Despite media attention to teen sexual behavior and public concern about its consequences, the public is surprisingly ill-informed or misinformed on the subject. Yet without the facts, it is difficult to develop effective approaches to curb risky sexual behaviors and prevent teen pregnancy and STI transmission. This paper presents a true or false quiz to test individuals' knowledge about teen sexual behavior. This paper also highlights some of the behaviors that put teens at increased risk: having sexual intercourse at a very young age; with someone whom they just met; with many partners; without a condom; while using drugs or alcohol; and engaging in oral sex.