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

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

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.

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

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.

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

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

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.

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.

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

Determine if gender affects the ability to identify different smells.

This project examines whether people's taste perception is influenced by what they see.

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

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

Learn whether writing things down really makes things easier to remember.

How well can people recall what they have observed. Test your knowledge in this fun experiment.