How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project idea explores whether talking to a plant will help it grow.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

In this fun activity, your child will create their very own solar oven to bake s'mores!