Investigate which substances are most effective at removing salt from water.

Science fair project that determines the effect of concentrated mental effort on physical performance levels.

This project uses toy cars to determine how friction and gravity affect cars and braking.

The science project fair idea explores the interaction between your nose, mouth, and brain when tasting a new food or drink.

This project determines how much the rebound rates of tennis balls change after ten games.

Experiment with fermenting various fruits, grains or syrups. Describe and illustrate the fermentation process in a detailed report.

This science fair project outlines the uses of gold and explores the monetary value of gold.

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.

Science fair project that determines how we can change potential energy into kinetic energy.

This science fair project idea teaches kids the different functions of a leaf.

This science fair project evaluates the suggestibility of males versus females in copying the actions of those around them.

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

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

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

Determine which video game elevates the heart rate best and burns the most calories.

Find out whether people within a family tend to have matching fingerprints.

The goal of this fun science experiment is to explore the limitations of sight and learn working of the human eyes.

Science far project which determines whether the material of a baseball bat affects the distance that the baseball will travel.

This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

This science fair project discovers the properties and uses of sand and develops new or improved methods, techniques, or products involving sand.

In this science fair project, students investigate how different colors influence appetite.

Determine whether cats have dominant paws. Observe which paw cat uses to reach for treats, feather, and string. Calculate percentage for two paws.

This science fair project idea demonstrates the property of bouncing in a fresh new way.

This science fair project idea determines which brand of batteries have the longest life.

Demonstrate which cooking method gets rid of the most fat.

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

This science fair project idea examines the differences between bottle water, filtered water, and tap water.