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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 examine how the flow rate in a stream affects the growth of aquatic plants.
Eighth Grade
Ecology
Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.
Eighth Grade
Ecology
Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.
Eighth Grade
Ecology
This project examines the concentration of dissolved oxygen in water, with and without oil.
Eighth Grade
Ecology
A great science fair project on solar oven design that helps kids learn about solar power and solar heating.
Eighth Grade
Ecology

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