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Engineering Inquiry - How many pennies can your raft hold before sinking

Ms.Ross' fifth graders have been studying engineering. Creating play-doh rafts helped them see how failure leads engineers to perfect their creations. Students knew that once their raft sank, it was time to go back to the drawing board and rework their design. They will have a second go this next week to see whose raft holds the most pennies before going underwater.