Class 4B is building a wind-powered car in science class., , The wind pushes the car forward across the floor., , Our team tested the wheels, but they did not spin well at first., , We changed the design so the car could move faster., , Some cars turned to the side because the wind hit them unevenly., , At the end of the week, we will race our cars to see which one is the fastest., .

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Obnovit automatické uložení: ?