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Download The Five Themes of Geography
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Ch 1 sec 1 Geographers view the world by looking at the use of space on the earth and the interactions that take place there. They study the patterns and connections between the people and the land they live on. The most common tool that geographers use is a map. Different types of maps display different types of information. They also use photographs, construct scale models, and use digital imaging to create models of the earth. Another tool that is used are the five themes of geography: location, place, region, movement, and humanenvironment interaction. These organize information and help describe the use of space on earth. Location answers the question: “where is it?” There are two ways to answer that: absolute location and relative location. Absolute location is the exact place on earth where a geographical feature is found. Relative location describes a place in comparison to other places around it. Absolute location is determined by a grid of imaginary lines called latitude and longitude. The equator is the latitude line that divides the earth into the northern and southern hemispheres. The prime meridian is the longitude line that divides the earth into eastern and western hemispheres. Latitude lines are labeled from 0 to 90 degrees north and south, starting at the equator and ending at each pole. Each line of latitude is parallel to the others, so they are also called parallels. Longitude lines are labeled from 0 to 180 degrees, and they start at the prime meridian. The prime meridian runs through Greenwich, England, so it is sometimes called the Greenwich meridian. Longitude marks how far east or west the location is from the prime meridian Latitude and longitude create a grid system on the earth, and absolute location is determined by the latitude and longitude of the location. Relative location describes how a location relates to the locations around it. It can describe the characteristics of the location as well. Place refers to the physical and cultural features of a location. Physical features refer to things like climate, landforms, and vegetation. People have an influence on locations, through buildings, highways, dams, and ports. Regions are areas that have similar characteristics. Usually they have more than just one similarity. Regions have three categories: formal, functional, and perceptual. A formal region is defined by a limited number of related features. Generally the areas in a region are next to each other on a map. Functional regions are connected by a set of interactions. Cities and suburbs are a functional region. Perceptual regions deal with how people view the region. Different people have different opinions about the connection. Geographers study how people, goods, and ideas move from place to place. There are three types of distances to cross: linear, time, and psychological. Linear refers to how far something must travel. It is affected by physical features on the earth. Time distance refers to how long it takes to move something. The faster something can travel, the farther it can spread. Psychological distance deals with people’s ideas about distance. Your perception of distance can affect the choices you make. How people use the land and resources is an important idea for geographers. Resources can affect population growth and movement. People can alter the surface of the earth to meet their needs, and they can cause problems when they alter the surface. Describe where you live using the 5 themes of geography, relative to the school.