St. Pat's Bridge Building

5 min. to explain
15 min. to build and test 1st bridge
10 min. to build and test 2nd bridge
10 min. to build and test 3rd bridge
10 min. to discuss with group

How will you use your pennies to make the bridge structure sturdy and stable? Your bridge must stand for at least 10 seconds.

Sketch your first bridge in your science journal. 
Was your bridge successful?
Which design worked the best?
Which design flopped?
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