Every two years, the National Science Foundation compiles a report about the state of science and engineering in the U.S. A lot of it is pretty technical — there's detailed analysis of the labor force, higher education, and research trends, among other things — but deep in the report is a section devoted specifically to the everyday person. It's entitled "Science and Technology: Public Attitudes and Understanding," and in it, the NSF grades the American public on their ability to answer a handful of basic science questions. Even people outside of science careers should have some understanding of how science works, the Foundation figured, so they designed the questions to see if people had enough knowledge "to understand a quality newspaper's science section." Seems reasonable enough.
See if you can answer the questions yourself, then scroll down to find out how you stack up against Americans — and the rest of the world.