Which tools you can use to test the strength of the webs (e.g. a hairdryer as wind )
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Introduction
Have you ever ridden your bike into a strong wind? If so, did it feel really tough? How does this compare with how you feel when the wind is pushing against your back? Does that make you feel ready for the Tour de France? In this science activity you will explore how wind-powered devices, such as wind turbines and pinwheels, also react in different ways to wind direction.
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