This science fair project idea experiments with spinning color wheels and optical illusions.

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.