Introduction About Maps Video:
A map is a picture or representation of the Earth’s surface, showing how things are related to each other bydistance,direction, and size. Maps are a way of showing many things about a portion of the earth’s surface on a flat piece of paper that can be carried and transported easily.
History Of Maps:
Maps have been used for centuries. A person who creates map as a profession is called a cartographer. Maps are important tools and are indispensable to geographers. They help geographers understand in a visual way important things about the surface of the Earth.
The Simplest compass:
The simplest compass is a magnetized metal needle mounted in such a way that it can spin freely. Left to its own devices, the needle turns until one end points north and the other south. The type of compass used on a ship or aircraft is a complex electronic or mechanical device capable of compensating for both the motion of the craft and its metallic structure. At the other extreme are small pocket compasses of low precision intended for casual use.
An atlas is a book that contains illustrations of maps, charts, plates and tables on any subject, such as geography, history, astronomy and anatomy.
Type Of Map:
A Topographical Map:
A topographical map is a line and symbolrepresentationof naturaland selected man-made features of a part of the Earth’s surface plotted to a definite scale. A distinguishing characteristic of a topographic map is the portrayal of the shape and elevation of the terrain by contour lines. Topographic maps show the location and shape of mountains, valleys, and plains; the networks of streams and rivers; and the principal works of man.
Geologic maps are difficult for students to understand because it shows the rocks that are on the surface of the Earth.
Give general information about the climate and precipitation (rain and snow) of a region. Cartographers, or mapmakers, use colors to show different climate or precipitation zones.
Economic or Resource Maps:
Feature the type of natural resources or economic activity that dominates an area. Cartographers use symbols to show the locations of natural resources or economic activities. For example, oranges on a map of Florida tell you that oranges are grown there.
Illustrate the physical features of an area, such as the mountains, rivers and lakes. The water is usually shown in blue. Colors are used to show relief—differences in land elevations. Green is typically used at lower elevations, and orange or brown indicate higher elevations.
Do not show physical features. Instead, they indicate state and national boundaries and capital and major cities. A capital city is usually marked with a star within a circle.
Show major—some minor highways—and roads, airports, railroad tracks, cities and other points of interest in an area. People use road maps to plan trips and for driving directions.
Useful for CBSE, ICSE, NCERT & International Students
Grade : 4
Subject : Evs
Lesson : MAPS
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