Term 3 SA Model Question

6th Standard

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Science

Time : 02:30:00 Hrs
Total Marks : 60

    I. Choose the best answer

    10 x 1 = 10
  1. Mariner’s compass is used to fi nd the

    (a)

    speed

    (b)

    displacement

    (c)

    direction

    (d)

    motion

  2. 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

  3. 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

  4. Phenol is _______.

    (a)

    carbolic acid

    (b)

    acetic acid

    (c)

    benzoic acid

    (d)

    hydrochloric acid

  5. It is a biodegradable waste.

    (a)

    Plastic

    (b)

    Coconut Shell

    (c)

    Glass

    (d)

    Aluminium

  6. Usage of chemical pesticides and fertilisers causes ________ pollution.

    (a)

    Air pollution

    (b)

    Water pollution

    (c)

    Noise pollution

    (d)

    None of the above

  7. Natural Mosquito repellant is

    (a)

    Nutmag

    (b)

    Bamboo

    (c)

    Ginger

    (d)

    Neem

  8. Which is the national tree of India?

    (a)

    Neem tree

    (b)

    Jack tree

    (c)

    Banyan tree

    (d)

    Mango tree

  9. LINUX is a

    (a)

    Paid Software

    (b)

    Licensed Software

    (c)

    Free and Proprietary software

    (d)

    Free and Open source software

  10. Find out Paid and Proprietary software from the given list

    (a)

    Windows

    (b)

    MAC OS

    (c)

    Adobe Photoshop

    (d)

    All the above

  11. II. Fill in the blanks

    5 x 1 = 5
  12. Paper is not a ______ material.

    ()

    magnetic

  13. Water cycle is also called as_______.

    ()

    hydrological cycle.

  14. ____________ is called as farmer’s best friend.

    ()

    Earthworm

  15. Primary consumers that eat plants are called _________.

    ()

    herbivorous

  16. I am the state tree of Tamilnadu . Who am I____________?

    ()

    Palm tree

  17. III. Match the following

    5 x 1 = 5
  18. Cloud

  19. (1)

    RAM

  20. Soap

  21. (2)

    Input Device

  22. Cement

  23. (3)

    NaOH

  24. Hardware

  25. (4)

    RCC

  26. Keyboard

  27. (5)

    Water vapour

    IV. Answer any 10 in the following :

    5 x 2 = 10
  28. How do people in cities and rural areas get water for various purposes?

  29. Explain the uses of plaster of paris.

  30. Name some pollutants.

  31. What are the pollutions caused by the objects given below?
    a. Loud Speaker b. Plastic

  32. What is a spice?

  33. Take a glass of water with a few pins inside. How will you take out the pins without dipping your hands into water?

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

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

  36. Ravi is a farmer; he rears many cattle in his farm. His field has many bio wastes. Advise Ravi how to change this bio waste to compost by using vermi -composting techniques. Explain the benefits of vermi castings.

  37. What would happen if an organism is removed from the food chain?

  38. Write the uses of neem?

  39. What is Free and Open Source Software? Give any two examples?

  40. V. Answer any five questions

    5 x 5 =25
  41. You are provided with an iron needle. How will you magnetize it?

  42. 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.

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

  44. How are detergents manufactured?

  45. Write a short note on noise pollution.

  46. Write short notes on – Timber yielding plants.

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