Filled with high interest exercises, this Grade 12 Unit 3workbook focuses on mechanical energy, conservation of energy, power and efficiency, heat energy. Lifepac science curriculum brings the physical world of God's creation into focus. Students conduct experiments to reinforce scientific concepts, such as work and energy. Perfect for students who flourish in a self-paced, individualized learning format, each consumable Lifepac combines lessons, exercises, projects, reviews, and tests. Paperback.