How Do The Densities Of Earth's Layers Compare?

Knowing that some things float on water while others sink gives a good idea about how density relates to things around you. Not only does density determine when something will sink in water, it also is responsible for the different layers on the Earth!

Below you will find photographs to represent the different layers of the Earth. At the right of each photograph, you will find the density for that layer.

Look closely at each layer and determine what the most correct order is. Then check your answer by highlighting the box under the photographs.

A

Density = 3 g/cm3

B

Density = .0013 g/cm3

C

Image courtesy of Reid Morgan

Density varies between14.5 g/cm3 at the core to 4.5 g/cm3 at the mantle.

D

Density = 1 g/cm3
 Highlight the box below to check your answer. B, D, A, C
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