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Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Kids learn about the color rendering index by finding the best lightning for makeup in this fun and original physics science fair project idea.

In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

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.

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.

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.

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

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.

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.

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.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

In this science fair project, students create their own miniature salt flats at home.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.