Filled with high interest exercises, this Grade 5 Unit 3workbook focuses on invertebrates, vertebrates, classifying animals, relating function and structure. Lifepac science curriculum brings the physical world of God's creation into focus. Students conduct experiments to reinforce scientific concepts, such as animals: life cycles. Perfect for students who flourish in a self-paced, individualized learning format, each consumable Lifepac combines lessons, exercises, projects, reviews, and tests. Paperback.