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Teach your child how butter is created by shaking up cream the old-fashioned way.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

Have you or your child ever heard that nursery rhyme and wondered just what curds and whey are anyway? Do this simple experiment together to find out!

This classic children's game demonstrates how sound travels through air vs. through a solid.

Tin can phones offer something modern versions don't—a fun project to make with a friend, and a dramatic illustration of vibration and sound waves.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

This science fair project idea determines whether the older population prefers darker, duller colors rather than bright and lush colors.

Help your kindergarten science maven explore the water cycle without getting everything wet.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project idea produces varying pitches of sound.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

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

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

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

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.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Multiple-choice test questions can be confusing. Here's a toolbox of tricks and strategies to help your teen become a multiple-choice master.

Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.