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 ...

You may want to start with a simple example your students can ... Explain that the Earth is made of three main layers: crust, mantle, and core. Draw them on the board using colored chalk.

New study reveals that Earth's inner core is undergoing unexpected structural changes, challenging long-held assumptions ...

The Earth has a layered structure made up of the core, the mantle and the crust. Different elements are present in different parts of the Earth’s structure. The crust is made from enormous ...

This article was originally published with the title “ The Plastic Layer of the Earth's Mantle ” in Scientific American Magazine Vol. 207 No. 1 (July 1962), p. 52 doi:10.1038 ...

The rotation speed and shape of Earth's deepest layer has been experiencing some surprising changes. Best of CES 2025 Awards ...

The oxygen-rich ozone layer was also established, shielding the Earth's surface from harmful ... had sac-like bodies and a simple digestive system with a mouth but no anus. They caught food ...

Many parts of Earth are covered and protected by a layer of organisms called a biocrust. The layer acts as a skin for the Earth, protecting landscapes and reducing long-term damage. But climate ...

Earth's interior is made up of a series of layers that sit below the surface crust. In order of depth, these layers include the solid, but flowing mantle, the liquid outer core and the solid iron ...