Science Club is an after school program created in partnership between Northwestern University and the Boys & Girls Clubs of Chicago. Every week throughout the academic year, middle school youth (grades 5-8) work in small groups with their graduate student mentors on challenging, hands-on experiments. The six Science Club curricular modules cover topics ranging from biomedical engineering to food science, all with the goals of helping youth to 1) improve their understanding of the scientific method, 2) develop scientific habits of mind, and 3) increase their interest in STEM fields, particularly health-related careers. Science Club serves 60 youth every quarter with the help of 30 trained scientist mentors. Science Club meets three days a week at the Pedersen-McCormick Boys & Girls Club in Chicago, IL.