This project explores if people more easily distinguish between faces of people of their own race or ethnicity compared to those of other races or ethnicities.

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

The objective of this science fair project it to determine whether adding ethanol alcohol to gasoline slows the run time of a motor.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

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

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

This experiment explores whether caffeine improves athletic performance.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

In this science fair project, students investigate how different colors influence appetite.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Science fair project idea helps conceptualize probability. Compare probabilities and outcomes of cards drawn from a standard playing deck.

Discover whether people can distinguish what a person looks like just by listening to their voice.

Science fair project that examines the biodiversity of ant populations in various locations.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Engineers in training can get started with this simple wheel-and-axle construction activity.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Celebrate autumn with a seasonal bash. Welcome the fall with a festive party for your little one and her friends, full of crafts, snacks and fun games.

Test whether spot magnets can help improve the symptoms of an injury.

Use the textures found in nature to create your own stationery! This fun, outdoor activity will no doubt inspire your child's creative side.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

In this CD hovercraft science project, students will construct their own DIY hovercraft.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!