Students learn about elasticity by measuring how high objects of different material can bounce.
Elasticity is the tendency of something to return to its original shape if it gets deformed. If something is very elastic, it will do this quickly and with great force. If it's not so elastic, it will do it slowly and with not as much force. This tendency to return to its original shape makes it possible for an object to bounce. When a highly elastic object hits the ground, it changes shape and instead of staying changed it pushes against the ground to revert to its original shape. This gives the elastic object its bouncy zing.