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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 106 to 120 of 157
In this free science fair project idea, we learn about how reaction speed and reflexes vary between individuals and based on different factors.
Electricity and Magnetism
Middle School
Can electricity produce a magnet?  Do this free science fair project and see how and why electricity can produce a magnet.  A great science project for kids.
Electricity and Magnetism
Elementary School
How can fuses protect electric wires from overheating? In this free science fair project, you can explore and learn how fuses protect wires from heating up.
Electricity and Magnetism
Elementary School
Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!
Electricity and Magnetism
Fourth Grade
Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.
Weather and Climate
Fifth Grade
How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.
Electricity and Magnetism
Third Grade
Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?
Weather and Climate
Third Grade
Can electric current move through water? Do this free science fair project and explore whether water is an electrical conductor.  Great project for kids.
Electricity and Magnetism
Elementary School
This cool electricity project teaches kids how connecting batteries in series vs. parallel circuits can contribute to different levels of voltage and amperage.
Electricity and Magnetism
Eighth Grade
How do you make a battery out of a lemon? Do this free science fair project and learn how acidic fruit such as lemon can act like a battery.
Electricity and Magnetism
Elementary School
What is an electrical conductor? Is aluminum an electrical conductor? Do this free science fair project and explore the qualities of electrical conductors
Electricity and Magnetism
Elementary School
This science fair project investigates which type of light bulbs are the best at producing flattering photographs in both flash and non-flash conditions.
Electricity and Magnetism
Middle School
Explore how wind is produced and get a demonstration on the cooling effect of wind in this breezy science fair project idea.
Weather and Climate
Elementary School
Can you measure the flow of electricity?  In this free science fair project, explore how flow rate of electricity is measured and what determines the speed.
Electricity and Magnetism
Elementary School

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