Chapter 4 Maps

Map is a drawing according to the scale.
There are three types of map: Political, physical and thematic.
Physical maps are also called relief maps.
There are three components of map: distance, direction and symbol.
Scale is a ratio of distance shown in map and in actual.
Direction is represented by letter ‘N’.
Four cardinal points are: east, west, north and south.
Conventional symbols are used in maps to represent different features like river, roads, temple, trees, railway, grave etc. And, various colours too are used.
Sketch is a rough drawing of a spot which is not according to scale.
Plan is a drawing a small scale on a large scale.

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Exercise 1 ( Page No. : 28 )

Q1	Answer the following questions briefly. (a) What are the three components of a map? (b) What are the four cardinal directions? (c) What do you mean by the term ‘the scale of the map’? (d) How are maps more helpful than a globe? (e) Distinguish between a map and a plan. (f) Which map provides detailed information? (g) How do symbols help in reading maps?
Ans:	(a) The three components of the maps are: Symbol Direction Distance (b) The four cardinal directions are: North, South, East and West. (c) Scale is the ratio between the actual distance on the ground and the distance shown on the map. (d) Maps are more helpful than a globe in the following ways: Maps contains many facts. Maps are easy to carry than globe. Maps provide more information than a globe. We can study even a part of the Earth on the map. (e) Maps: A map is a representation or a drawing of the Earth’s surface or a part of it drawn on a flat surface according to a scale. Plan: It is a drawing of a small area on a large scale. (f) Large scale maps give more information than small scale maps, as they cover more space on the map to show features. And, they are easy to study or know than the small scale ones. (g) Different signs we use to detect a place on a map are called symbols. Maps are shown by using certain letters, shapes, colours, pictures and lines. They gives us lot of information in a limited space and are simple to read.

Q2	Tick the correct answers. (a) Maps showing distribution of forests are (i) Physical map (ii) Thematic Map (iii) Political map (b) The blue colour is used for showing (i) Water bodies (ii) Mountains (iii) Plains (c) A compass is used – (i) To show symbols (ii) To find the main direction (iii) To measure distance (d) A scale is necessary (i) For a map (ii) For a sketch (iii) For symbols
Ans:	(a) (ii) Thematic map These are the maps which focuses on the specific information like rainfall maps, maps showing distribution of forests etc. (b) (i) Water bodies. Different water bodies like river, well, canals or bridges are represented mostly by blue colour. (c) (ii) To find the main direction A compass is used to find the cardinal points (North, South, East, West) and the other intermediate directions (North east, North west, South east, South west). (d) (i) Map Maps are classified into two types: Small scale map and Large scale map. Scales are used to measure the actual distance on the ground and the distance shown on the map.

Chapter 4 Maps

Exercise 1 ( Page No. : 28 )

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