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Eighth Grade Science Fair Project Ideas

Finding eighth grade science fair project ideas can seem like a daunting task. For their 8th grade science fair projects, kids may be expected to employ more rigorous scientific controls, apply statistical analysis to their results, and graph their data. Science fair topics for 8th grade also tend to encourage students to engage in more independent inquiry by conducting original research. To this end, Education.com has put together an excellent collection of enlightening and appropriately rigorous 8th grade science fair project ideas written by our talented team of educational consultants, science teachers, and professional research and laboratory scientists. Use these for your 8th grader's upcoming science fair, or feel free to browse our collection simply to find fun and enriching 8th grade science projects and experiments to use as class projects or extra credit.

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In this science fair project, students investigate how different colors influence appetite.
Eighth Grade
Psychology and Sociology
In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.
Eighth Grade
Middle School
Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).
Eighth Grade
Middle School
Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.
Eighth Grade
Seventh Grade
This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.
Eighth Grade
Middle School
In this experiment you will evaluate whether praise improves athletic performance.
Eighth Grade
Middle School
Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.
Eighth Grade
Sixth Grade
In this experiment, you will find out how human error can cause faults in any science task. This includes experiments conducted by famous scientists also.
Eighth Grade
High School

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