Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This project compares the strength of one, two, and three-ply toilet paper.

Discover how and which salt melts ice the quickest.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

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

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Have your child kick off their summer vacation by making a miniature water slide!

This science fair project idea determines what household items are good conductors of electricity.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

This science fair project idea determines if the color of light affects the growth of plants.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.