The project determines which laundry detergent is best for cleaning clothes.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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.

This experiment investigate whether children in different age groups learn better from a computer program or a human teacher.

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.

This science fair project idea measures and compares effects of chemical weathering, specifically carbonation, on different kinds of rocks.

Help your child celebrate the summer and the sun by making a sandy seascape.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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.

Illustrate the idea of light refraction with this exciting and mystifying experiment.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

This science fair project idea shows kids how to grow mold and whether mold grows better in dry or moist conditions.

In this project, a model of a submarine is built to simulate the buoyancy and displacement of water and air.

Science fair project that examines how cell membranes allow the inward and outward flow of materials as demonstrated by eggs.

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

The project determines which type of birds prefer which type of birdseed.

This science fair project determines the quality of a given product.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

This science fair project idea determines if the color of light affects the growth of plants.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Check out this cool science fair project idea to explore various aspects of projectile motions like mass, angle and distance.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.