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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 31 to 45 of 99
Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?
Weather and Climate
Second Grade
Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?
Weather and Climate
Second Grade
In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.
Weather and Climate
Middle School
In this science fair project, you'll make a 'ghost' appear in a test tube, and learn about what happens when hot water and cold water interact.
Weather and Climate
Elementary School
Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.
Weather and Climate
Third Grade
Find out whether people within a family tend to have matching fingerprints.
Genetics
Seventh Grade
How fast is the wind blowing? This science experiment provides step-by-step instructions to help you answer this question.
Weather and Climate
Middle School
Science fair project that examines condensation and the conditions needed in order for dew to form.
Weather and Climate
Second Grade
This science fair project idea examines eye color genetics and the role it plays in eye color inheritance.
Genetics
Tenth Grade
Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.
Weather and Climate
Ninth Grade
Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.
Weather and Climate
Second Grade
Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.
Weather and Climate
Sixth Grade
Explore this cool science fair project idea to have fun with colorful leaves and to  understand the color-changing process in deciduous leaves.
Weather and Climate
Middle School
Find a science fair project idea on rain forest canopy and explore the life that exists under the umbrella like covering over the rain forests.
Weather and Climate
Middle School

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