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.

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.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

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

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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

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 will help students learn about non-vascular plants, such as mosses.

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

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

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

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

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

This science fair project idea investigates how the shape of an object affects drag.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Do different types of oil mix or stack? Find out in this science fair project idea!

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

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

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

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

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

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

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