Measure the weather
How to make an Anemometer
A device to measure the speed and direction of the wind you will need:
- Scissors
- Two drinking straws
- 1 egg box
- 1 paper cup
- Sellotape
- Blu-tak ( or a hole punch)
- Pin tack
- A pencil with an eraser
- Make 4 holes in your cup that are opposote eachother and the same distacne from the rim of the cup
- Feed your straws through
- Make another hole in the base of your cup
- Push your pencil (eraser first) through the hole so the eraser sits under the straws
- Push you pin tack through the straws to secrure it to the eraser
- Cut out 4 egg cups to be your wind catchers
- Decorate atleast one differently so you can spot it, it will help you to count turns later
- Make 2 holes ether side of your 4 egg cup wind catchers making sure the holes match up
- Thread the 4 straws through these holes ( you might need to secure these with sellotape if you made your hoels too big)
- Make sure they are all facing the same way so the wind can catch them
- Place your finished Anemometer outside on a windy day. Notice how many times you see your decorated wind catcher cup go around in a minute - Record your results!
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