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

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Leave your computer on 24/7. Will this lead to to more frequent crashes, freezes, and a slower processing speed? Find out in this science fair project idea.

Science fair project in which you will create your electricity by making a homemade battery using salt water, a nail, and a copper wire.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Learn how to relight a candle by lighting the vaporized wax in the smoke, and test how various kind of wax and candle brands relight differently.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

This social science experiment endeavors to determine whether certain types of animals provide greater physical and mental health benefits to their owners.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

This science fair project explores discover whether the acidity of sour candy is comparable to that of battery acid.

This science fair project idea explores discover whether mixing solutions of equal distances from neutral pH (7) will create a solution close to pH 7.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

Check out this cool middle school science fair project idea to find the difference between organically grown and commercial brands of foods.

This science fair project idea explores the different properties & interactions of sugar molecules.

This science fair project idea tests whether tall people have the ability to swim faster than people of average and shorter heights.

The objective of this science fair project idea is to explore which brands of "anti-fade" shampoos work the best to keep hair color looking fresh.

Find out which part of a flame burns wood the fastest and also if this is true for all types of flames such as candle-flame, burners, and lighters.

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.

Find out whether matte or shiny nail polish lasts longer.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Should you use âFITâ Fruit and Veggie Wash or plain water to wash your produce? Find out in this science fair project idea.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

This fun science fair project for 8th grade demonstrates what Kepler's 3rd law predicts about a planet's orbital period and its distance from the sun.

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This project examines various algorithms to determine the ideal algorithm for a strategy game.