Make five awesome machines and learn about the physics of force, motion, and energy. Construct a rubber band-powered race car that zooms across the floor. Build a catapult and launch objects through the air. Set up a launching device that propels a motorcycle across the floor at the push of a lever. Build a balancing dragonfly and a weathervane to experiment with forces.
A 28-page manual guides your building and experiments with step-by-step illustrated instructions.
CHOKING HAZARD -- Small parts. Not for children under 3 yrs.