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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 project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.
Sixth Grade
Elementary School
Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.
Ninth Grade
Seventh Grade
This experiment determines the distribution of darts around a bulls eye to simulate the probability of an electron's location in its own cloud of electrons.
Ninth Grade
Middle School
Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?
Ninth Grade
Eighth Grade
Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.
Ninth Grade
Eighth Grade
Science fair project which determines which colors of light allow plants to produce the most chlorophyll. How are color and light related to each other?
Ninth Grade
Seventh Grade
Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?
Sixth Grade
Seventh Grade
This project examines how temperature affects the volume of gas in balloons.
Sixth Grade
Middle School
This project compares the national anthems of several different countries to determine if there is a correlation between tempo and a country's latitude.
Sixth Grade
Middle School

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