This bioacoustics activity combines concepts in invertebrate taxonomy, animal communication, and acoustical physics while providing a unique opportunity for physics and biology teachers to collaborate and introduce their students to an exciting, interdisciplinary research field. Here, we propose a lab- and field-based activity that uses hydrophones to explore how shrimp snapping behavior changes in response to different stimuli and introduces students to the process of scientific inquiry. Using free software, students use spectrograms to visualize and analyze their experimental data. Furthermore, we propose potential modifications to the lab for classrooms without easy access to marine environments or snapping shrimp.