Assess students' understanding of how local land use (urban, agricultural, forested), pollution sources (point and nonpoint), and water-management practices (stormwater control, riparian buffers, wastewater treatment) influence watershed water quality and aquatic life; quiz will cover common water-quality indicators (pH, dissolved oxygen, turbidity, nutrients), typical ecological impacts (habitat loss, eutrophication, bioaccumulation), and ask learners to interpret simple data or maps and suggest basic management or mitigation actions appropriate for a middle-school level.