The ever popular award winning Potato Clock!

What? No batteries? Be a scientist and discover how to power this digital clock using just potatoes.

Experiment to find out what other things will power the clock - you will be amazed!

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.