Page 1 :
L8-Our Need For Water, Q1.Fill in the blanks:, 1) Water keeps the blood thin., 2) Animals bathe in water., 3) People take care to provide drinking water, for the animals they keep., 4) We have to go to the watering place in a, forest to see wild animals., 5) Water is very important in the lives of, people., 6) Roots of plants absorb the rainwater that, has seeped into the soil., 7) Unwanted substances leave our body, through urine., 8) When there is lack of water, we get thirsty., 9) People from village wash their clothes near, river.
Page 2 :
10) Plant needs water to live., 11) Farmers water the crops in their farm., Q2.Underline the correct word:, 1) Our mouth waters/scratches when we see, a tamarind pod., 2) When we get a cut ,it bleeds/feeds., 3) Digestion/Transport of food in the body, occurs due to water., 4) Animals/shrubs take bath in water., 5) Crabs need/does not need water., 6) Roots/Leaves of the plant absorb water, from the soil., 7) We need to water a garden more often in, summer/winter., 8) Water chestnut grows in water/land., Q3.Use your brain power!
Page 3 :
1) Why do we need to water a garden more, often in summer?, Ans-During summer, plants in the garden, need more water. Due to Sun’s heat soil, dries up. The saplings do not get water for, absorption and start wilting due to lack of, water.Therefore, we need to water a garden, more often in summer., 2) Why is water in ponds and wells much, reduced in summer?, Ans- Due to Sun’s heat,water in ponds and, wells get evaporated. Therefore,water in, ponds and well is much reduced in summer., Q4. Answer the following in brief:, 1) In which different forms is water present in, our bodies?, Ans-Water is present in the body in the form, of substances that flow. Tears,saliva,water
Page 4 :
running from nose, blood are substances in, which water is present., 2) Why do we drink water?, Ans- We need water for proper functioning, of our body.When there is lack of water in, the body ,we feel thirsty.Therefore ,we drink, water to quench or satisfy our thirst., 3) Why do cows,buffaloes and goats come to, the source of water?, Ans:-Cows,buffaloes and goats come to the, source of water to drink water and bathe, themselves in water., 4) How do we know that water is present in, plants?, Ans:-From the grated cucumber and lemon, slice, orange,watermelon,grapes we get the, juice .This shows That water is present in, plants.
Page 5 :
5) Why is farming not possible without, enough water?, Ans:-Crops need lot of water. If they do not, get enough water they will not survive., Therefore, farming is not possible without, enough water., 6) Why do big cities need more water?, Ans:-Many people stay in big cities. There, are industries in the big cities. So the need, for water increases. Therefore,there is more, need of water in the big cities., 7) From where do plants in forests get water?, Ans:-The rain water seeps into the soil.The, roots of trees absorb the seeped water from, the soil. In this way the plants in the forest, get water.
Page 6 :
8) Why do you go near the waterhole in a, jungle to see wild animals?, Ans:-Wild animals also need water. They go, near the water hole in the forest to drink, water when they are thirsty. So we go near, the waterhole to see the wild animals., 9) How will you use water with responsibility?, Write any five points., Ans:-1)By not throwing away the stored, water.2)By not keeping the tap open for a, long time.3)By not wasting lots of water at, the time of washing,bathing,cleaning, utensils etc.4)By not wasting the water, during festival like holi., 10) The water in the public source has to be, kept clean., Ans:-We can keep the water in the public, sources clean by not allowing
Page 7 :
bathing,washing clothes and cattles near the, public sources., 11) In summer animals have to wander, around in search of water.You have to, provide water to these thirsty animals., Ans:-We can provide them water by building, small tanks or ponds., 12) Write the names of the birds that are, seen near the water body., Ans:-Lapwing, kingfisher,Egret etc are the, birds that are seen near the water body., 13) Write the names of the plants that grow, in the water., Ans:-Lotus,Chestnut,Hyacinth,Hydrilla are, the plants that grow in water.
