VI STD Model Question Paper

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. A freely suspended magnet always comes to rest in the ________ direction

    (a)

    North - east

    (b)

    South - west

    (c)

    East - west

    (d)

    North - south

  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. The saponification of a fat or oil is done using _______________ solution for hot process.

    (a)

    Potassium hydroxide

    (b)

    Sodium hydroxide

    (c)

    Hydrochloric acid

    (d)

    Sodium chloride

  5. Producers are________

    (a)

    Animals

    (b)

    Birds

    (c)

    Plants

    (d)

    Snakes

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

    (a)

    Air pollution

    (b)

    Water pollution

    (c)

    Noise pollution

    (d)

    None of the above

  7. One of the following birds is an example of plant pollinator

    (a)

    Duck

    (b)

    Parrot

    (c)

    Humming bird

    (d)

    Dove

  8. Which of the following is not a root ?

    (a)

    Potato

    (b)

    Carrot

    (c)

    Radish

    (d)

    Turnip

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

    (a)

    Windows

    (b)

    MAC OS

    (c)

    Adobe Photoshop

    (d)

    All the above

  10. _________is a Operating System.

    (a)

    Android

    (b)

    Chrome

    (c)

    Internet

    (d)

    Pendrive

    1. II. Fill in the blanks

    5 x 1 = 5
  11. Artifi cial magnets are made in different shapes such as __________, __________ and ____________.

    ()

    oval, cylindrical, disc

  12. Water cycle is also called as_______.

    ()

    hydrological cycle.

  13. ___________ fertilizer is ecofriendly

    ()

    Organic

  14. The 3R’s are Reduce, __________ and Recycle.

    ()

     Reuse

  15. The edible seeds of leguminous plants are called_________.

    ()

    Pulses.

  16. III. Match the following

    5 x 1 = 5
  17. Frozen water

  18. (1)

    Pole

  19. Soap

  20. (2)

    Geogebra

  21. Gypsum

  22. (3)

    NaOH

  23. Software

  24. (4)

    Input Device

  25. Keyboard

  26. (5)

    CaSO4 2H2O

    IV. Answer any 10 in the following :

    10 x 2 =20
  27. How do people in cities and rural areas get water for various purposes?

  28. Explain the uses of plaster of paris.

  29. Define ecosystem.

  30. Give one example of a food chain in an aquatic ecosystem?

  31. What are the uses of timber?

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

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

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

  35. Why earthworm is called as farmer’s friend?

  36. What is biodegradable waste?

  37. Look at the diagram given below and answer the following questions.
    a. Soil fertility is increased by bacteria How?

    b. Honey bees are essential for the reproduction of the plants Why?

  38. What is Hardware and Software?

  39. V. Answer any 4 questions

    5 x 5 = 25
  40. How does the electromagnetic train work?

  41. What is potable water? List down its characteristics

  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. How are detergents manufactured?

  44. Write a short note on noise pollution.

  45. Write short notes on – Timber yielding plants.

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