In this activity (page 1 of PDF), learners will construct an air cannon by cutting a hole in the bottom of a bucket and stretching a garbage bag over the other end. Then, they aim the cannon at a paper target and try to knock it over by giving the plastic bag a good whack. Learners also experiment with hole size to make the cannon more effective. Relates to the linked video, DragonflyTV: Forecasting.
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