Interleaved Books Won't Pull Apart

Loose pages become incredibly hard to separate. Ask students to predict what will happen. Interleave pages, then try pulling books apart. Key idea: Many small friction forces add together. Ask: How can paper hold this strongly with no glue? Safety and cleanup: No sudden jerking near faces. https://www.google.com/search?q=%22Interleaved+Books+Won%27t+Pull+Apart%22+science+demonstration+experiment