This teacher's guide is for the second year of the Portland Project, a three-year integrated secondary science curriculum sequence. The first of two parts in this volume, "Motion and Energy," begins with the study of motion, going from the quantitative description to a consideration of what causes motion and a discussion of Newton's laws. There follows the development of the laws of conservation of momentum and energy, including a discussion of energy in biological systems, and culminating with a discussion of the kinetic molecular theory. Part two, "Chemical Reactions," builds basic chemical concepts necessary for the analytical approach in the third year course. Topics considered in this part include the mole concept, equation writing, energetics associated with chemical reactions, the dynamic nature of particles and their interactions, and the application of energy and equilibrium to chemical systems. The Harvard Physics Project textbook and the Chemical Educational Materials Study (CHEMS) textbook are used for most of the reading assignments in the second year course. A review of the development of the three-year program, its rationale and content, and a three-year course subject outline are included in this volume. Notes to the teacher, examples of data, and problem calculations are included. (Author/SL)