Chapter 1Social Studies History and GeographyUnit 01 History and Culture Clues from the Past Unit 02 The American Government the Important American Documents Unit 03 The Election System of the United States The American Presidential Election Unit 04 The American Civil War The Civil War Unit 05 PostCivil War Reconstruction Unit 06 The Nation Grows Indusrtialization and Urbanization Unit 07 War and Revolution The Age of Imperialism Unit 08 World War II World War II WrapUp Test 1 Chapter 2 Science Unit 09 Living Things and Their Environments Interactions among Living Things Unit 10 How Do Ecosystems Change? Biomes and Ecological succession Unit 11 How Plants Meet Their Needs Plant Structures and Functions Unit 12 Earths Surface Earths Changing Crust Unit 13 Earths Atmosphere What Makes Up the Atmosphere? Unit 14 The Properties and Structure of Matter