| Purpose: | To use knowledge of a clock face to determine wind speed.
To use observation skills in gathering data to interpret the Beaufort
Scale. |
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| Season: | All |
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| Materials: | Pieces of thread
Several different weights of string
Pencils
Paper
Clipboards |
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| Procedure: |
- Hold a piece of thread at arm's length and pretend that it is the
hand of a clock. If it hangs vertically at six o'clock, there's no
wind. If it moves to seven, a light breeze may be blowing. If it
starts at nine o'clock, use one of the heavier pieces of string.
- Record the results in several different locations.
- Use the Beaufort Scale to determine wind force.
- Compare data from various locations.
- What conclusion can you make?
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| Questions: | How effective is a string measuring device for determining wind strength. |
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