This document provides a unit overview report for the Science department of Seoul Foreign High School for the 2012-2013 school year. It outlines the various biology, chemistry, physics, and environmental science courses offered to students in grades 11 and 12, along with the topics and timeline covered in each course over the school year. Courses include Biology, Chemistry, Physics, and Environmental Systems and Societies, and topics range from cells and genetics to thermodynamics and human population dynamics.