Can you make a battery from mud?  Why does it work?  Check out the Kids’ Science Challenge website and find out.  If questions like this are always popping into your head, this is the event for you. 

The Kids’ Science Challenge is a competition for 3rd-6th graders.  You have to submit experiments and problems for real scientists and engineers to solve.

You can enter in all three of the topic areas: Sensational Sounds, Super Stuff for Sports” and “Magical Microbes”.  There is a limit of one entry per topic.  The deadline is February 28, 2011.