Assess students' ability to identify human sources of impact on a local watershed (e.g., agricultural runoff, urban stormwater, septic/sewage, deforestation), describe resulting environmental effects on water quality and aquatic habitats, interpret simple data or maps, and propose practical, age-appropriate mitigation or restoration solutions while considering community trade-offs. Scope: grades 6–8, medium difficulty, focusing on identification, cause–effect analysis, basic data interpretation, and solution design.