In this activity, learners are challenged to design and construct a windmill to harness the power of wind. Learners act as design engineers, focusing on the testing and redesign parts of the engineering design process. They learn about independent variables and data-driven design by testing various blade designs and configurations and placing them in a wind stream.
Safety note: When testing, keep the learners behind the windmill since blades may fly off. [Activity is publicly available through a web crawler capture on Archive.org.]