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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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This science fair project aims to examine the nature of pi and analyze other properties and values related to circles, such as radius, diameter
High School
Middle School
Devise an argument for or against the possibility of resurrectin extinct species through DNA manipulation. Analyze data, report findings.
High School
Medium
Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.
High School
Medium
The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.
Eleventh Grade
Astronomy
In this experiment, you experiment with laser jet toner, a magnetic fluid, as it moves, bubbles, and forms unique shapes.
High School
Middle School
Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.
High School
Medium
This science fair project idea examines which is the best way to get rid of water stains (stains caused by just water) on fabric.
High School
Middle School
Investigate which substances are most effective at removing salt from water.
Ninth Grade
Chemistry
Research long-term effects and draft a questionnaire about frequency of marijuana use and average annual income. Interpret findings in a detailed report
High School
Medium
Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.
Ninth Grade
Tenth Grade
This experiment determines the distribution of darts around a bulls eye to simulate the probability of an electron's location in its own cloud of electrons.
High School
Middle School
This science fair project idea outlines the principles and techniques behind paper batteries.
High School
Engineering

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