The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball ...
Situated between the mantle and the inner core, the Earth's outer core is a liquid layer of the Earth's core. It is mostly made up of iron and nickel, with little amounts of silicon and oxygen ...
deep inside Earth – dense regions of material that slow seismic waves down to a crawl. Furthermore, the researchers think these iron-rich layers would have had an insulating effect, keeping ...
The Earth is made up of different layers: Therefore ... The movement of the plates and the activity inside the Earth, is called the theory of plate tectonics.
The Earth consists of three layers: crust, mantle, and core. The Earth's crust is the outermost layer of the planet, consisting of solid rock that forms the Earth's surface. The mantle is the semi ...