Encourage your children to learn S.T.E.M. skills with the Engino Discovering S.T.E.M. Newton's Laws Set from Elenco. Designed for ages 8 years and older, this set is all about Sir Isaac Newton's laws of motion, which are the basis of classical mechanics that still describe most of everyday life situations. Observe the effects of kinetic and potential energy and see first-hand how energy is transformed from one form to the other. Build 8 models.