Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

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

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.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!