This science fair project idea examines whether boys and girls differ in reflexes.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This project investigates the affect of storage temperature on microwave popcorn.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

Give your budding young observers a chance to discover simple machines at use in their own home.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Examine the effect of pressure on carbonation in soda.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

This science fair project idea determines the most effective method of preserving food.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

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.

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

This science fair project teaches students the differences between fruits and vegetables.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

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