Class-9 Geography Course Summary:
Theme 1: The Earth as a Planet
- Introduction to Earth as a celestial body.
- Characteristics of the Earth.
- Position in the solar system.
Theme 2: Geographic Grid
- Understanding latitude and longitude.
- Grid as a reference system.
- Coordinates and their significance.
Theme 3: The Motions of the Earth
- Rotation and revolution.
- Day and night cycle.
- Seasons and their causes.
Theme 4: The Structure of the Earth
- Layers of the Earth.
- Composition of the Earth’s interior.
- Tectonic plates and their movement.
Theme 5: The Landforms of the Earth
- Introduction to major landforms (mountains, valleys, plains).
- Formation processes of landforms.
Theme 6: Rocks
- Types of rocks (igneous, sedimentary, metamorphic).
- Rock cycle and its stages.
Theme 7: Volcanoes
- Formation and types of volcanoes.
- Volcanic eruptions and their impact.
Theme 8: Earthquakes
- Causes of earthquakes.
- Earthquake waves and measurement.
- Effects of earthquakes.
Theme 9: Weathering and Denudation
- Part I: Weathering
- Types of weathering (physical, chemical, biological).
- Factors influencing weathering.
- Part II: Denudation
- Processes like erosion and transportation.
- Landforms resulting from denudation.
Theme 10: Hydrosphere
- Composition and distribution of water on Earth.
- Oceans, rivers, lakes, and their significance.
Theme 11: Composition and Structure of the Atmosphere
- Components of the atmosphere.
- Layers of the atmosphere.
Theme 12: Insolation
- Solar radiation and its impact.
- Factors affecting insolation.
Theme 13: Atmospheric Pressure and Wind Systems
- High and low-pressure systems.
- Global wind patterns.
Theme 14: Humidity and Precipitation
- Concepts of humidity.
- Types and forms of precipitation.
Theme 15: Types of Pollution
- Introduction to pollution.
- Air, water, and soil pollution.
Theme 16: Pollution – Sources and Major Pollutants
- Sources of pollution.
- Identification of major pollutants.
Theme 17: Effects of Pollution
- Impact of pollution on the environment.
- Human health effects.
Theme 18: The Natural Regions of the World
- Classification and characteristics of natural regions.
- Biotic and abiotic factors influencing natural regions.
Theme 19: Map Work
- Reading and interpreting maps.
- Understanding symbols, scales, and legends.
- Locating and identifying geographical features on maps.