Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

Do suds equal more clean or does a sud-free cleaning agent works just as well or even better?

This science project teaches students to classify different shapes of leaves.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Demonstrate how to tell the age of an egg without having to crack it open.

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

This science fair project idea investigates how images are influenced by changes in light.

This science fair project idea determines which flower lasts the longest.

Explore the electrical energy present in energy drinks.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Find out which kind of bubble wrap fares best when put in impact.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

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

Is there really such a thing as healthy gum? Students will learn what factors in chewing gum contribute to healthy teeth in this exciting science fair project.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

How does light affect plant growth? Do different colors of light work better than others? Find out in this classic science fair project idea.

This science fair project idea explores how far the average human can see.

This science fair project idea investigates how magnetism can defy the force of gravity.

This science fair project idea explores what common compounds can be easily separated out in a centrifuge.

Science fair project that compares the properties of different fabrics to determine whether natural or synthetic fabrics are better at wicking away moisture.

This science fair project idea determines what household items are good conductors of electricity.

This science project examines the thermal properties of several major greenhouse gases.

In this experiment, you will find out how human error can cause faults in any science task. This includes experiments conducted by famous scientists also.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.