Recording the wind

This task is about reading the Beaufort scale of wind speed.
Beaufort Scale of Wind Speed 
Force number Wind km/h Description Visual Evidence
0 Under 1 calm Smoke rises vertically.
1 1-5 light air Smoke shows wind direction.
2 6-11 light breeze Leaves rustle, wind felt on face.
3 12-19 gentle breeze Small twigs move.
4 20-28 moderate breeze Raises dust and paper, small branches move.
5 29-38 fresh breeze Small trees sway.
6 39-49 strong breeze Large branches move, whistling in telephone wires.
7 50-61 moderate gale Large trees move.
8 62-74 gale Twigs break from trees, walking is difficult.
9 75-88 strong gale Tiles blow off roofs.
10 89-101 storm Trees and overhead wires blow down.
11 102-120 violent storm Widespread damage.
12 over 120 hurricane Extreme damage.

Question 2Change answer

a)  Tanu kept a diary describing the wind.  Select the Force Number from the Beaufort Scale to match his descriptions.
Day Diary Entry Force Number
Monday It was a bit windy. We laughed at Paul when his chippie packet and postcard almost blew away!
Tuesday It was threatening to rain and even large branches of the trees were swaying. The leaves were blowing around.
Wednesday Auntie Sue's glasshouse was broken by a falling tree. It was scary!
Thursday The wind was calming down so we decided to make kites, but the wind was still too strong. It was difficult to walk around, even after lunch!
Friday The wind had almost gone. You could feel the wind on you, but it was too calm to fly kites.

Question 1Change answer

b)  Why is it useful to have scales like the Beaufort Scale of Wind Speed?
     
Published on https://newzealandcurriculum.tahurangi.education.govt.nz