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  Home > JCE Print > Journal of Chemical Education > Issues > 2003  > January  >
Chemistry for Everyone
JCE Classroom Activity
Acid Raindrops Keep Fallin' in My Lake
JCE Editorial Staff
Journal of Chemical Education, Madison, WI 53715
Cover
January 2003
Vol. 80 No. 1
p. 40A
Abstract
Normal rain has a pH of about 5.6. If the air is polluted by oxides of sulfur and nitrogen that result from the burning of fossil fuels, these pollutants can cause the rain to become more acidic. When acid rain falls in a lake, it can lower the pH of the lake water, causing problems for the plants and animals that live there. In this Activity, students simulate acid rain falling on lakes by adding vinegar to bowls of water. Several of the bowls contain solids such as crushed chalk, sand, and lime. Students determine if the solids affect the acidity of each solution over the course of two days by periodically removing samples of each solution for testing with red cabbage indicator.
More Information
*  Citation
 JCE Editorial Staff . J. Chem. Educ. 2003 80 40A.
*  Keywords
 Acid-Base Chemistry; Environmental Chemistry; Introductory / High School Chemistry; Water / Water Chemistry
*  History
 Created:
Last Updated:		 December 5, 2002
February 28, 2005
Full Text PDF corrected (April 2003).
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