Gas, water, and oil are usually located together underground.
If a geologist drills a bore hole (a well) into a trap, in what
order will the three substances be found? This activity will show
you by using air, water, and cooking oil to represent the natural
gas, water, and oil that is found in the ground. You can do this
experiment online, or try it for real in your own kitchen. Click
the bottle to try this experiment online.