#PEMfromhome \\ Drop-In Art Activities
Have you ever wondered about the science behind bubbles? Why do some last a long time and others pop right away? Why does soap form bubbles? The answer: surface tension. Pure water bubbles tend to pop quickly because the surface tension of water is so strong. You can observe surface tension when a cup is filled to the brim and the water forms a dome on top or by the curved edge of a spilled droplet. Water also evaporates quickly, which makes bubbles weaker as they lose their water content. Soapy water makes for great bubbles because it has a lower surface tension and a lower evaporation rate. Experiment with different kinds of bubbles in this project and see which ones last the longest.