Chapter_1_Notes

Chapter_1_Notes - Chapter 1 This chapter discusses the...

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Chapter 1 This chapter discusses the study of Earth Systems, geography and the five themes of geography. It introduces the Earth, its relation to the solar system, size and shape, the geographic grid of latitude and longitude, Earth-Sun relations, and telling time. Earth Systems Science : A system is a set of interdependent parts that are enclosed within a definite boundary. The study of the Earth as a system examines its different components and their interrelationships. Geography : Geography is the study of how things differ from place to place. It is the study of Earth as our home and the transformation of the environment by society and nature from local to global scales. Five Themes of Geography: 1. Location: Knowing the location helps you develop an awareness of the world around you. 2. Place: Its physical nature like landforms and climate and cultural aspects like language and way of life help in getting to know about a place. 3. Region: A group of places united by one or more common characteristics is called a region. 4. Movement: The movement of goods, ideas and people transforms societies. 5. Human-Earth Interaction: Relationships between people and the environment influence how we live. Physical Geography : The study of the Earth as a physical environment and home for humans is called Physical Geography. Human or Cultural Geography : The study of the transformation of Earth by society is called Cultural or Human Geography. Current Applications of Physical Geography : Hydrologists, weather forecasters, biogeographers, oceanographers, environmental professionals, natural resource management specialists, geographic information systems analysts, etc. Universe : According to the ‘Big Bang’ theory, about 13.7 billion years ago, an infinitely dense fireball exploded, began to expand in all directions at incredible speed, pushing space out and filling it with energy and matter. Milky Way Galaxy : It is a disk-shaped spiral comprising 200 billion stars. Our solar system is part of the Milky Way galaxy.
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Solar System : About 4.5 to 5 billion years ago, a nebula, a diffuse cloud of gas and dust, began to contract forming a hot dense protostar, our sun. The revolving disk of gas and dust eventually coalesced and condensed to form the planets. Four Inner Terrestrial Planets : Mercury, Venus, Earth and Mars are smaller, denser and rotate more slowly. Four Outer Gas Planets : Jupiter, Saturn, Uranus and Neptune are larger, more massive but less dense and rotate more rapidly. Asteriod Belt
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Chapter_1_Notes - Chapter 1 This chapter discusses the...

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