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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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Showing 106 to 120 of 284
Study the physical and chemical changes that make hair curl or straighten. Study ingredients, function of chemicals like thioglycolic acid.
Chemistry
Ninth Grade
Find out if most people can distinguish the difference between tones on different instruments.
Physical Science
Seventh Grade
Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.
Physics
Seventh Grade
Explore the properties of light and color using photographic filters. Take pictures of color spectrum, compare results of different filters.
Physical Science
Ninth Grade
Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?
Physics
Sixth Grade
This free science fair project idea shows you how parallax decreases as distance from the object increases.
High School
Physics
Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.
Chemistry
Seventh Grade
Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?
Physics
Eighth Grade
Science fair project that examines oxidation, reduction and chemical indicators by testing for the presence of the iodide in salt.
Chemistry
Sixth Grade
Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.
Chemistry
Seventh Grade
Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.
Physics
Tenth Grade
Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.
High School
Physical Science
Look for correlation between pH values of commercial soaps and detergents and manufacturer claims about eye irritation hazards.
High School
Physical Science

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