11 Easy Award Winning Science Fair Projects for 9th Grade

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2. Do multiple rotors enhance the electrical output of windmills?

Field: engineering, renewable energy

The most common wind turbine models have three blades and a single rotor. But is that the best solution and in which circumstances? In this project, you will experiment with the axis, number, position and all other physical properties of windmill turbines in order to see which set gives the best results.

Easy Award Winning Science Fair Projects for 9th Grade

Pixabay/Public Domain

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