The document outlines a year-long pacing guide for a physical science course divided into four quarters or nine weeks. It includes 17 units that will be covered such as: measurement, motion, forces, energy, work and machines, sound and light, electricity, magnetism, the nature of matter, thermal chemistry, behavior of gases, atomic structure, compounds, chemical reactions, energy and chemical reactions, and solutions. The pacing guide provides an overview of the essential physical science concepts and topics that will be taught each quarter over the course of the academic year.