Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

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

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

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

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project investigates why the number of visible stars changes from place to place.

This science fair project idea explores the different properties & interactions of sugar molecules.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

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

This experiment tests which gender is better at catching how a magician performs his tricks.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Find out which kind of bubble wrap fares best when put in impact.

This science fair project idea determines what household items are good conductors of electricity.

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

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This science fair project idea explores substances that cause a bubble to last longer.

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

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

Demonstrate how to tell the age of an egg without having to crack it open.

Discover whether a metal will expand under hot water.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

Find out whether matte or shiny nail polish lasts longer.