Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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.

This science fair project idea explores whether talking to a plant will help it grow.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

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

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

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

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

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

This science project idea examines the effect of microwaving on various objects.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

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

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Science fair project that determines whether mass and weight are the same or different.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

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

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.