Explanation Content

DIY Anemometer | NCERT Class 7

Science · Class 7

Fix arrows made from card sheet on the two ends of given straw. Now insert a pin in the centre of the straw and insert the pin at the back of a pencil. Now fix the pencil in a plastic bottle. Mark the directions at the base of the bottle - North, South, East, West. Use the model as wind vane. Now insert another straw and use it as anemometer.