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

This science fair project determines which type of physical activity most improves memory.

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.

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

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 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.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

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.

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

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

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

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

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

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.

The objective of this science fair project is to investigate salt water density.