Subject: Science: Natural & Physical

Our Natural World Series (Science Shorts)

Natural World 6: Acid Rain

Segments include: Acids 1: pH Scale - An introduction to acids and the pH scale; plus a look at the origins of acid rain. Acids 2: Acid Rain - Where various acids and bases rank on the pH scale; plus the most damaging forms of acid rain, caused by sulfur dioxide and nitrogen dioxide. Acids 3: Acid Death - A look at "Lake 223" and how scientists have watched as its ecosystem was destroyed by acid rain. Acids 4: Death of a Tree - Shows the deadly process called leeching, where acid rain seeps into soil and then plants. 09DR IJSCA 11 min.