This document discusses different perspectives on what constitutes science. It provides examples of activities and lists scientific disciplines. It introduces the ideas of science as a body of knowledge versus a way of thinking. It discusses Karl Popper's view of falsification, where theories can only be scientific if they are potentially falsifiable. It also discusses Thomas Kuhn's idea of paradigm shifts in science and how new paradigms provide new models and problems to solve for a scientific community. The document asks if IB science can be considered real science and lists skills expected in IB science like planning experiments, collecting data, and working as a team.