A backlit, closeup photo of a drop of water as it hits a surface, viewed from below. The drop appears as large circle covering most of the photo, with smaller droplets scattering away from it.
An image showing three sets of water ball-and-stick models. In the second set, a few of the water molecules have turned into differently coloured radicals or cations sticking close together; in the third set these two have moved away from each other