Filled with high interest exercises, this Grade 11 Unit 4workbook focuses on historical models, modern atomic structure, periodic law, nuclear reactions. Lifepac science curriculum brings the physical world of God's creation into focus. Students conduct experiments to reinforce scientific concepts, such as atomic models. Perfect for students who flourish in a self-paced, individualized learning format, each consumable Lifepac combines lessons, exercises, projects, reviews, and tests. Paperback.