Page 117 - SST Class 06
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Maps :



                                                                               Our Guides               18










             q   Importance of maps                                 q   Types of maps
             q   Components of map                                  q   Sketch
             q   Plan


            Introduction                                            Man has tried to make a map since earliest times.
                                                                    The earliest map is believed to have been made in
            Though a globe gives a good, visual indication of
            the Earth’s surface, the shape of the continents and    2300 BC. The credit for map-making a science
                                                                    goes to Ptolemy  , an Egyptian. He was the first to
            their   relative  positions  and    gives  a   true
                                                                    make a map on scientific basis and he drew a
            representation; whatever position it is viewed from,    North-line to depict directions for the first time.
            but it has certain limitations. It depicts the Earth as
            a whole and when we want to study a part of the
                                                                          Info Bits
            Earth in greater detail, it becomes impossible to             Info Bits
            make such a huge       globe which can show all
            necessary details. Also, it is not possible to put a     q  The art of map-making is called cartography.
            globe on a book, besides being inconvenient to           q  A book of maps is called an atlas.
            carry.
                                                                                       TYPES OF MAPS
                           IMPORTANCE OF MAPS                       A map can be made to highlight all or some
                                                                    topics. Different types of maps can be made
            A map has several advantages over a globe. It can       keeping in view the features that are needed to be
            be used to study a smaller part of the Earth, like a    shown. Broadly, there are three types of maps :
            continent, country, state, city or village, or even a
            neighbourhood or house. It can be folded or              Physical Maps
            printed on a book.                                      A physical map shows the natural features of the

            Of course, a map too has certain limitations. The       Earth, such as oceans, mountains, rivers, plateaus,
            Earth is spherical while a map is flat, so some         plains etc. It is also called a relief map .
            details have to be compromised. Still, a map is a        Political Maps
            far better option than a globe.
                                                                    A   political  map    shows   the   boundaries    of
                                                                    countries, states, cities, towns etc. It can include
                                                                    some more information, like capitals, rivers,
                                                                    railway lines, roads etc.
                                                                     Thematic Maps
                                                                    Sometimes we need to study a particular feature of
                                                                    a part of the Earth, such as population density,
                                                                    rainfall,  forests,  industries,  mines,   wildlife,
                                                                    railways, roads etc. A thematic map deals with
                 Ptolemy                 Ptolemy’s map              one or more of such themes.
                                                                                               Maps : Our Guides
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