The SMILE Program @ OSU

Previously on the blog we showed you how to build a biodegradable battery from washers, pennies, and vinegar. A SMILE Club from Forest Grove High School shared with us the many different objects they used to try to create a battery.  Success came when the club used a strawberry as their energy source, but what characteristics of strawberry make it a good battery? We think this video does a great job of explaining the science behind this concept:

Hopefully after watching this video you have a better understanding of anodes and cathodes.  What else could be used in place of the strawberry or lemon? Scientist Angela Belcher is working on making batteries from viruses so that batteries can be biodegradable.  In this article she expands on her research.  What do you think will make a good battery?