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Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

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.

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?

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.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

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

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

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

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

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

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

In this experiment we will be determining whether birds prefer certain colors of seed.

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

Examine the effect of pressure on carbonation in soda.

This science fair project idea explores the egg's thin membrane.