Colour 32 portrays a drop of Brisbane River water. This project investigates how to interpret scientific images made by the Scanning Electron Microscope (SEM) of microscale drops of water after evaporation and thus turns to scientific photography as an art form. Exploring the idea of 'interactivity' for my project, I developed an algorithm that allows viewers to physically interact with photomicrographs, becoming direct objects of manipulation. In a sense, this artwork employs two kinds of medium, comprising two different applications of SEM images: still photomicrographs and interactive digital installations. They can be perceived differently in terms of the aesthetic response they generate in the viewer, but both draw attention to the qualities of water through enhanced visual details that aid in the interpretation of water samples.