Filled with high interest exercises, this Grade 12 Unit 5workbook focuses on speed of light, mirrors, lenses, models of light. Lifepac science curriculum brings the physical world of God's creation into focus. Students conduct experiments to reinforce scientific concepts, such as light. Perfect for students who flourish in a self-paced, individualized learning format, each consumable Lifepac combines lessons, exercises, projects, reviews, and tests. Paperback.