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

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

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.

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

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

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.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

This science fair project idea investigates if fats add to the flavor of food.

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

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

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

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

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

This science fair project idea determines which method of hand cleansing is the most effective.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

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

This science fair project idea demonstrates that plants give off water.

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

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

Start your toy engines -- this is going to be a fast and friction-filled race!

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

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

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.