Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

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!

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

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This science fair project idea provides evidence that air is everywhere and takes up space.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science project allows students to study the psychology of happiness.

This science fair project idea experiments with spinning color wheels and optical illusions.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

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

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

Is your child a nature nut with an eye for creative, green-friendly projects? Introduce them to this amazing DIY bird feeder!

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

This science fair project idea explores the different properties & interactions of sugar molecules.