5th Graders Take on Third Engineering Challenge

5th graders have been testing the 'bridges' they designed in their third engineering challenge with teacher Cindy Cartwright, the Platform Bridge Challenge. Pairs of engineers worked together to create a paper bridge that would span the distance between two stacks of, what else, National Geographic magazines. Testing was accomplished by placing individual pennies on each bridge to see how many the structure could hold before collapsing. 
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