The purpose of this study is to present a learning activity that combines the simultaneous practice of geography and chemistry. It is a game activity based on the identification of national flags and colored molecules (from the famous CPK model), with an extension to the creation of imaginary flags from real, useful molecules for middle school, high school, and university classrooms. The goal of using a game is to motivate/involve learners, to encourage them to work and develop adaptability and responsiveness by practicing chemistry and geography components. The feedback received from students who participated in this exercise during the 2019–2020 academic year has been evaluated and shows an increase of motivation and critical thinking. The objective is to make students more aware of geopolitics, to engage discussion on their awareness of the world, and to prepare them to play an active role in it.