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SAI INTERNATIONAL  SCHOOL
                      Std VII      GEOGRAPHY        LESSON 2- INSIDE OUR EARTH
                                                         MINDMAP - 4





                                                                                The uses of rocks can be
                                                                                anything from oil to houses to
                                    IMPORTANCE OF                               diamonds. Rocks can explain

                                          ROCKS                                 prehistoric animals and plants by
                                                                                fossils and scientists can tell the
                                                                                history of the Earth from them.
                                                                                Rocks can be used for buildings
                                                                                and statues but the type of rock
                        ROCKS                                                   has to be suited for the job. The
                                                                                hardest rocks are used for
                                                                                making roads, houses and
                                                                                buildings. From the help of rocks
                                                                                we can get diamonds and
                                                                                crystals and other gems. Rocks
                                                                                can also be used for many other
                                                                                purposes.











                                       ROCK CYCLE


                                  Rocks are constantly changing
                                  in what is called the rock cycle.
                                  It takes millions of years for
                                  rocks to change.







                                MINERALS- Rocks are made
                                up of different minerals
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