Berlin Walls in our neighborhood: a social justice excursion for community college students in chemistry

Social inequalities, pervasive in the modern world, silently shape access to education and educational outcomes, especially in the sciences. Yet, natural science curricula rarely acknowledge these influences, often under the assumption that their commitment to objectivity must imply political and socioeconomic neutrality. This paper presents an educational initiative that addresses this disconnect by integrating elemental analytical chemistry with social justice themes. A field trip was designed for chemistry students at Fullerton College, pairing hands-on exposure to optical emission spectroscopic techniques with a socio-environmental investigation of heavy metal contamination across different neighborhoods in Orange County, California. This design deliberately tackled two distinct yet interconnected dimensions of equity: equity in access to scientific knowledge and resources and equity through and in the outcomes of scientific inquiry. The analysis of arsenic and lead levels in locally collected organic samples revealed higher contaminant concentrations near highways and in economically disadvantaged areas, illustrating a direct and tangible link between environmental health and socioeconomic status. By drawing this connection, the project shows how chemistry can serve not only as a technical discipline, but also as a means for illuminating and confronting systemic injustices, inspiring students from marginalized communities to recognize it as a powerful tool for social change. This dual-purpose educational model demonstrates that field-based science instruction can simultaneously build technical competence and civic awareness. Replicating and expanding such initiatives can help bridge deep-seated societal divides by planting seeds of change at the foundational level of education, where the roots of lasting social transformation run deepest and where, accordingly, both scientific literacy and social consciousness ought to be cultivated avidly.