It is vital to remember that science is never ‘fact’ but comprises a set of models that best explain the way the world works. Will these theories change? Only time will tell. As scientists and science communicators, we must always keep the possibility of change in mind. By appreciating how scientific ideas have changed over time and will continue to do so, we can better understand the nature of science and engage with it ourselves. The Science Museum’s Talk Science team models this concept in a hands-on workshop. Come try it out and be inspired by the dynamic nature of scientific thought.