Windicators

="Windicators" =

Go out side and look for indicators to tell you what direction the wind is coming from. Draw a picture including as many of these indicators as you can



Weather Balloon Game

 * Pupils in teams
 * First pupil races 20m and collects a balloon, then races back to the start.
 * Pupil blows up the balloon then must pop the balloon without using their hands
 * When the balloon is popped the 2nd pupil may go
 * Each balloon has a word.
 * The first group to complete the sentence wins

Where can you look for information about the direction and strength of the wind?


=The Beaufort Scale =

The **Beaufort scale** is a [|scale] for measuring [|wind] [|speeds]. It is based on [|observation] rather than accurate measurement. It is the most widely used system to measure wind speed today. The scale was developed in 1805 by Sir [|Francis Beaufort]. There are twelve levels, plus 0 for "no wind". From 1946 to 1970, there were also Beaufort levels 13 to 17. All of them were labelled as //Hurricane//. Because they were only used in special cases, they are no longer in use internationally. [|China] and [|Taiwan] still use them, because they often have [|typhoons]. The wave heights given are for waves on the open [|ocean], not near the shore. Reference-[| http://simple.wikipedia.org/wiki/Beaufort_scale]



Cut and paste activity
Match the Scale with the indicators