This course is organized into four units. Each unit is composed of four sections. For each section there is an assignment and quiz. For each unit there is a test and project.

Unit	Topics
Unit 1: Earth’s Structure	1.1 Geography themes and Skills 1.2 Layers & Plate tectonics 1.3 Earthquakes and volcanoes 1.4 Types of rocks
Unit 2: Climate	2.1 Atmosphere 2.2 Weather and Climate 2.3 Extreme Weather 2.4 Climate Change
Unit 3: Our Dynamic Earth	3.1 Weathering and Erosion 3.2 Effects of Natural Disasters 3.3 Environmental Issues 3.4 Human Responses
Unit 4: Biomes and Ecosystems	4-1: Characteristics of Terrestrial Biomes 4-2: Aquatic Biomes 4-3: Formation of Biomes 4-4: Biomes Shaped by Human Activity