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SAI INTERNATIONAL  SCHOOL
                   Std VII      GEOGRAPHY        LESSON 3- OUR CHANGING EARTH
                                                      MINDMAP -2












             SEISMOGRAPH                               EARTHQUAKE

          Monitors  the seismic                        a sudden violent                                    P
          waves that travel                             shaking of the             WAVES                   WAVES
          through the Earth.                                ground
                                                                                   are waves
                                                                                   of energy
                                                                                   that travel             S
                                                                                   through the             WAVES
                                                                                   Earth's
                                                                                   layers

            RICHTER SCALE

            scale of numbers                                                                               L
            used to tell the                                                                               WAVES
            power  of
            earthquakes.
                                                              BHUJ
                                                         EARTHQUAKE
                                                         (CASE STUDY)
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