Information covering important topics for today's educators and parents. Exploring the environment. The series explores complex interrelationships among humans and Earths physical and biological systems and addresses priorities when preservation of the environment conflicts with human wants and needs. The Clean Air Act of 1970 and 1990 are examined and the harmful effects of air pollution are presented. In one activity, students make smog by filling a glass bowl with warm water, pouring the water out, dropping a piece of burning string in the bowl, covering the bowl with aluminum foil and placing ice cubes on top of the foil.
Students observe what happens inside the bowl and answer questions about their observations.
A glossary and student review questions are included. ENC does NOT distribute this resource.