What are the layers of the Earth in order from the middle(center) of the Earth to the outer layer.
The layers of the Earth, in order from the middle (center) of the Earth to the outer layer, are as follows:
1. Inner core: This is the innermost layer of the Earth, consisting primarily of solid iron and nickel. It has extremely high temperatures and pressures, causing it to remain in a solid state despite its high temperature.
2. Outer core: Surrounding the inner core is the outer core, which is also composed mainly of iron and nickel. However, this layer is in a liquid state due to slightly lower temperatures and pressures compared to the inner core.
3. Mantle: The mantle is the thickest layer of the Earth, located above the outer core. It is predominantly made up of solid rock, rich in iron, magnesium, and silicon compounds. The mantle is divided into two parts: the upper mantle and the lower mantle.
4. Crust: The outermost layer of the Earth is called the crust. It is a relatively thin layer composed of solid rock, and it is divided into two types: continental crust, which forms the continents, and oceanic crust, which underlies the ocean basins.
Therefore, starting from the middle (center) of the Earth, the order of the layers is as follows: inner core → outer core → mantle → crust.