STEM Simple Machines, 1 Each

STEM Simple Machines by United Scientific is an Engino® construction set that combines the five basic Discovering STEM sets to cover all simple machine mechanisms. Students build 60 working models on levers, the wedge, the wheel and axle, the screw, the inclined plane, the pulley, gears and linkages. Included booklets give instructions, theory, experiments and a quiz for each chapter, with an online building guide. It suits a full physics or technology unit.