4M 00-03275 (Potato Clock Kit, Brown

• The Potato Clock uses a pair of ordinary spuds to power a digital clock.
• This kit includes a digital clock, wires and prongs; two potatoes are all that's needed to create a working clock.
• This kit is ideal for young science enthusiasts, and offers a valuable lesson on the transformative power of green science.
• Detailed assembly instructions included.
• No batteries required.
• Challenge your child's imagination with 4M toys and kits.
• 4M educational toys cover a wide range of educational subjects and include science kits, arts and crafts kits, robotics kits, and more.
• 4M offers a wide range of toys and kits to let you build a clock, crochet a placemat, or turn your room into a planetarium--all in the name of making learning fun.
• This kit contains a digital clock, and the instructions and everything you need (minus the spuds) to run it
• Does not include potatoes
• Watch your child's delight and sense of accomplishment with the clock they create
• Turn the kids onto the notion of leaving a smaller carbon footprint
• No batteries required

Product description 7 years & up. The two Potato Clock allows you to generate enough electricity to run a digital clock using potatoes! Just push the zinc and copper electrodes into the potatoes causing an oxidation/reduction reaction that is converted to low voltage. Safety Warning Choking Hazard - Small Parts