How many pennies will your bridge hold? - Tech Learning

How many pennies will your bridge hold?

This activity provides instructions for building bridges using file cards and then measuring their strength in pennyweights.  You may find that a file card bridge can hold more pennies than you'd think Using file cards, you can make two of
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This activity provides instructions for building bridges using file cards and then measuring their strength in pennyweights. You may find that a file-card bridge can hold more pennies than you'd think! Using file cards, you can make two of the three (beam and arch) different kinds of bridges.

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