Class-3 EVS Chapter-20 Drop by Drop, Additional Exercises in line with NCERT book / CBSE Syllabus


Chapter-20
Drop by Drop
Choose the correct answers:
1-    Water comes from
a.    Rain
b.    Melting of snow on mountains
c.    Both (√)
2-    Which of the following needs water
a.    Only plants
b.    Only animals
c.    Both plants and animals (√)
3-    Which of the following is used for cleaning water?
a.    Water purifier (√)
b.    Water cooler
c.    Water dispenser
4-    We should save water because;
a.    Water is precious (√)
b.    There is enough water for everyone
c.    Everyone talks about saving water
5-    Which of the following should be done to save water
a.    Use shower for bathing
b.    Keep the tap running while brushing
c.    Reuse the water used in various household activities (√)
Tick the activities for which water is needed:
⃝    Making tea (√)
⃝    Playing
⃝    Bathing (√)
⃝    Singing
⃝    Writing
⃝    Drinking (√)
⃝    Boating (√)
⃝    Kneading dough (√)
⃝    Cleaning the house (√)

 Click here for Marigold (English) Class- 3

Tick the activities for which water is not needed:
⃝    Cooking
⃝    Drinking
⃝    Bathing
⃝    Washing
⃝    Jumping (√)
⃝    Swimming
⃝    Rafting
⃝    Boating
⃝    Sleeping (√)
⃝    Dusting (√)


State whether the following statements are true or false:
1-    We should use only as much water as required.   (True)
2-    Water is always clean. (False)
3-    When we are thirsty, we should demand sufferings. (False)
4-    We should spread the message of saving water. (True)
5-    All living beings need water to live. (True)
6-    Drinking dirty water can make us I'll. (true)

Answer the following in questions:
Q. From where do the people in Madho's village fetch water for drinking?
Ans - The people in Madho’s family fetch water for d rinking from the nearby pond.

Q. Who fetches water in Madho's house?
Ans- In Madho's house, his father goes to fetch water in his camel- cart.

Q .Water collected in the tanka is mostly used for drinking. Why?
Ans- Water collected in the tanka is mostly used for drinking after cleaning because of the scarcity of water.


Q. Have you seen water flowing unnecessarily in your home, school or any other place? Where?
Ans- In home - while cleaning vessels
        At school - through a leaking tap

Suggest ways of saving water.
1 - Do not let the water tap keep running while brushing or shaving.
2- Use bucket in place of shower for bathing.
3 - Reuse the Water used for washing vegetables for watering the plants.
4- Mop the floor instead of washing.
5- Use tub for washing vessels in place of running tape.

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