Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

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

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Help your own young scientist tackle the wonders of static electricity from the comfort of his own home!

This science fair project idea explores whether color affects a person's emotional state.

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

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

Learn with makes water molecules work with this fun and easy science activity!

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.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

This project explores ways to prevent static electrical shocks.

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

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Construct batteries that make electricity from fruits with this fun science fair project.

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

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

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.

By using static electricity generated from their body, a child can cause a small fluorescent lamp bulb to light up!

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.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!