In this Maya Empire CSI Investigation activity, students take on the role of historians, scientists, and researchers as they try to uncover the reasons behind the downfall of the Mayan Empire. Students research the Maya downfall in Mesoamerica to understand their history, culture, and the factors that may have led to their demise. This resource is included in my Mesoamerica Unit Bundle to teach the Inca, Maya, and Aztec as well as my CSI World History Bundle! Students are engaged with a short