Studying the relationship between organisms and their environment teaches students that all the sciences are interrelated. Science Fundamentals 5 will help middle-schoolers become more confident science students by understanding key concepts. It will also help them recognize the impact of human actions on, and develop strategies to restore, Earth's ecosystems. Concise, easy-to-understand explanations are reinforced by colorful illustrations/diagrams, straightforward tables, engaging fun facts and helpful tips for reversing negative trends.