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

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.

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

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

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.

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.

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.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

This basketball project explores the best way to make the perfect shot every time.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

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

The project investigates how friction affects motion by using different surface textures.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

This science fair project investigates why the number of visible stars changes from place to place.