I'm a visual learner and THIS would have made things SO MUCH easier! LOL I wish someone would have taught me this a long time ago so I would remember gallons, quarts, pints, and cups! This is pure GENIUS!
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.