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Linear Scale
2. Direction : In order to find, where you are going and how far away it is, you need to know
what direction you are going and need to be able to figure out the distance between the
place you are and the place you are going to. The easiest way to know the directions is that
the earth rotates west to east, so the sun rises in the east and sets in the west. No matter
which side one is facing. East is the morning sun and west is the evening sun or night time.
A compass is a device that helps the user to know the direction of a place.
The earth actually behaves as a giant magnet with a north magnetic pole and
a south magnetic pole. If a magnet is allowed to swing freely on a string, it
will eventually line up in a north-south position in alignment with the north
and south poles of the earth. Compass is used to find out main directions as
its magnetic needle always points towards north-south direction.
Compass
There are four major directions—North, South, East and West, also called
Cardinal points. Other four intermediate directions are north-east (NE),
south-east (SE), south-west (SW) and north-west (NW), which help us to
locate places more accurately.
Cardinal Directions
3. Symbols : Symbols and signs are very important in a map because maps are drawn on
a small sheet and it is not practically possible to write the names of things such as road,
bridge, river, school, hospital, temple, mountain, etc. on them. Certain symbols and signs
are used to show these things. These symbols are called the conventional symbols.
In a physical map, different colours are used to show different physical features.
Cultivated area – Yellow, Grassland – Light green
Forests – Dark green, Uncultivated land – Brown
Water features – Blue Built up area i.e., – Red
village, sites, towns, roads, etc.
18 Social Studies-6

