Earth's Layers and Composition

Front

the outermost layer of earth; made up of rocks (oceanic and continental)

Back

the Crust

Front

made up of hot, solid rock; thickest layer

Back

The Mantle

Front

Lithosphere

Back

the rigid outermost layer of the earth; consists of lower crust and upper mantle

Front

the solid upper mantle that is hot but is like plastic

Back

Asthenosphere

Front

it is a flow that transfers heat within a fluid

Back

Convection Currents

Front

Inner Core

Back

solid metal; iron and nickel

Front

Outer Core

Back

liquid metal; iron and nickel