In this science fair project, students evaluate if astrological signs provide clues about people's personalities.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

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

Will people perceive your intelligence differently depending on your hair color? Find out in this science fair project idea!

This science fair project idea addresses tempo, and whether faster or slower music works better as a study aid.

This science fair project compares the abilities of men and women to understand subtle communication through body language.

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

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

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 determines whether volunteers remember more information presented orally or visually or kinesthetically.

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

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

This science fair project idea determines whether the older population prefers darker, duller colors rather than bright and lush colors.

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

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

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

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.

Check out this cool science fair project idea to explore short and long term memory and whether there is gender differences in memory.

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

This science fair project idea provide quantitative data about how well the use of ASL ( American Sign Language) works in communicating with babies.

This science fair project idea explores if people with cool skin tones prefer cool colors and people with warm skin tones prefer warm colors.

This middle school science fair project evaluates test subjectsâ ability to determine what a person is feeling by reading their facial microexpressions.

This science fair project idea examines whether music has an effect on a person's ability to complete a simple task that requires concentration.

In this science fair project, students evaluate test subjects to determine if certain personality traits are more common in frequent users of social media.

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

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

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

Science fair project in which you will stage an election campaign to determine whether people are more swayed by a positive ad or negative ad.

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

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.