Subject Tests are one-hour tests that are designed to assess academic readiness for college. SAT Subject Tests focus on very specific subject areas such as Math (Level 1 or 2), Biology, Chemistry, Physics, Literature, United States History, World History, Spanish and more. While SAT Subject Tests are often seen as tests for only those applying for admission to elite universities, every student wanting to go to a four-year college could benefit by taking at least three SAT Subject Tests. Why? Because there is no downside and lots of upside.