What? No batteries?! Be a scientist as you discover how to power this digital clock using potatoes. The combination of metal strips included and ordinary potatoes make a simple battery that creates enough electricity to operate a small clock. This kit features a detailed instruction manual, guiding the young scientist to clearly understand how this works.
Features:
- Kit allows you to build your own digital clock powered by a potato (other kinds of fruits/vegetables can be used as well like apples, tomatoes and soft drink - you'll be amazed!)
- Includes digital clock with wires, pots, connecting wire, transparent tapes, copper and zinc strips and detailed instructions, Potatoes not included.
- Excellent as a science project or experiment
Email : fangzhengcn@hotmail.com
Skype ID : chanceller819
http://chinagift.en.ecplaza.net
