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Wind

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Wind What is Wind? Wind Wind is moving air. Wind moves at different speeds. Wind can move slowly. Wind can move very fast. Wind can blow gently. – PowerPoint PPT presentation

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Title: Wind


1
Wind
2
What is Wind?
3
Wind
  • Wind is moving air.
  • Wind moves at different speeds.
  • Wind can move slowly.
  • Wind can move very fast.
  • Wind can blow gently.
  • Wind can blow in strong gusts.

4
Wind can be described.
  • We describe the wind as calm when there is little
    to no air movement.
  • A windsock (a tool to measure wind strength and
    direction) will hang loosely by the pole.

5
Wind can be described.
  • We describe the wind as windy when leaves and
    twigs move around on the ground, small tree
    branches move, and a windsock or flag extend out
    from the pole.

6
Wind can be measured and recorded.
  • Wind speeds are based on the descriptions of
    winds in a scale called the Beaufort Scale.
  • Wind speed is classified and recorded.
  • Some words to describe wind are
  • Calm
  • Light breeze
  • Strong breeze
  • Gale
  • Storm
  • Hurricane

7
Calm Light breeze
Strong breeze Gale
Storm Hurricane
8
Wind blows in different directions.
  • Wind can blows in different directions.
  • A weathervane, or windvane, indicates the
    direction from which the wind is blowing.
  • You can see weathervanes on the tops of houses or
    buildings.

9
Measuring Wind
Wind can be measured with The Beaufort Scale An
anemometer A wind sock A weather vane By your
observations
10
So Wind is moving air. It moves in different
directions. It can be described. It can be
measured. It is an important part of our weather.
11
  • How would you describe the wind today?
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