Made of two kinds of crust:
Continental Crust and Oceanic Crust

Thinnest layer

Continents are made of continental crust

Less dense* than oceanic crust

Sits higher on the mantle than oceanic crust

Made of rock: granite

Dense: how tightly packed or close together a substance is.

Oceans lie on top of oceanic crust

Thinner and denser (heavier) crust than continental crust

Also made of rock: Basalt

Made up of the crust and the rigid* upper part of the mantle


rigid: hard

The asthenosphere is the upper layer of the earth's mantle that sits below the lithosphere.

Less rigid layer than the lithosphere

Thickest layer of Earth.

Contains the asthenosphere and part of the lithosphere

Convection current* is constantly in motion within the mantle


convection current...more on this later

Fluid layer made of iron and nickel

Made of iron and nickel

Solid due to the extreme pressure exerted* by all the layers that surround it.

Hotter than the surface of the sun

*exerted: to put force or physical pressure on something