Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Do human lie detectors exist? Charge up your powers of observation to see if you can tell a lie from the truth.

Use a dichotomous key to identify plants or animals.

2011 VIRTUAL SCIENCE FAIR ENTRY: The objective of this science fair project is to develop a microcontroller and circuit that can conduct electricity.