Key concepts Physics Simple machines Wedges Air pressure Introduction Looking for a cool and surprising project to show to your friends? Give this activity a stab! Take a potato and a straw ...

Simple Machines: Wedge. 03/04/2019 | 26m 46s Video has Closed Captions | CC. Splitting logs, building canoes, and "uplifting" wedges! Splitting logs, building canoes, and “uplif ...