The fifth edition of "Understanding Earth" continues the book's enduring goal, to help students understand what physical geology teaches us about the world and what it brings to our lives. Two new co-authors have introduced a wealth of recent data and applications to keep the science on the cutting edge. Students will enjoy coming to learn how we know what we know, and how that knowledge impacts our lives as citizens and consumers. It supplements "Instructor's Resource Manual" (0-7167-4507-0), "Enhanced Instructor's Resource CD" (0-7167-4509-7), "Slide Set with Lecture Notes" (0-7167-2901-6), "Overhead Transparency Set" (0-7167-5780X), "Test Bank CD-ROM" (0-7167-5783-4), "Printed Test Bank" (0-7167-5784-2), "Student Study Guide" (0-7167-3981-X), and "Lecture Notebook" (0-7167-4446-5).