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High School Science Fair Projects

Need a science fair project that's fun, engaging, and appropriately rigorous for a high school science fair? Education.com has assembled a rich collection of high school science fair projects and high school science fair project ideas written by our team of professional scientists, science teachers, and educational consultants. We offer free high school science experiments on every science fair topic, including physics, chemistry, biology, engineering, and even psychology. Check the boxes in the sidebar to filter your results, or use the search bar to find a winning idea for your upcoming science fair. Hundreds of good science fair projects are only a click away.

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Science fair project in which you will graft branches from different fruit tree onto a root stalk.
Eighth Grade
Ninth Grade
What happens when 'coffee-addicts' miss coffee for 1 day? Find out in this science fair project idea!
Sixth Grade
Seventh Grade
Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.
High School
Elementary School
Examine the impact of insecticides on plant growth.
Sixth Grade
Seventh Grade
Science fair project which compares the rates of photosynthesis for various light sources. Which type of light will be best for photosynthesis and why?
Seventh Grade
Eighth Grade
Science fair project which compares the quantity of cells in the different phases of mitosis by observing the cells of an onion root tip.
Ninth Grade
Tenth 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
Use a bomb calorimeter to measure and calculate the amount of energy (calories) within various foods. ignite food samples, calculate change in temperature.
Ninth Grade
Tenth Grade
Explore the properties of light and color using photographic filters. Take pictures of color spectrum, compare results of different filters.
Ninth Grade
Tenth Grade
Demonstrate Newton's laws of motion by examining the relationship between mass, force, and acceleration during free-fall.
Eleventh Grade
Twelfth Grade

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