Further Reading

J. Raloff. “Exxon Valdez oil lingers, as does its toxicity.” Science News blog. March 24, 2009.


J. Raloff. “Exxon Valdez 20 years later.” Science News anniversary roundup on the spill. March 25, 2009.


J. Raloff. “Crude yet unconventional.” Science News. Vol. 116, July 21, 1979, p. 42.


J. Raloff. “Tapping heavy crude: a forgotten resource.” Science News. Vol. 115, June 16, 1979, p. 388.


R.F. Meyer and E.D. Attanasi. Heavy oil and natural bitumen —


strategic petroleum resources. U.S. Geological Survey Fact Sheet 70-03, August 2003


Teacher’s questions: Questions you can use in your classroom related to this article.