Bendy Potato Osmosis

One strip becomes firmer, another limp. Ask students to predict what will happen. Compare stiffness/bendiness. Key idea: Water moves across cell membranes toward regions with more dissolved particles. Ask: Why did the same potato become different? Safety and cleanup: Teacher handles cutting; no eating. https://www.google.com/search?q=%22Bendy+Potato+Osmosis%22+science+demonstration+experiment