How do you help undergraduate students learn about research ethics? Well you might try the three case studies developed by the University of Delaware's Undergraduate Science Education Program and the Howard Hughes Medical Institute designed to help students learn about this important subject. On this site, visitors will find the following studies: "Tripped Up," "Helping Hand," and "Organic Reactions." Each study describes a potentially tricky or nuanced ethical conundrum that an undergraduate student might encounter. For example, "Tripped Up" involves a student whose scientific results are "too hot for public consumption" and is told by his supervisor that he cannot present the findings at a national meeting. Each case study is complemented by a set of discussion questions and additional resources.