The Ketchup Experiment! Kid friendly site with lots of neat experiments! It has one that makes a rocket out of a film canister, which would be good for an grade space unit, but it has to many kid friendly expiriments. Great site for any science teacher.
British artist, physicist, and all-around science enthusiast Paul Friedlander produces kinetic light sculptures that provide a colorful feast for the eyes.The vibrating rope becomes invisible to the human eye, but colors from the light