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.

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

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

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 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.

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.

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.

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.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

This science fair project idea investigates how the shape of an object affects drag.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

This project tests the hypothesis that dark colors absorb more heat than light colors.