Sreevatsa viswanathan Vivekananda vidyalaya sr. sec.
school chitlapakkam
                                      EVS
                               Water – A Precious Gift
Class: 3
I.Short Answers:
1. Why is water considered as a Precious gift? How does it impact our daily lives and the
environment?
Ans: * We cannot live more than 3 days without drinking water.
          We cannot lead daily life like drinking, washing vessels, cleaning, bathing etc.
          All plants and animals need water,.
2. How does rain water reach underground and form water sources?
Ans: * Rainwater gets soaked into the soil.
          It slowly flow under the soil to join a stream or a pond.
          Some of the water gets stored under the ground between rocks and soil.
3. What are the common ways that water is wasted in home and school? Suggest few
solutions to reduce water in your daily life.
Ans: *     Washing dishes with running water.
          Long showers
          Leakage of water from pipes and tapes.
          Not proper rain water harvesting.
   Solutions:
          Check for leaks in the pipes
          Take short showers.
          Turn off the tap while not is use
          Proper storing of rainwater.
II. Long Answers:
   1. How would you design a birdbath to help birds during the hot summer months? What
      materials would you use to make it?
Ans: * Take a shallow and wide bowl of depth less than 10 cm.
          Fill bowl with fresh water
          Add stones and pebbles for birds to perch.
          Place it in balcony , yard or terrace.
          Change the water frequently
          Clean the birdbath with a scrubber twice a week.
      Materials:
          Bowl ( shallow and wide) , Stones and pebbles , Fresh water.
II. Grouping:
   1. Group the following in Natural sources of water and Artificial sources of water.
          Natural Sources of water                   Artificial sources of water
                Rain                                         Well
                River                                      Tube well
                Stream                                      Dam
                Spring                                     Canal
                Sea
               Underground, Waterfall
   2. Group the following in water storage vessels in olden days and modern days.
          Water storage vessels in olden days       Water storage vessels in modern days
                       Clay pot                              Steel pot
                      Clay surahi                           Aluminium pot
                      Copper vessel                         Glass bottle
                      Brass pot                             Plastic bottle
                                                            Plastic bucket
IV. Draw and name any two natural sources of water and artificial sources of water .
     1. Natural sources of water                         2. Artificial sources of water
                Rain , River                                       Well , Dam