Second Grade Engineers build bridges in Science Lab

In Science Lab,second graders worked in teams as engineers to design bridges that would meet certain criteria. Their bridges must span 6 inches and be 3 inches wide, and they must only use two sheets of paper in their construction. They tested out their designs using stacked pennies on the bridge until it collapsed. they observed and redesigned their bridges to make them stronger.img_5499img_5498img_5497img_5495-1ur