Learning Resources Simple Machines, Set of 5 Contains enough pieces to build a lever, pulley, inclined plane, wheel and axle, and wedgeall at the same time Inspire future engineers, scientists, and inventors by exploring effort, force, load, motion, and distance with simple machines Develop a deeper understanding of how machines work while flexing mental muscles needed for STEM careers Modify machines with 4 included weights and 8 included rubber bands to explore effort, force, load, motion and distance 63 pieces. Ages 8+