Sixth grade science in the Lifepac curriculum is Plant and Animal Behavior, Molecular Genetics, and Chemical Structure. Topics include: Plant Systems, Body Systems, Plant and Animal Behavior, Molecular Genetics, Chemical Structure & Change, Light and Sound, Motions and Its Measurement, Spaceship Earth, Astronomy & the Stars, and The Earth and its Universe. The 6th Grade Science Boxed Set contains all 10 student worktexts, plus a comprehensive Teacher's Guide.