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

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Test your friends to find out if you can replicate the placebo effect's incredible results.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This science fair project idea investigates how magnetism can defy the force of gravity.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

In this project students experiment with making music using only glasses of water.

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.