This book focuses on the content topics and critical thinking skills needed to pass the GED Science test. Lessons include graphs, charts, and diagrams of key concepts and definitions of important vocabulary terms. Each lesson includes an introduction to one of the content or subtopics. Detailed explanations, diagrams, and definitions of key concepts and terms ensure understanding. Over 150 practice questions model GED test items. In additional to practice questions there are also two guided short answer responses and 18 short answer practice prompts.