, there are two different types of crust. The continental crust is the part that is under land, and the oceanic crust is the part under the oceans.Full Answer >
The temperature of Earth's inner core is estimated to be between 9,000 to 13,000 degrees Fahrenheit, as stated by National Geographic. The planet's innermost region is primarily made up of a solid iron composition due to extreme levels of pressure.Full Answer >