Exploring the Environmental Impact of Acid Rains: Linking Chemistry and Geography in Education

We present a series of interdisciplinary chemistry–geography activities carried out with middle and high school students, focusing on the topic of acid rain and its environmental impact. The educational approach aimed to integrate theoretical knowledge from chemistry (chemical reactions, pH, acidic oxides, air pollution) with concepts from geography (climate, atmospheric circulation, spatial distribution of pollution, effects on ecosystems and human settlements), in order to develop a comprehensive understanding of the phenomenon. The activities included laboratory experiments for measuring the pH of real or simulated rainwater, as well as simulations of the effects of acid rain on soil, plants, and different materials. From a geographical perspective, students analyzed thematic maps showing industrial areas, major emission sources, and regions most affected by acid rain, correlating chemical data with climatic and geographic factors. In addition, case studies and small group projects were conducted, focusing on the impact of acid rain in different regions of Europe. The results of these activities highlighted an increased student interest in environmental issues, an improved ability to make connections between scientific disciplines, and a more applied understanding of the relationship between human activities and natural processes.