Wind, Storms and Cyclones - • Make a wind vane, anemometer & a wind sock and understand:
→How to calculate the speed of the wind. →How to know the direction of the wind http://www.butterflyfields.com/product/wind-stroms-and-cyclones/ |
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Wind, Storms and Cyclones - • Make a wind vane, anemometer & a wind sock and understand:
→How to calculate the speed of the wind. →How to know the direction of the wind http://www.butterflyfields.com/product/wind-stroms-and-cyclones/ |
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