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Title: A wind vane tells you which way the wind is blowing - PowerPoint PPT Presentation
Description: I m going to show you how to make a wind vane! What does a wind vane do? A wind vane tells you which way the wind is blowing First you need two pieces of card. – PowerPoint PPT presentation
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PPT URL: http://www.ourplanet.org.uk/docs/PowerPoint%20Making%20a%20wind%20vane.ppt
