How to Use This Module Readings Meet Mario Molina Ozone Issue Basics How Do We Know Ozone is Missing? How Do We Measure Tiny Amounts? Photons Incoming! Making and Destroying Ozone A Slap on the Head Meet Susan Solomon Why Antarctica? Swapping Atoms Meet Joseph Francisco What is a Refrigerant? The Two Faces of Ozone Glossary Websites About the Authors Student Directory

Hands-on Activities Checking for Ultraviolet Radiation When a Little Goes a Long Way UV Light and Sunscreen Ozone Patrol Clocking a Reaction Challenge Activities Understanding Analysis Generalization UV and Your Skin On Your Own Part 1 On Your Own Part 2 The Great MTBE Controversy Another Protocol