Since the Mars helicopter 'Ingenuity' is still flying, I'll mention a lesson plan I developed abou this amazing feat. The lesson includes info about the layers of Earth's atmosphere, the conditions on Mars, and the engineering decisions needed to develop an aircraft that flies on Mars. The lesson has two versions: a self-paced online version that students can view on their own, and a teacher-led whole-class version. https://flyrussell.com/lesson-mars-helicopter/
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