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Research optical illusions and human auras. Understand why the probable cause of perception is mach bands.

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.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Science fair project that determines the correlation between wind direction and subsequent weather patterns.

Science fair project that uses distillation to convert salt water into fresh water.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Science fair project that examines the benefits of the plant enzyme: pectin methyl esterase (PME). Where is PME found in the plant? What does it do chemically?

This science fair project idea examines various dead zones and investigates the cause and how it can be fixed.

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

This science fair project idea produces consumable fresh water from salt water through desalination.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

Free science fair project idea that examines the ergonomics of your environment. Redesign your living space to be better suited to your lifestyle.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

Study blind spots, run experiments in blind spot detection, design an original blind spot experiment, test your design on volunteers

Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

Determine whether carpet placed on a lawn will kill grass and weeds. Choose an area of lawn that you would like to remove, record grass that is dead or dying.

Learn about the factors that influence group conformity.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

Science fair project that demonstrates the principle of conservation of mass by conducting a chemical reaction inside a sealed Ziploc bag.

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Determine the maximum distance traveled by projectiles launched at an angle. Use some cool math to figure out at which angle your projectile will go farthest.