Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.

This science fair project idea identifies clouds as a means of predicting the weather.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

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

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

This science fair project idea researches the effects of acid rain on plant growth.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This science fair project idea deals with the qualities of shade on a sunny day.

Discover which fabrics shrink the most in the wash and why.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

This science fair project idea measures and compares effects of chemical weathering, specifically carbonation, on different kinds of rocks.

In this project, a magnet is used to collect iron from breakfast cereals.

The project determines which laundry detergent is best for cleaning clothes.

The project investigates which soft drink is worse for your teeth by observing the affect of soft drink on limestone.

In this experiment, the weight of aluminum cans will be compared.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

This science fair experiment idea's objective is to understand the general concept of an acid and a base.