You may know potatoes as a good source of potassium, but did you know they can be used to power an alarm clock. With this Potato Clock Science Experiment Kit you can generate enough electricity to run a digital clock by pushing the zinc and copper electrodes into the potatoes causing an oxidation/reduction reaction that is converted to low voltage. The clock is also capable of running the clock from tomatoes, lemons, apples - even soft drink or beer. BYO Potatoes! Box Contents 1x Digital Clock with wires 1 x Connecting Wire 20 x Transparent Tape 2 x Copper Strips 2 x Zinc Strips 2 x Plastic Cups 1x Instruction Manual Suitable for children aged 10 and overWhy buy an Altronics Kit?Altronics kits are premium do-it-yourself projects designed to be assembled with ease. However, basic electronics knowledge and soldering skills are essential to construct our kits. A difficulty rating is provided to help determine if your ability is sufficient to build the kit project. Please note, once assembly has been commenced we are unable to honour any warranty claims. Please see the full details here.Information for schools.Altronics are one of Australia's leading suppliers of educational electronics kits to schools, science workshops and institutions. Our kit range aims to introduce kids with curious minds to the concepts of electronics, solar power, robotics and DIY construction.