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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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In this science fair project, you will study the process of osmosis (movement of water through a type of membrane) with potatoes.
Middle School
Easy
Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.
Seventh Grade
Eighth Grade
Science fair project that examines the biodiversity of ant populations in various locations.
Ninth Grade
Tenth Grade
Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.
Fourth Grade
Fifth Grade
Science fair project that observes hemoglobin synthesis in the small crustacean species Daphnia Magna.
Ninth Grade
Tenth Grade
A great science fair project on solar oven design that helps kids learn about solar power and solar heating.
Seventh Grade
Eighth Grade
Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.
Fifth Grade
Sixth Grade
Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.
Fifth Grade
Sixth Grade
Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?
Seventh Grade
Eighth Grade
Select a study area that has a variety of plant life and learn about its ecosystem in this science fair project.
Middle School
High School
This experiment explores the most common colors that appear among a sample of crossbred guppies.
Middle School
Life Science
This science fair project teaches students about wilting and browning of salad greens.
Kindergarten
Elementary School
This science fair project examines how seeds hitchhike on animals and clothing.
Elementary School
Second Grade
In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.
Kindergarten
Elementary School

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