In this article, the authors describe a cross-curricular project designed to enhance learning about micro-organisms. This project includes studies in art and poetry, not subjects that teachers would think of linking with science, however research notes that scientists and poets share the ability to pay close attention to things, a key skill also shared with artists. The stimulus for this work was images of yeast cells taken with a microscope, which provided a window into the "hidden world" of micro-organisms. The authors reference the work of Charlene Czerniak (2007), who described several different models for planning a cross-curricular study, one of which is what she called the "process approach," when similar skills and processes are taught across different subjects. The world of micro-organisms is just one of many "hidden worlds" waiting for students to observe. Poetry and art give children the opportunity to respond to the awe and wonder aspect of the science curriculum.