How well do you understand science?
Jon D. Miller, director of the International Center for the Advancement of Scientific Literacy at the University of Michigan at Ann Arbor, has been asking people in the United States and abroad that question since 1988.
Click through the quiz below and see how you compare with American citizens. About 29 percent of American adults scored 70 or above on a 100-point scale, according to results from 2008.
