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

This science fair project idea determines if females or males tend to do better on optical illusion tests and whether certain age groups also do better.

Discover whether the color of text correlates with ease and speed of reading.

This science fair project idea determines whether the hand a person writes with relates to which side they will choose from in a fake taste test.

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

Choose a destination and "race" your way there! This activity is a great for charting progress and motivation.

Research optical illusions and human auras. Understand why the probable cause of perception is mach bands.

This science fair experiment examines the relationship between gender, age, and smiling.

Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

The objective of this science fair project is to assess the benefits of the game system for improving player performance following use.

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

Do people only "hear" what they want to hear? Explore pareidolia and psychoacoustics with this easy science fair project that pits melody against white noise.

This science fair project idea investigates whether body language and heart rate can decipher who's lying and who's not.

Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!