This summer, our students were selected for the Penn L Laboratory Experience in Natural Science (LENS) program.  In this highly selective program, our students had  the opportunity to gain firsthand experience working in a university science laboratory and/or field setting.  Under the direction of Penn faculty and their graduate students, they carried out daily assigned tasks which are essential to the on going research efforts. They gained important skills that involve both laboratory procedures and computer-based data collection and analysis. Supervised by the program coordinator (a high school teacher), they met weekly as a group for discussions, shared activities, and trips. The internship culminated with a poster about their summer experience, to be shared with others in the program and then taken back to school for display in the fall.