Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

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

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

This science project teaches students to classify different shapes of leaves.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Discover how and which salt melts ice the quickest.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

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

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

This science fair project idea explores how length affects the weight a bridge can hold.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Science fair project that examines condensation and the conditions needed in order for dew to form.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.