Acid rain is caused when certain chemicals are released into the atmosphere, chemically react, and fall as rain or snow. Acid rain has a pH that is much lower than normal rainwater. pH measures if a substance is an acid or a base.
Kids and Teens: School Time: Science: The Earth: Cycles: Water
Kids and Teens: School Time: Science: The Earth: The Atmosphere: Weather: Rain
Copyright © 2013 Netscape
Last update: Friday, June 28, 2013 5:41:23 PM EDT -