Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

Slip some science into storm watching with a homemade rain gauge!

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

In this fun experiment, we'll find out how color affects heat absorption!

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

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.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

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

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Discover how and which salt melts ice the quickest.

This science fair project idea explores whether white light can be separated into different colors.

Find out whether packaged seeds actually do expire in this new science fair project idea.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

This science experiment has students test whether a snail moves faster on concrete or dirt.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

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

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

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

In this science fair project, students make their own rain gauge to measure rainfall.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.