There is a whole range of physical laws inside this construction kit. STEM Simple Machines covers the topics on which the various tools and machines are based (rope and bar, lever, pulley, and inclined plane). But we don’t just get to explore complex mechanical functions like those of a differential gear – we also examine exciting models from our pupils' everyday lives in great detail and give them those eureka moments! The mechanics of a screw clamp and a pulley is just one example of the mechanical functions that we explore. We will be able to measure and check the results of the practical experiments with the help of the spring balance included in the kit.