Science Lessons and Investigations includes 12 units, each of which follows the 5E model: Engage, Explore, Explain, Evaluate, and Extend. This gives students a hands-on opportunity to delve into each scientific topic and apply their understanding in a creative way. This teacher's edition includes an answer key for vocabulary and comprehension activities, making it ideal for the classroom and homeschooling. Core subject areas and topics include: Life Science: Plant and Animal Life Cycles Nature and Nurture Adaptations Organisms in a Changing Environment Group and Social Behavior Fossils of Ancestors Earth Science: Weather Climate Natural Processes and Hazards Physical Science: Changes in Movement Predicting Motion from Patterns Magnetic Forces