In this challenge the kids had to build a structure out of straws. They each had the same materials to work with: 20 straws, 2 ft of tape, 2 ft of string, a small ball of clay and 20 straight pins. Then we tested to see which structure would hold the most weight of books. The video shows the winning design. This challenge can be found in the book Sciencewise Book 1 by Dennis Holley from Critical Thinking Books & Software.
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