Optical Society
Optical Society of America: Exploring the Science of Light: Classroom Activities
Experiments and activities for investigating the science of light, as well as in-depth explanations of some of the light principles.
Optical Society
Optical Society of America: Optics for Kids: Polarized Light (Pdf)
An investigation into how polarized light behaves, with instructions on how to make a polarizer using glass slides. With a link to an article explaining about polarized light. PDF (requires Adobe Reader).