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 ...

6. Show students how to cut their eggs. 7. Ask students to name the different layers of the Earth's interior using the egg as a model that represents the Earth. Caution: The egg analogy has some ...

The Earth's internal layers including the mantle, outer core and inner core. New research shows the inner core undergoes structural transformation likely caused by outer core disturbance.

Our planet's interior is much too deep and hot to explore ... Seismic waves are shock waves that propagate through Earth's layers after an earthquake or explosive event, traveling at different ...

This insight suggests that something within the Earth is rotating, albeit at a different rhythm from the rest of the planet. The Chinese scientists propose that this internal layer is the solid ...