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Important Question Part-V

6th Standard

    Reg.No. :
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Science

Time : 03:00:00 Hrs
Total Marks : 200

    Section - I

    36 x 1 = 36
  1. Quantity that can be measured is called

    (a)

    Physical quantity

    (b)

    unit

    (c)

    Measurement

    (d)

    motion

  2. Twenty decimetre is equal to_________

    (a)

    2 km

    (b)

    20 cm

    (c)

    2 metre

    (d)

    20 metre

  3. The moon's gravitational pull is one_____________of the earth's pull.

    (a)

    seventh

    (b)

    sixth

    (c)

    Fifth

    (d)

    Fourth

  4. Oscillatory motion among the following is__________

    (a)

    Rotation of the earth about its axis

    (b)

    Revolution of the moon about the earth

    (c)

    To and fro movement of a vibrating string

    (d)

    All of these.

  5. People walking in a crowded street is example of_________motion

    (a)

    linear

    (b)

    circular

    (c)

    rotatory

    (d)

    zigzag

  6. Periodic motion among the following is___________

    (a)

    sabling swing in wind

    (b)

    revolution of the moon around the earth

    (c)

    a coconut falling from a tree

    (d)

    paper flight moving

  7. A___________ is the fastest land animal

    (a)

    Horse

    (b)

    Lion

    (c)

    Cheetah

    (d)

    Tiger

  8. Filtration method is effective in separating ___________ mixture

    (a)

    solid-solid

    (b)

    solid-liquid

    (c)

    liquid-liquid

    (d)

    liquid-gas

  9. One dot that you make with Your pen has more than ___________ Lakh Molecule

    (a)

    One

    (b)

    Two

    (c)

    Four

    (d)

    Three

  10. Very tiny insoluble solid separated from a liquid is__________

    (a)

    Winnowing

    (b)

    Churning

    (c)

    Sieving

    (d)

    Filtration

  11. The habitat of water hyacinth

    (a)

    Aquatic

    (b)

    Terrestrial

    (c)

    Desert

    (d)

    Mountain

  12. ___________ is a natural science concerned with study of life and living organisms.

    (a)

    Chemistry

    (b)

    Biology

    (c)

    Zoology

    (d)

    Physics

  13. The underground part of the main axis of a plant is known as_________.

    (a)

    shoot

    (b)

    node

    (c)

    root

    (d)

    leaf

  14. The __________ forest in South America produces half of the world's oxygen supply.

    (a)

    Taiga

    (b)

    Congo rain

    (c)

    Amazon rain

    (d)

    Darin tree

  15. Which of the following are characteristics of living beings?
    (i) Respiration
    (ii) Reproduction
    (iii) Adaptation
    (iv) Excretion
    Choose the correct sequence

    (a)

    (i), (ii), and (iv) only

    (b)

    (i), (ii) only

    (c)

    (ii) and (iv) only

    (d)

    (i), (ii), (iii) and (iv)

  16. Lizards are walk with four legs and is known as

    (a)

    Bipedal

    (b)

    Tripedal

    (c)

    Monopedal

    (d)

    quadripedal

  17. Among the following which one is Bird Sanctuary located in Tamilnadu___________.

    (a)

    Vayanad

    (b)

    Guindy Park

    (c)

    Vedanthangal

    (d)

    All

  18. Bacteria are very small _________ microorganism.

    (a)

    Prokaryotic

    (b)

    Eukaryotic

    (c)

    Protozoa

    (d)

    Acellular

  19. _____________is the highly rich source of protein

    (a)

    nuts

    (b)

    grams

    (c)

    chicken

    (d)

    soya bean

  20. ___________is the bacterial disease, it transit through containination of wounds wit" the bacteria.

    (a)

    Cholera

    (b)

    Tetanus

    (c)

    Typhoid

    (d)

    Pneumonia

  21. When was the first computer introduced?

    (a)

    1980

    (b)

    1947

    (c)

    1946

    (d)

    1985

  22. Pick out the odd one.

    (a)

    Calculator

    (b)

    Abacus

    (c)

    Flash card

    (d)

    Laptop

  23. One litre of water at 30o C is mixed with one litre of water at 50o C. The temperature of the mixture will be

    (a)

    80o C

    (b)

    More than 50°C but less than 80o C

    (c)

    20o C

    (d)

    around 40o C

  24. Choose the symbol for battery

    (a)

    (b)

    (c)

    (d)

    _____________

  25. __________ is a good conductor

    (a)

    silver

    (b)

    wood

    (c)

    rubber

    (d)

    plastic

  26. When ice melts to form water, change occurs in its

    (a)

    position

    (b)

    colour

    (c)

    state

    (d)

    composition

  27. Out of the following an example of a desirable change is

    (a)

    rusting

    (b)

    change of seasons

    (c)

    earthquake

    (d)

    flooding

  28. Air pollution leading to Acid rain is a

    (a)

    reversible change

    (b)

    fast change

    (c)

    natural change

    (d)

    human made change

  29. The constituent of air that supports combustion is _________________

    (a)

    Nitrogen

    (b)

    carbon-di-oxide

    (c)

    Oxygen

    (d)

    water vapour

  30. ______________ and ________________ are the two gases, which when taken together, make up about 99 percentage of air.
    I.Nitrogen
    II. carbon-di-oxide
    III. Noble gases
    IV. Oxygen

    (a)

    I and II

    (b)

    I and III

    (c)

    II and IV

    (d)

    I and IV

  31. The unit of measurement used for expressing dimension (size) of cell is _________

    (a)

    centimeter

    (b)

    millimeter

    (c)

    micrometer

    (d)

    meter

  32. Under the microscope Priya observes a cell that has a cell wall and distinct nucleus. The cell that she observed is

    (a)

    a plant cell

    (b)

    an animal cell

    (c)

    a nerve cell

    (d)

    a bacteria cell

  33. Most organelles in a eukaryotic cell are found in the

    (a)

    Cell wall

    (b)

    cytoplasm

    (c)

    nucleus

    (d)

    Vacuole

  34. Circulatory system transports these throughout the body

    (a)

    Oxygen

    (b)

    Nutrient

    (c)

    Hormones

    (d)

    All of these

  35. Which one of the following is an output device?

    (a)

    Mouse

    (b)

    Keyboard

    (c)

    Speaker

    (d)

    Pendrive

  36. Which one of the following is an input device?

    (a)

    Speaker

    (b)

    Keyboard

    (c)

    Monitor

    (d)

    Printer

  37. Section - II

    23 x 2 = 46
  38. Arrange in increasing order of unit
    1 Metre, 1 centimetre, 1 kilometre, and 1 millimetre.

  39. Define the term matter.

  40. Give an example for mixture and justify your answer with reason.

  41. Classify the plants on the basis of their habitat.

  42. Identify the desert plants from the following - Cactus, Hydrilla, Mango and Rose.

  43. Name the locomotory organs of an Amoeba.

  44. Write two examples for each of the following.
    a) Food items rich in fat.
    b) Vitamin deficiency diseases.

  45. What is the main feature of a microorganism?

  46. What is a Computer?

  47. Write a short note on Data.

  48. Make a list of electrical equipments at home which we get heat from.

  49. Identify the conductor from the following figures.

  50. Assertion (A): It is very easy for our body to receive electric shock.
    Reason (R): Human body is a good conductor of electricity.
    a. Both A and R are correct and R is the correct explanation for A.
    b. A is correct, but R is not the correct explanation for A.
    c. A is wrong but R is correct.
    d. Both A and R are correct and R is not the correct explanation for A.

  51. What kind of a change is associated with decaying of a plants?

  52. Define a slow change.

  53. What is a solution?


  54. What will happen if we remove plants from the aquarium?


  55. What will happen if we remove the fish from the aquarium and keep it (with green plants) in a dark place?

  56. What are the essential components of a cell?

  57. What are the organelles found only in plant cell?

  58. Which one is called as “Area of movement"?

  59. Define the term "Trachea".

  60. Name the five important sense organs.

  61. Section - III

    10 x 3 = 30
  62. A vehicle covers a distance of 400km in 5 hours. Calculate its average speed.

  63. A rubber ball changes its shape on pressing. Can it be called a solid?

  64. Compare the tap root and fibrous root systems.

  65. Differentiate between Unicellular and Multicellular organisms.

  66. Distinguish between heat and temperature.

  67. Can the cell used in the clock gives us an electric shock? Justify your answer

  68. Can deforestation be considered a desirable change? Explain.

  69. Why do traffic assistants wear a mask on duty?

  70. Identify any four parts of the Plant cell.

  71. Write a short note on rib cage.

  72. Section - IV

    13 x 5 = 65
  73. How will you measure the volume of irregular objects?

  74. What is motion? Classify different types of motion with examples.

  75. Fill with examples:

  76. Using suitable apparatus from your laboratory separate the mixture of chalk powder, mustard oil, water and coins. Draw a flowchart to show the separation process.

  77. Make a list of the functions of root and stem.

  78. Tabulate the vitamins and their corresponding deficiency diseases.

  79. Explain in detail the Applications of computer.

  80. When a window is accidentally left open on a winter night, will you feel uncomfortable because the cold is getting in, or because the heat is escaping from the room?

  81. Write short notes on conductors and insulators.

  82. When a candle is lit the following changes are observed.
    a. Wax melts.
    b. Candle keeps burning.
    c. The size of the candle decreases.
    d. The molten wax solidifies
    e. Which of the changes can be reversed? Justify your answer.

  83. How do plants and animals maintain the balance of oxygen and carbon-dioxide in air?

  84. Tabulate any five cell organelles and their function.

  85. What will happen if the diaphragm shows no movement?

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