Globe | Map |
---|---|
i) It is spherical in shape. ii) It is three dimensional. iii) It accurately portrays the continent's shape and distance between land masses. | i) It is a flat representation of the earth's surface. ii) It is two dimensional. iii) It distorts continent's shapes and Sizes. |
To know the locations of various places of the world, we use globes and maps.
A globe is more accurate than a flat map map as it shows the true shape of the earth's surface. It also represents the accurate distance between landmasses.
There are four major components of maps. Without These components we can't study a map effectively. These are-
i) Title ⅱ) Scale iii) Direction and iv) Conventional symbol.Large scale maps | Small scale maps |
---|---|
i) Show a small area in great detail. ii) Are drawn to a scale of 1 cm equals 1 km or less. iii) A road map, city map etc. are examples of large scale maps. | i) Cover a large area in less detail. ii) Are drawn to a scale of 100 km or more. iii) World map, political map, physical map are the examples of small scale waps. |
A drawing of the Earth’s surface either whole or part of it on a flat surface is called a map.
Maps, which show the natural features of the earth surface, like mountains, plateaus, plains, rivers etc. are called physical maps.
Maps, which show the Boundaries of countries and of the state within the countries, are called physical maps. Physical maps also show the location of cities and towns.
The vertical line with an arrow at the top, marked with the letter “N” indicating the north direction of the map is called the North line.
To locate a place with respect to another place, we need to know both the direction and the distance between two places.
The key helps us to understand the symbols, colors, and signs used on a map. It explains in detail different symbols, such as roads, rivers, mountains, and boundaries.
Diagram is a simple drawing to show how something looks or how it is made or how it works.
Maps are more useful than gloves as it provides more formation of the earth's surface in great detail. Therefore, a man can accurately depict a small area of the earth's surface.
While using a map, there might be disadvantages as it shows the features of the spherical earth on a flat surface. It includes some distortion of shape, area and directions.
What is a map's scale? A map's scale is given thus 1 cm to 200 km. How far apart will two places be on the map, if the ground distance between them is 1,200 km?A map scale is the ratio of the distance between two places on a map to the actual distance between two places on the ground.
1 cm represents 200 km on the ground. Ground distance between two places = 1200 km. In a map, the distance of the scale 1200/200 = 6 cm.
Conventional symbols are universally accepted symbols that we use on map to represent various features of the earth's surface. they are needed because these symbols provide a plenty of information in a limited space. They make a map very simple and understandable. These are also called map legends as it tells the story of a map.
Using the table given below, show the differences between maps, plans and sketches.Map | Plan | Sketch | |
---|---|---|---|
Area covered | large | small | both |
Scale | small | large | Not used. |
Details shown | Less detail | More detail | Which is necessary & landmark. |