Highlights Explore green science & discover how to power a digital clock using potatoes. The Potato Clock Science Kit 
 Includes:: clock with wires,  pots,  connecting wire,  transparent tapes,  copper & zinc strips & detailed instructions
- just add potatoes. After learning about how potatoes can power a clock,  kids can experiment to see what else can make a clock tick. Makes a great science fair project. Recommended for ages 8 & up. Specifications Weight approx (kg): 0.1635 Size approx (cm): 6.6 x 3.3 x 0.8 Package Contents 2 Potato holders 2 Connecting wire.1 Transparent tapes.4 Copper & Zink stripes 1 Digital clock with wires.1 Instruction manual.