Item number: 4893156033062 View all from 4M KidzLabs > View more: Construction Kits > DIY Construction Kit Lemon Clock by KidzLabs Want to make your clock tick with a lemon? It's possible! Let your kids discover the science behind batteries with this educational toy. With this construction kit you turn a lemon into a battery, which you can use to make a clock tick. For children aged 8 and up Educational toy Easy to use Product specifications KidzLabs – Lemon Clock Building Kit Item description KidzLabs – Lemon Clock Building Kit Item number 4893156033062 Suitable for age D - 4-7 Years, E - 8-12 Years, F - 13-17 Years, G - Adults Country of origin United States Contents: Copper plate Zinc plate LCD clock Wire Instructions Required Lemon not included Environmental information about KidzLabs – Lemon Clock Building Kit Green Science Green Science teaches kids the principles of renewable solar, water, magnetic, gravitational, and wind energy to build a cool, clean machine that works! Green Science building kits teach young engineers to use the principles of physics to build their own gadgets, robots and cool devices. The 4M Green Science series lets children discover the wonders of physics and chemistry.