What subject areas will the passages be about?
The passages fall into three general categories: humanities, social sciences, and natural sciences. The specific subject areas of the passages can vary from Renaissance art to the Civil War to astronomy. But whatever the topic of the passage is, you are not expected to have any outside knowledge of the subject matter. In fact, if you do have some knowledge of the subject you absolutely should not bring that knowledge into your reading of the passage. Everything you need to know in order to answer the questions is in the passage itself.