Pulleys consists of one large pulley and several smaller pulleys around it. The exhibit user uses rubber bands to connect the large pulley to one or more pulleys and notice the effort needed to turn them. He/she will also observe that differences in diameters will translate into differences in the speed of rotation. Pulley teaches the importance of simple machines like the wheel, the transfer of mechanical energy, as well as other concepts of mechanics like inertia, conservation of angular momentum and friction.

Pulleys is available in the "I AM a Scientist" travelling exhibit package.