This document provides instructions for a lab on air pollution for 7th grade students. It instructs teachers to split students into groups based on the number of available computers and have them answer questions about air pollutants in their local area. The questions address sources of local air pollution, health effects, seasonal changes in air quality, indoor pollutants, and laws/regulations to reduce pollution. After 30 minutes, the teacher should have students come together to discuss their findings and draw conclusions based on this lab and the previous one on environmental science.