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Unit-7 : Our Natural World


                                     Our Earth                                                                18








             Key Topics


                  Surface of Land                                      Man has Brought Changes



            The Sun and the eight planets that revolve around it form our solar system. Our

            planet Earth is one of them.







































            Look at the picture above and tell


            1.     Which planet is closest to the Sun?

                   ……………………………………….
                                                                                        Do you Know?
            2.     Name the planet that is farthest from the Sun.                       Planets are heavenly bodies


                   ……………………………………….                                                     that move around the Sun.

            Our Earth is like a round ball. It is made up of land and water and is surrounded by



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