K1146 Potato Clock Science Experiment Kit Suitable for Children Aged 10+

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Overview 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 gener ate 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 over Show more