PBS
Pbs Teachers: Scientific American: Flying Free: Winging It
Explore flight and the science behind lift and wing shape by creating two paper airplanes - a monoplane glider and a ring-wing glider.
PBS
Pbs Teachers: Scientific American: Flying Free: Make a Wind Tunnel
Investigate the science of flight, the tilt or angle of attack of a wing's surface and the effect of control surfaces. Construct a model of an open jet wind tunnel using a household desk fan to produce a flow of air.