- A comprehensive series that has multidisciplinary appeal. - Provides in-depth information plus 4-color images, timeline, glossary, index, and to find out more section. - Grades 5-8 Social Studies - Time, Continuity, and Change: II - Identify and use key concepts such as chronology, causality, change, conflict, and complexity to explain, analyze, and show connections among patterns of historical change and continuity. - Grades 5-8 Science - Science and Technology in Society: V: F-5 - Technology influences society through its products and processes. - History and Nature of Science: VII: G-3C - The history of science can show how difficult it was for scientific innovators to break through the accepted ideas of their time to reach the conclusions that we currently take for granted.