Eighth Grade 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.

Showing 31 to 45 of 267

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
Fourth Grade

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

Can You Cook Using Only Sunlight?

Eighth Grade
Middle School

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

Substrate City: What Household Objects Form the Best Crystals?

Eighth Grade
Elementary School

This project explores whether people's choice of a 'random' number is not as random as it seems.

17: The Most Popular Random Number

Eighth Grade
Elementary School

This project examines whether people who are frequent users of Facebook feel less or more lonely than infrequent Facebook-users.

Are Frequent Facebook Users Less or More Lonely?

Eighth Grade
Middle School

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
Middle School

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
Middle School

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

Measuring Heart Rate with Doppler Ultrasound

Eighth Grade
Middle School

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

Does Tea Stain your Teeth?

Eighth Grade
Sixth Grade

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
Sixth Grade

This project will explore whether music influences physical endurance.

Can Music Give You Energy?

Eighth Grade
Middle School

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

What is the Best Way to Disinfect a Toothbrush?

Eighth Grade
Middle School

This project examines whether more expensive golf balls translate into better results on the golf course.

Are Pricier Golf Balls Better?

Eighth Grade
Middle School

In this science fair project, students find out how color affects how hot something gets.

Do Some Colors Create More Heat than Others?

Eighth Grade
Third Grade

This project explores whether the tempo of the background music we hear in a businesses is important to the environment and how customers move.

The Music Behind Business: Does Tempo Affect Customer Behavior?

Eighth Grade
Middle School

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Eighth Grade Science Fair Project Ideas

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