Unit 1 Geoscience Passage A The Emergence and Evolution of the Earth System Science Passage B Seismic Waves and the Earth's Core Passage C Convection Plumes in the Lower Mantle Exercises Unit 2 Geomaterials Passage A Rock Forming Minerals Passage B Physical Properties of Mineral Passage C Attributes of Geomaterials in Construction Exercises Unit 3 Atmospheric and Climate Sciences Passage A Global Climate Change Passage B Climate and Urban Development Passage C ENSO Events and Climate Change Exercises Unit 4 Soil Science Passage A A Brief Introduction to Soil Passage B Minerals and Plants Passage C What is Soil Health Exercises Unit 5 Modern Hydrology and Marline Sciences Passage A The Hydrologic Cycle Passage B Glacier Formation Passage C Ocean Water Exercises Unit 6 Resources and Energy on the Earth Passage A Natural Resources: Classification and Protection Passage B The Earth's Energy Cycle Passage C Nuclear Energy Exercises Unit 7 Low Carbon Economics Passage A Energy, Society and Environment Passage B Smart Energy Passage C Geoscience and Decarbonization:Current Status and Future Directions Exercises Unit 8 Natural Disasters Passage A Estimating and Controlling Floods Passage B Volcano Monitoring Passage C Mitigation of the Impacts on the Earth by Near-Earth Objects Exercises Glossary