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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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This project examines whether corked bats truly make a ball travel farther than wooden bats that haven't been altered.
Eighth Grade
Physics
Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).
Eighth Grade
Physics
Science fair project that demonstrates how a rainbow forms, by using water to split white light into its many colors.
Eighth Grade
Physics
Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.
Eighth Grade
Physics
Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.
Eighth Grade
Physics
Science fair project that explores the phenomenon of Non-Newtonian fluids by exerting force on different materials.
Eighth Grade
Physics
Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?
Eighth Grade
Physics
Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.
Eighth Grade
Physics
Science fair project that examines the relationship between the size of a bubble and how quickly it falls. What is the correlation?
Eighth Grade
Physics
Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.
Eighth Grade
Physics
Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.
Eighth Grade
Physics

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