Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

This science fair project idea demonstrates the process of land erosion.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

Science fair project that determines whether moths are attracted to one color of light more than others.

This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

In this project, different brands of microwave popcorn are tested and compared.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Help your middle schooler improve his observation skills by playing this simple observation and spatial memorization game.

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

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

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

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

This interactive project invites science fair-goers to participate in examination and recording to demonstrate the importance of firsthand observation.

This science project examines the history of earthquakes and what we can do to prevent future disasters.

Make your own greenhouse - out of a balloon! Your child will learn how greenhouses work as they plant radish seeds and watch them grow.

This science fair project idea demonstrates sonar mapping of the ocean floor.

This science fair project idea identifies trees using a dichotomous key.

Learn all about balance and motion as your child designs a corn maze!

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

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 focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

Your preschooler will engage their senses by making a scented pumpkin to decorate your house.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

Science fair project that compares tap water and bottled water for the presence of common impurities.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

This science fair project idea teaches what wildlife rehabilitators do and about the process of wildlife rehabilitation.