How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

Science fair project that examines how light wavelengths affect photosynthesis in the aquatic plant: Elodea.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Test your friends to find out if you can replicate the placebo effect's incredible results.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

What kind of fabric holds dye best? How can you improve a dyed fabric's colorfastness? In this colorful project, test colorfastness using mordants and bleach.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

Find out if most people can distinguish the difference between tones on different instruments.

This science fair project evaluates the suggestibility of males versus females in copying the actions of those around them.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

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

Is garlic antibacterial? Antimicrobial? Kids find out by using common kitchen equipment and ingredients in this cool and easy microbiology science fair project.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.