Page 58 - EVS-2
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Some rainwater seeps into the ground. This is called ground water.

            To see how this happens, you could pour a

            glass of water on the soil. You will see the

            water  spreads  and  disappears.  It  goes

            underground!  We  dig  wells  to  get
            groundwater.  It  can  also  be  brought  out

            with the help of hand pumps.                                          Well                Hand pump




                                                   In some places, water gushes out from under the

                                                   ground. These are called springs. In some places,

                                                   there are hot springs.





                           Spring                      Potable Water


            Very often, different things are mixed in water. Water also has tiny germs that

            can make us sick. Such water is unfit for drinking. Water that is safe for drinking is

            called potable water.

            Potable water is colourless, and has no smell or germs.



                                          Making Water Fit for Drinking

            We must boil and filter water to make it fit for drinking. Drinking water should be

            stored in a clean vessel with a lid.


            Look at the pictures. You can see the ways in which water becomes dirty.















                       People washing                        Cattle bathing                     Releasing factory
                            clothes                             in water                         waste in water




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