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This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Score a bull's eye with this cool science fair project on horizontal projectile motion. Guide a marble to its target and predict its trajectory using math!

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

This science fair project determines whether the types of plants growing in a Pacific Northwest rain forest environment are influenced by the soil acidity.

This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Science fair project that tests whether cats have a preference for organic food.

Demonstrate if cooking destroys all bacteria that is present in raw meats such as salmonella.

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.

Learn how different types of soil affect how animal tracks form in this experiment!

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

Demonstrate Newton's laws of motion by examining the relationship between mass, force, and acceleration during free-fall.

Science fair project that demonstrates how stalagmites and stalactites are formed.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

This project determines what category of person is most likely to be ticklish.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

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

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

This experiment explores how listening in to a one-sided conversation affects concentration.

Explore if planting seeds in a certain direction will affect how fast it germinates.

Will people still feel hungry once they eliminate grains from their meal? Find out in this science fair project idea!

Science fair project that determines whether wireless networks damage living plants. Are WiFi radiation hazardous to your health?

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This experiment tests which gender is better at catching how a magician performs his tricks.