In second grade, we studied buoyancy and what makes things float or sink. The students followed the Engineering Design Process to complete this task like always. They each drew out their own plans and then got together as a team to decide on the final plan. Once they all agreed and signed the plan to show their consent, they were given their supplies. For this challenge, they got 10 inches of plastic cling wrap, 10 straws, and tape. Their goal was to build a boat that floated and held 10 pennies without sinking. Once they were done building, they set out for the testing station. Some passed the float test, but sank during the penny test. If they failed either part of the test, they went back into their teams to discuss what went wrong and what to do to solve the issue. They made adjustments to their boat and tried again. They had such an incredible showing of tenacity! They might have gotten frustrated, but they never let it interfere with their progress. They did not give up! I'm so proud of these engineers!
The process of building:
The big test!
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