“When you twist up this timer and let it go, the rubber band starts to unwind and swing a bead. But wait — the bead suddenly wraps around a pole, and the machine stops in its tracks! And then just as suddenly, the bead unwraps, and the machine starts moving again. The way it starts and stops is really similar to how clocks and watches tick and tock to keep time. Give this timer a spin below!”
Ages 5-16