We learned about alternative energy sources and then we got to work building a dam for this engineering challenge. The students were given clay and 10 popsicle sticks. The goal was to build a dam that could hold water on one side of the box. A couple of teams were able to build it strong enough the first time, but most teams had to redesign. Some teams had to redesign a lot because their dam was super complicated. They challenged themselves to do something that was a little harder than what they thought they could do. Way to go, Second Grade!
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