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Science Fair Project Ideas

Education.com has assembled a vast collection of science fair project ideas written by science teachers, professional scientists, and educational consultants on popular science fair topics ranging from physics and chemistry to biology and even sociology. We offer free science fair ideas suitable for every grade level, be it preschool, kindergarten, elementary school, middle school, or high school. Check the boxes in the sidebar to filter your results, or use the search bar to find that perfect science fair project or experiment your child will be sure to love.

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This experiment investigates whether there are certain sounds that affect men and women differently
Psychology and Sociology
High School
In this science fair project, students evaluate test subjects to determine if certain personality traits are more common in frequent users of social media.
Psychology and Sociology
High School
This experiment will investigate whether reward or punishment is more apt to motivate people.
Psychology and Sociology
High School
This project examines the phenomenon of using a mirror to trick a person's brain into experiencing sensations in body parts not actually affected.
Psychology and Sociology
High School
This science fair project compares the abilities of men and women to understand subtle communication through body language.
Psychology and Sociology
High School
In this science fair project, students  evaluate if the phases of the moon affect the way people feel.
Psychology and Sociology
Middle School
In this science fair project, students investigate how different colors influence appetite.
Psychology and Sociology
Eighth Grade
Learn about our cognitive capacity of attention and to learn about factors that influence attention.
Psychology and Sociology
Middle School
Have you ever wondered how many numbers most people can memorize? Test your friends to find out!
Psychology and Sociology
Third Grade
It's the day before the test, and you still have a ton to memorize! Sound familiar? Test memorizing techniques to help yourself out next time.
Psychology and Sociology
Elementary School
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.
Psychology and Sociology
Kindergarten
Determine which factors promote the greatest  memory interference. Administer test, time how long it takes subjects to complete different tasks.
Psychology and Sociology
High School
Do human lie detectors exist? Charge up your powers of observation to see if you can tell a lie from the truth.
Psychology and Sociology
Elementary School
Test the idea that people who wear glasses tend to be more educated. True or false?
Psychology and Sociology
Sixth Grade

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