This learning activity equips school nurses to serve as advocates for environmental health in educational settings. It explores practical methods for identifying, assessing, and addressing environmental hazards affecting student health and academic performance, focusing on indoor air quality, water safety, chemical exposures, and physical safety. It provides implementable assessment protocols and evidence-based intervention strategies, with special consideration for vulnerable populations. The content emphasizes the nurse's unique position to recognize environmental health patterns and implement improvements that enhance student wellbeing and learning outcomes.