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

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

The purpose of this science fair project is to build a basic radio.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

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