Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

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

This science fair project idea examines whether boys and girls differ in reflexes.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Kids are acutely aware of what's "fair" and what's not. Here's a quirky way to teach your first grader the importance of voting and democracy.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

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

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.

In this project, different childproof containers are tested to see how childproof they really are.

This construction paper activity helps your child to assemble a variety of emotions on a face so she can recognize how she and everyone around her is feeling.

Give your child an American history lesson as you create a colorful mini totem pole!

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Create a yarn doll out of a few toothpicks and colorful string with this Guatemalan craft.

Explore African and Asian traditions with this recipe for homemade henna ink!

In this project, a mnemonic is used to test how it increases memory.

Your child can decorate her own set of Russian nesting dolls in this easy felt craft.

Explore the world from your own home by conducting research about other cultures with your 4th grade child.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

Help your fifth grader create an art card that celebrates the enduring values of Passover.

Explore history and prepare for backyard battle with this samurai helmet craft.

Light up the sky with this lotus lantern, a perfect way to explore Buddha Day.