Children from 3rd grade made a handmade anemometer. They used a very simple material, here you are if you want to repeat it at home:
– 4 paper cups
– 2 sticks or cardboard.
– 1 pencil with eraser.
– A piece of clay
– 1 needle.
This is the result.
[vimeo]https://vimeo.com/156547538[/vimeo]