Water’s Superpower: Surface Tension!

Have you ever tried to see how many drops of water you can fit on a penny before it spills over? It’s a fun way to learn about surface tension — the invisible “skin” that holds water together!

At first, the water stays on the penny, forming a rounded bubble shape. That’s because water molecules like to stick together. This creates a tight “skin” on the surface of the water called surface tension.

As more drops are added, the surface tension stretches — but eventually it can’t hold anymore, and the water spills off the penny.