Examine the effect of pressure on carbonation in soda.

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.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

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.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

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

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 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.

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

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

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

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

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

The project determines determine if a sports drink affects the heart rate of a student athlete during exercise.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

In this project, waves of vibrations are experimented with using water in glasses.

The project is to investigate yeast fermentation and its results on hand of latex balloons.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

In this project, the affects of vitamin E are observed on a rose petal.

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