Science Knowledge

Are you more science-savvy than the average American?

To test your knowledge of scientific concepts and recent scientific findings and events, we invite you to take this 12-question science knowledge quiz. Then see how you did in comparison with the 1,005 randomly sampled adults asked the same questions. You'll also be able to compare your Science IQ with the average scores of men and women; with college graduates as well as those who didn't attend college; with people who are your age as well as with younger and older Americans.

This quiz was part of the Pew Research Center's 2009 study of science and its impact on society, conducted in collaboration with the American Association for the Advancement of Science. The analysis of the findings from the poll can be found in the full report. (No peeking! If you are going to take the quiz, do it first before reading the analysis.) The discussion of the knowledge quiz can be found in Section 7 of the report.

Read the report: Public Praises Science; Scientists Fault Public, Media

Question 1 of 12

Which over-the-counter drug do doctors recommend that people take to help prevent heart attacks?

Question 2 of 12

According to most astronomers, which of the following is no longer considered a planet?

Question 3 of 12

Which of the following may cause a tsunami?

Question 4 of 12

The global positioning system, or GPS, relies on which of these to work?

Question 5 of 12

What gas do most scientists believe causes temperatures in the atmosphere to rise?

Question 6 of 12

How are stem cells different from other cells?

Question 7 of 12

What have scientists recently discovered on Mars?

Question 8 of 12

The continents on which we live have been moving their location for millions of years and will continue to move in the future:

Question 9 of 12

Lasers work by focusing sound waves:

Question 10 of 12

Antibiotics will kill viruses as well as bacteria:

Question 11 of 12

Electrons are smaller than atoms:

Question 12 of 12

All radioactivity is man-made:

Get your results!