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Flying MachinesBuild a rubber-band-powered flyer, design symmetrical wings, and test how each design flies.From $4.20
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Wind-Up VehiclesBuild a car powered by a wind-up spring, then rebuild it to invent a unique vehicle of your own design.From $4.20
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HypnotizersBuild a wind-up machine that draws colorful spirals and moiré patterns by itself.From $4.88
Learners build
A set of spring-powered builds that store energy and release it as spinning, rolling, and flying motion.
Learners start by winding up a mechanism and watching stored energy turn into movement, then compare how shape, weight, launch angle, and surfaces affect each design.
From there, they can redesign for longer spins, straighter rolls, higher flights, new patterns, or playful challenges that make energy transfer visible.
Educator Resources
Student-facing slides introduce the concepts, guide the activity, and help learners reflect on what changed. Educator materials support setup, pacing, discussion, and extensions so this can work in classrooms, libraries, homeschool groups, clubs, or makerspaces.