Penguins may not be able to fly, but they are excellent divers. We divided into 4 groups and each student made a 3D shape from of small piece of play dough (sphere, rectangular prism, cylinder or cube). Then we dropped each shape through the chamber to see which shape was fastest. We did have several problems with our experiment. The chamber leaked terribly and the sychronization between student dropping the shape and Mrs. Weronko pressing the "start" button on the stopwatch was not very good. However, the students were able to make the conclusion from observation that the cylinder was visibly faster than the other shapes. Also we made the connection that the penguin's cylinder-shaped body makes it just the right shape for diving.