LOL! Blink is right, think about it like this:

examples
LxW = 10ftx10ft = 100ft^2 (because it's a foot x a foot, or two feet, or feet squared)

LxWxH = 10ftx10ftx10ft = 1000ft^3 (because its a foot x a foot x a foot, or cubic feet)

Just remember, area is a plane and is flat, like the floor; area is always squared. Volume is 3-dimensional, like a whole room; volume is always cubic.