Bio Clock

[vousami]

This is really neat - basically you experiment with different power sources to make this clock

Ketchup Keeps This Clock On Time!
The versatile Bio-Clock demonstrates how simple chemical reaction can create usable electricity. Add almost any household materials to its electrodes and this amazing clock has the power to run accurately and non-stop. Ketchup, toothpaste, lemons, even cola works well.

Experiment with your own unexpected power sources!
Easy to assemble; extra electrodes and instructions included.

Ages 8 and up.
Grades 3 and up.


Museum Tour - Bio Clock (http://www.museumtour.com/site_product_details.php?item_no=3938)

[Liam]

Wow that's really neat :) I would really like to try one of those. I've seen similar things in science projects and was always amazed that it could actually work.

[Beatrix]

Kids will have a fun time setting different natural products to get the clock running. The site says it runs accurately, so it may be worth a try, even just as gift for kids.

http://www.museumtour.com/images/products/3938_300.jpg