| $ Store Activity
Name: |
Thread Count / Breaking Point
|
| Concepts / Skills
addressed: |
measurement, graphing,
prediction, slope
|
| Approximate Grade
Range: |
4th - 8th
|
| Materials: |
Thread from a sewing kit,
container for holding large washers, large washers, [optional: fish
scale (weighing instrument)]
|
| The General Idea:
|
Students investigate the weight
(number
of large steel washers) that can be borne by different numbers of
threads taken from a sewing kit. The results are graphed and
students
are asked to predict the number of washers it would take to break 10
threads.
|
Extensions:
|
Students may want to investigate
whether different colors of threads are stronger than others.
|
| Links: |
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Author:
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