Science fair project that uses iodine solution to demonstrate how starch is turned into sugar when it is chewed in the mouth.

Test ability to distinguish between natural and artificial aromatherapy oils. Select fragrance, natural and synthetic sample. Volunteers state preference.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Learn about the anatomy of the autonomic nervous system and its relationship to the rest of the body.

This experiment explores whether caffeine improves athletic performance.

This project uses toy cars to determine how friction and gravity affect cars and braking.

In this science fair project, students create their own miniature salt flats at home.

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

This experiment evaluates how a diet that is rich in "mood-enhancing" foods affects the way people feel over several weeks.

This science project has students study the idea of human beauty.

This science fair project evaluates which sense produces the fastest response time: hearing, touching, smelling or seeing.

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

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

This science fair project idea studies whether eating a hearty breakfast before and exam will get them better test scores.

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

This experiment observes inattentional blindness and investigates whether certain age groups or genders are more likely to demonstrate this phenomenon.

Compare different remedies for cooling the mouth after eating spicy food.

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

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This science fair project idea creates an underwater habitat and explores the basic needs of living things under water.

This science fair project examines how seeds hitchhike on animals and clothing.

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.

Test the effects of left and right handedness on writing speed and penmanship. Volunteers hand-copy the same paragraph of text, which samples look neater?

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

This experiment will evaluate how texting and talking on cell phones influence reaction time.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Research history of programming language. Design a new or improved programming language. Create a display that illustrates the features and improvements.

Create a colorful, informative display that illustrates the properties of blood cells. Prepare slides using samples of fresh raw beef or chicken bone marrow.