Light "Why is the Sky Blue?" http://www.sciencemadesimple.com/sky_blue.html An informational article about light. The Science of Light http://www.learner.org/teacherslab/science/light Learn about the color of light and the laws of light with these online activities. Exploratorium "Snacks" about Light: Projects students can do to learn more about light (not online activities) http://www.exploratorium.edu/snacks/iconlight.html Light and Shadow: http://www.bbc.co.uk/schools/ks2bitesize/science/activities/light_shadows.shtml