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This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

In this science fair experiment, high school students determine if all proteins denature at the same temperature.

In this project, you'll create Oersted's experiment, which relates to how electric currents create magnetic fields.

This science fair project idea determines which method of hand cleansing is the most effective.

This experiment evaluates whether the phenomenon of "choice blindness" occurs more often with men or women.

This basketball project explores the best way to make the perfect shot every time.

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Evaluate whether birth order influences personality.

Determine whether the application of Febreeze will lower the bacterial count.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

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

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.

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

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

Check out this cool science fair project idea to explore the relationship between pulse rate and blood pressure in healthy people.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

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

This science fair project idea studies the acidity of rain water and whether the acidity is the same on all rainy days or does it fluctuate.

Test whether plants can grow without sunlight and water.

see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Research basic components of vacuum cleaners, consult vacuum cleaner manufacturers for advice. Design vacuum with attachments that change automatically.

Think about the adaptive utility of an important aspect of our physiology.