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 ...

Ask students what part of the Earth the eggshell represents ... Ask students to name the different layers of the Earth's interior using the egg as a model that represents the Earth.

These indicate that matter in the earth's inner core is so highly compressed that it is twice as rigid as steel By K. E. Bullen Join Our Community of Science Lovers!

THE problems of the interior of the earth are primarily of a physical character, and, in the final appeal, only to be decided by mathematical treatment; but this, in its turn, must be based on ...

“We believe there are many more ancient structures waiting to be discovered in Earth’s deep interior,” Wang said ... This ...