Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Using a toy race car kids create a visual model of the Doppler Effect.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

In this experiment we will be determining whether birds prefer certain colors of seed.

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.