General Waves Standing Wave GraphicA Slinky WaveNational Science Center--Activities
Sound Amplify with AirNational Science Center--Activities
Light and Color Pinhole CameraCrystals and the light bending through themOptics in Disposable Cameras--Peggy SchweigerNational Science Center--Activities
Electricity Coffee Cup MotorNational Science Center--Activities
Magnetism National Science Center--Activities
