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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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Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.
Eighth Grade
Fifth Grade
Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.
Eighth Grade
Fourth Grade
Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.
Eighth Grade
Medium
Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.
Eighth Grade
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?
Eighth Grade
Sixth 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?
Eighth Grade
Seventh Grade
Science fair project that studies how perfumes are made in order to determine how we can capture a scent.
Eighth Grade
Easy
Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.
Eighth Grade
Sixth Grade
Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.
Eighth Grade
Fifth Grade
Science fair project that examines the effects of soap on the surface tension of water. How does soap affect the surface tension of water?
Eighth Grade
Ninth Grade
Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.
Eighth Grade
Sixth Grade
Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.
Eighth Grade
Fifth Grade

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