And so when we try to apply a force onto the surface of that liquid, because of these relatively strong intermolecular bonds, and because the molecules on the surface don't actually move too much, those molecules are able to actually stand their ground when a force is applied onto that surface. So surface tension means that it is relatively difficult to break the bonds that exist on the surface of that liquid. And this implies that the bonds on the surface of our water are strong and the water molecules on the surface don't actually move too much and so they can stand their ground when a force is applied on them. So if we zoom in on the surface of the water in diagram A, we basically get the following picture. So let's compare the water molecules found deep inside that droplet and the water molecules found on the surface. So deep inside our water droplet, these molecules can easily move around.