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

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Science fair project that examines condensation and the conditions needed in order for dew to form.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

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.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

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

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.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

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.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

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.