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

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

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

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.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

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

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

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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.

Is it a square or a circle? See if you can trick your friends with this zany science project!

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

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

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

This science fair project teaches students about wilting and browning of salad greens.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Discover whether cold or hot water from the faucet will boil faster on the stove.

In this project children practice the scientific method while playing with puffy paint.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

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

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.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

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

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

In this science fair project, students use the streak test to tell minerals apart from each other.