Do you know how Newton’s Cradle works? In this video, Museum Educator Eric demonstrates how momentum will always stay the same within a closed system. The same number of bowling balls pulled out of the Newton’s Cradle and then released will always be the same number of bowling balls that come out the other side, even if the more bowling balls are pulled out than remain behind. This is because of momentum, which does not change within a closed system with no external forces acting on it. Come along on a journey of scientific discovery and Newtonian mechanics!