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
under the photographs.