Engineering for Kids Jr Engineering/STEM Club Mechanical Engineering Mini Trampoline -Spring into action! Students explore elasticity and energy transfer as they build and test a mini trampoline. Marine Engineering Self-Propelled Boat - Make a splash with engineering! Students explore elasticity and energy about buoyancy and propulsion, then create a boat that moves on its own. Mechanical Engineering Straw Grabber -Grab, lift, and move like a pro! Students investigate simple machines, then build a straw-based grabber to pick up small objects. Electrical Engineering Constellation Projector -Light up the night sky! Students learn about circuits and astronomy while creating a projector that displays constellations on the wall or ceiling.