Term 3 Water Important Questions

6th Standard

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Science

Time : 01:00:00 Hrs
Total Marks : 60
    5 x 1 = 5
  1. Around 97% of water available on earth_________ is water

    (a)

    fresh

    (b)

    pure

    (c)

    salty

    (d)

    polluted

  2. Which of the following is not a part of water cycle?

    (a)

    evaporation

    (b)

    condensation

    (c)

    rain

    (d)

    distillation

  3. Which of the following processes add water vapour to the atmosphere?
    i. Transpiration ii. Precipitation iii. Condensation iv. Evaporation

    (a)

    ii and iii

    (b)

    ii and iv

    (c)

    i and iv

    (d)

    i and ii

  4. About 30% of the fresh water is found in?

    (a)

    glaciers

    (b)

    ground water

    (c)

    other sources of water

    (d)

    0.3%

  5. Using R.O. plant at home eliminates lot of non-potable water. The best way to effectively use the expelled water of R.O. plant is_________.

    (a)

    make the expelled water go and seep near the bore well

    (b)

    use it for watering plants

    (c)

    to drink the expelled water after boiling and cooling

    (d)

    to use for cooking as the water is full of many nutrients

  6. 5 x 1 = 5
  7. Only _______ percent of natural water is available for human consumption.

    ()

    3

  8. The process of changing water into its vapour is called____________.

    ()

    evaporation.

  9. _________is built on rivers to regulate water flow and distribute water

    ()

    Dams

  10. Water levels in rivers increase greatly during_________.

    ()

    rain.

  11. Water cycle is also called as_______.

    ()

    hydrological cycle.

  12. 5 x 1 = 5
  13. Flood

  14. (1)

    Pole

  15. Surface water

  16. (2)

    Water vapour

  17. Sun light

  18. (3)

    Increased rain fall

  19. Cloud

  20. (4)

    Evaporation

  21. Frozen water

  22. (5)

    Lake

    5 x 2 = 10
  23. Name four different sources of water

  24. How do people in cities and rural areas get water for various purposes?

  25. We could see clouds almost every day. Why doesn’t it rain daily?

  26. Name the places where water is found as ice.

  27. How do aquatic animals manage to live in Arctic and Antarctic Circle?

  28. 3 x 5 = 15
  29. What is potable water? List down its characteristics

  30. Who is known as waterman of India? Browse the net and find the details about the award, the waterman received for water management. State the findings by drafting a report.

  31. What is rainwater harvesting? Explain in a few sentences how it can be used in houses.

  32. 5 x 1 = 5
  33. Water present in rivers, lakes and ponds is unfi t for use by human beings

    (a) True
    (b) False
  34. Seas are formed when the water table meets the land surface

    (a) True
    (b) False
  35. The evaporation of water takes place only in sunlight

    (a) True
    (b) False
  36. Condensation results in the formation of dew on grass.

    (a) True
    (b) False
  37. Sea water can be used for irrigation as such.

    (a) True
    (b) False
  38. 5 x 3 = 15
  39. Differentiate between surface water and ground water.

  40. Write a few slogans of your own on the topic “Save Water”.

  41. About 71% of earth’s surface is covered with water, then why do we face scarcity of water?

  42. Give reason for the following statement – Sewage should not be disposed of in rivers or oceans before treatment.

  43. To clean the spectacles, people often breathe out on glasses to make them wet. Explain why do the glasses become wet.

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