Assess undergraduate students' understanding of the mechanisms driving eutrophication in temperate freshwater lakes and its ecological consequences. Scope includes external and internal nutrient sources and cycling (N, P), phytoplankton responses and harmful algal blooms, seasonal stratification and oxygen depletion, impacts on food webs and biodiversity, greenhouse gas emissions, indicators and simple data interpretation (e.g., nutrient loading vs. chlorophyll, DO profiles), and common mitigation and management strategies with trade-offs. Focus on causal pathways, interactions, and applied analysis of monitoring data.