GEOGRAPHICAL SCIENCE
1. Introduction to Geography Geography = Study of Earth , its features , people , and interactions . Answers three major questions: What is where? Why is it there? How does it change over time? Main Branches Physical Geography – Natural features & processes Human Geography – Human activities & their impact Environmental Geography – Relationship between humans and environment Regional Geography – Study of specific regions of the world 2. Structure of the Earth Layers of Earth Crust Outermost layer 5–70 km thick Continental & oceanic crust Mantle 2900 km thick Semi-molten rock (magma) Causes movement of tectonic plates Core Outer Core : Liquid Inner Core : Solid Responsible for Earth’s magnetic field 3. Plate Tectonics What are Plates? Earth’s crust broken into large & small pieces called tectonic plates . Types of Plate Movements Convergent Boundary Plates collid...