After a brieftalk about the historyof the windand sun:
we started tothink how we couldmeasure the windandwe thendecided to buildan instrumentfor measuringwind:an anemometer.
device that measuresthe speed
at whichthe wind blows.As such, it is one of the mostimportant instrumentsin aweather station. The device we builda modelof arealanemometerthat will give us an approximation of how fast the wind is blowing.
cut the rim of the plastic cup to make it lighter. Then wepaintedthe outsideofone of the cupswithafelt pen.
We crossed the cardboard strips so they make a plus(+) sign. and stapled them
We used a ruler and a pencil and drew lines from the outside corners of where
the cardboard strips came together to the opposite corners. Where the pencil
lines crossed we found the exact middle of the cross.
We pushed a drawing pin through the centre of the cardboard and then we attached the cardboard cross with the cups on it to the eraser point of a pencil.
We made sure the cardboard was spinning around freely on the
pin by blowing on it.
We went toour playgroundandeach grouptookthieranemometer. They placed it in a openspace away fromany walls.
For a minutewe countedthe numberof lapsthat our anemometerturned.
It wasvery funny!
Professora: Carla Jorge
Escola EB1 Sofia de Carvalho - Algés
Agrupamento de Escolas de Miraflores