🧰 Teach photochemical smog and acid rain through modeling, data analysis, log math, and structured CER writing — all in two focused, AP® exam-aligned lessons. This APES Unit 7 mini bundle combines two rigorous Skills Builder activities designed to strengthen quantitative reasoning, scientific modeling, and evidence-based argumentation in a structured 45–50 minute format each. Students move beyond definitions and into real data, reaction modeling, transport analysis, and environmental solutions