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Eighth Grade Physical Science - Science Fair Project Ideas

Great selection of eighth grade science fair project ideas. These science fair projects can help you find eighth grade level ideas for your science fair.

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This project examines whether corked bats truly make a ball travel farther than wooden bats that haven't been altered.
Does it Pay to Cheat in Baseball?
Eighth Grade
Physical Science
Using a nine-volt battery to create an electrical field around a nail, students make their own electromagnet.
DIY Electromagnet
Eighth Grade
Physics
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.
Natural Herbicide vs. Commercial Herbicide
Eighth Grade
Physical Science
This project examines whether more expensive golf balls translate into better results on the golf course.
Are Pricier Golf Balls Better?
Eighth Grade
Physical Science
This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.
Which Decaffeinated Tea Type Contains the Least Amount of Caffeine?
Eighth Grade
Physical Science
This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.
How to Create a Visual Doppler
Eighth Grade
Physics
Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.
Does Tea Stain your Teeth?
Eighth Grade
Chemistry
Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.
Homemade Vacuum Chamber
Eighth Grade
Physics
Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.
How Much Oxygen is in the Air?
Eighth Grade
Chemistry
Science fair project which identifies the most effective insulator that you could use to make a winter coat by comparing how well cloth and cotton trap heat.
What is the Most Effective Winter Coat Insulation?
Eighth Grade
Physics
Science fair project which tests which antacids are most potent by measuring how well they neutralize the acid in lemon juice.
Antacid Potentcy
Eighth Grade
Chemistry
Examine the relationship between air pressure and the perceived loudness of sounds. Scream and whisper with and without a megaphone, contrast results.
Air & Sound
Eighth Grade
Physical Science
In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.
Symbiosis: Plants, Nitrogen, and Bacteria
Eighth Grade
Chemistry
This science fair project measures two teas to see if there a difference in infusion concentration based on the way the teas are packaged.
How Does Loose Rolled Tea Compare to Tea in Teabags?
Eighth Grade
Physical Science
This experiment examines whether storing your orange juice at different temperatures affects its acidity.
Does Storage Temperature Affect Orange Juice's Acidity?
Eighth Grade
Physical Science

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