Helping students take ownership of their learning is often a challenge in a large lecture course. In this article, the authors describe a nature of science-oriented group project in a chemistry course in which students gave presentations in concurrent conference sessions as well as its impact on student learning as evidenced through multiple data sources. Finally, they describe how they plan to improve this project in the future and how it can be adapted to other science courses. (Contains 3 figures and 4 tables.)