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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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Showing 151 to 165 of 188
Raise fish in different sized aquariums for 8 weeks. Document growth rate. Determine optimal volume for fish growth.
Oceans
Middle School
This science fair project idea investigates the relationship between memory and age.
Psychology and Sociology
Middle School
This science fair project idea investigates whether body language and heart rate can decipher who's lying and who's not.
Psychology and Sociology
Middle School
This science fair experiment examines the relationship between gender, age, and smiling.
Psychology and Sociology
Middle School
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!
Psychology and Sociology
Seventh Grade
Will people perceive your intelligence differently depending on your hair color? Find out in this science fair project idea!
Psychology and Sociology
Sixth Grade
This science fair project idea tests the efficiency of short term memory.
Psychology and Sociology
Middle School
The objective of this science fair project is to determine the rate at which participants can respond to different patterns.
Psychology and Sociology
Tenth Grade
Science fair project which determines whether people are more likely to follow rules if they are easy to understand.
Psychology and Sociology
Fifth Grade
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.
Psychology and Sociology
Seventh Grade
Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.
Psychology and Sociology
Fifth Grade
Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.
Psychology and Sociology
Elementary School
Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.
Psychology and Sociology
High School
What happens when 'coffee-addicts' miss coffee for 1 day? Find out in this science fair project idea!
Psychology and Sociology
Sixth Grade

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