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In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

This experiment evaluates whether a person's eye color affects their ability to identify colors in low light.

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

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

Does nail polish really slow the growth of nails? Explore in this science fair project idea.

In this science fair project, students will learn how to calculate the formula for the thermal decomposition of potassium chlorate.

How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

In this experiment a spectrometer is used to analyze the light emitted by burning ion solutions.

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

This experiment investigate whether children in different age groups learn better from a computer program or a human teacher.

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

In this science fair project, students test how objects float and sink in liquids of different densities.

This science fair project idea investigates the relationship between memory and age.

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

This classic children's game demonstrates how sound travels through air vs. through a solid.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

This science fair project idea examines the differences between bottle water, filtered water, and tap water.

Check out this cool science fair project idea to learn why it is important for kids to eat healthy foods like fresh fruits and vegetables.

This project compares different liquids and the freezing, melting and boiling points of liquids.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.