This guy conducts all the 5th grade science projects you never had time for. Maybe there is a idea or two for a project for your 5th grader on his website? He and his merry band of fellow scientists look like they certainly have a good time getting the answers to questions you never thought of asking. There should be an award somewhere for these people. The Nobel Prize for Interesting but Worthless Experiments?

If you don't have anything else to do today check out this site. This investigation is my personal favorite. The picture of the guy doing an angel in powdered sugar is great.