EARTH'S INTERIOR

Crust, Mantle, Core

3 main layers

Crust

Outermost layer of the earth

Crust

Thinnest of all layers, like the shell of an egg

Upper mantle

Rigid, moves with the crust

Lithosphere

Crust and upper mantle

Middle Mantle

Toothpaste consistency, where convection currents take place (what causes plates to move), AKA the asthenosphere

Lower mantle

Lowest portion which remains liquid, very hot, makes up 55% of earth’s volume

Core

Large sphere of metal, mostly iron

Core

Temperature is about equal to the sun’s surface

Core

Split into two, outer and inner

Outer-core

Liquid iron

Inner-core

Solid iron, kept solid by intense pressure