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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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Examine the influence of the phase of the moon on moisture capillarity in garden soil. Measure and record the depth at which water is first detected.
Middle School
Hard
Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.
Elementary School
Middle School
In this 'paper and pen' science fair experiment, students will research the difference between standard time and astronomical mean time.
Middle School
Seventh Grade
This science fair project idea produces consumable fresh water from salt water through desalination.
Elementary School
Easy
Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?
Sixth Grade
Seventh Grade
In this experiment you will use plastic and magnets to test your local soil composition.
Sixth Grade
Easy
Science fair project that examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.
Fifth Grade
Sixth Grade
This free science fair project explores the 'dirty' relationship between the presence of organic material in soil and water absorbency.
Middle School
Medium
Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?
Sixth Grade
Eighth Grade

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