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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 1 to 15 of 206
This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.
Psychology and Sociology
Fourth Grade
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!
Psychology and Sociology
Eighth Grade
For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.
Electricity and Magnetism
Second Grade
The objective of this experiment is to evaluate whether funny advertisements are more or less effective than serious advertisements.
Psychology and Sociology
Tenth Grade
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.
Psychology and Sociology
Eighth Grade
What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!
Electricity and Magnetism
Sixth Grade
This science fair project tests test whether the presence of spell check has changed standards for spelling.
Psychology and Sociology
Elementary School
In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.
Electricity and Magnetism
Sixth Grade
This cool music science fair project idea has kids determine the effect of music on memory. Can music improve our cognitive abilities? Why or why not?
Psychology and Sociology
Middle School
This project examines the common belief that with increasing age, people are less willing to adopt new technology.
Psychology and Sociology
Fourth Grade
High school students learn about resistance, resistivity, and if copper is the best metal conductor in this great physics science fair project idea.
Electricity and Magnetism
Tenth Grade
By dropping a magnet through a copper tube, kids observe the cool (and bizarre) braking effect produced by the eddy currents predicted by Lenz's law.
Electricity and Magnetism
Seventh Grade
Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.
Electricity and Magnetism
Ninth Grade
This science fair project idea determines whether volunteers remember more information presented orally or visually or kinesthetically.
Psychology and Sociology
Middle School

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