Determine if left-handed people have faster response times.

This science fair project idea investigates the difference in reaction times between boys and girls.

Science fair project that measures the relative times it takes a plastic bag and a biodegradable plastic bag to decompose.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

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.

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

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Find out whether pacing in long-distance running actually acquires for drastic changes in finishing times versus running super-fast at the start.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

This science fair project idea explores substances that cause a bubble to last longer.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

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

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

This science fair project idea examines whether music has an effect on a person's ability to complete a simple task that requires concentration.

Is exercise a cellular activity? Check out this fun science fair project idea to compare the carbon dioxide production before and after exercise.

The objective of this science project is to determine the length of time for different seeds to germinate.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea determines the probability of a coin landing heads or tails.

This experiment will explore if a randomly iterated algorithm will result in a pattern.

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

This science fair project idea investigates how color affects temperature.