Marble Timer

Construct a marble-powered mechanism that helps keep time! Experiment with your timer and design new paths to help the marbles run faster, slower, and everything in between. Then use your mechanism to time yourself while creating colorful dip-dye wood art. r
Everything needed, from materials to illustrated directions, is included, along with explore!, a bonus play u0026 learn magazine with extra projects and activities!r
As seen on: Red Tricycle