Scholars build a boat using an assortment of materials such as foam plates, aluminum foil, and skewers, then test its buoyancy with pennies. Challenge boat builders to construct the strongest or fastest boat in a healthy competition with...

If you have a rotating office chair in your classroom, you can have physics pupils participate in this simple, yet effective demonstration of angular momentum. One partner sits in the chair, arms outstretched, holding heavy weights. The...