This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

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

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Test your friends to find out if you can replicate the placebo effect's incredible results.

This science fair project idea identifies the properties of soap bubbles and invents a new or improved bubble solution.

This science fair project idea investigates whether air has mass and weight.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

In this project, the fingerprints of family members are compared to determine if people from the same family have similar fingerprints.

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

In this science project, the center of gravity is explored.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

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

The project investigates how water and movement affects erosion.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

In this project, sunlight is blocked from a leaf in order to see the affect that sunlight has on leaves.

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

In this experiment, the weight of aluminum cans will be compared.