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

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

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

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

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

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

This project examines whether people's taste perception is influenced by what they see.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

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

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

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 project determines what category of person is most likely to be ticklish.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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

This science fair project examines how seeds hitchhike on animals and clothing.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

This science fair project will help students learn about non-vascular plants, such as mosses.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Plants and light seem to be good buddies, but how far does the friendship really go?

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.