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Class 4 th B EVS

Class 4 th B EVS. A RIVER’s TALE PRESENTED:- BY BALJIT KAUR. A river starts its journey from the mountain to plains. Physical Map of India. The colour of the river changes as it flows downwards to the plains. What is the colour of the river where it begins?

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Class 4 th B EVS

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  1. Class 4thB EVS A RIVER’s TALE PRESENTED:- BY BALJIT KAUR

  2. A river starts its journey from the mountain to plains.

  3. Physical Map of India

  4. The colour of the river changes as it flows downwards to the plains. • What is the colour of the river where it begins? • At which places did the colour of the water in the river changes.

  5. . • What is the colour of the river where it begins? • What can be seen in the river before it reaches the village? • At which places did the colour of the water in the river changes?

  6. Now see the colour of the water • Water pollution is the main cause of the change in colour of the river water. How does water become dirty? You saw in the pictures that as the river flowed through many villages, towns and cities the water changed. The people used the river water for many different things such as washing clothes,

  7. Bathing animals and cleaning utensils. • Many of these activities made water dirty. • Have you seen dirty water in the river or pond? • The water in the river keep changing as it flowed through various places. • Where the water of rivers goes? • Have you ever been near a river or sea? • Is the water from the sea drinkable?

  8. Why the water of the sea is not drinkable? • Are there any changes in the water during summers, the rainy seasons and in winters? • What kind of trees and plants grow around it ?

  9. Have you ever seen or read about floods? • What happens when there is flood? • Have you ever read about Drought? • Floods and drought are man made changes or natural change?

  10. ACTIVITY • LET’S SEE THING DISSOLVED IN WATER –DID NOT DISSOLVED IN WATER. • COLOUR OF WATER CHANGES , COLOUR OF WATER DOES NOT CHANGE • THINGS NEEDED Sugar, salt lemon juice, soap water,haldi, flour,dal ,sherbet,oil ect.

  11. Home assignment Home assignment Give example; 1.Three pottutants of water; 2 Five sources of water. 3. Six animals that live in water 4 Three plants that grow in water.

  12. Project • Paste a physical map of India and show these famous rivers of INDIA. • Ganga • Yamuna • BRAHMAPUTRA • Sutlej • Godavari

  13. Draw pictures showing any two ways of cleaning the water. • Paste five sources of water.

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