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Important Question Part-III

6th Standard

    Reg.No. :
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Science

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

    Section - I

    36 x 1 = 36
  1. The girth of a tree can be measured by

    (a)

    Metre scale

    (b)

    plastic ruler

    (c)

    Metre rod

    (d)

    measuring tape

  2. Volume of solid is_________

    (a)

    m2

    (b)

    m

    (c)

    m3

    (d)

    none

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

    (a)

    seventh

    (b)

    sixth

    (c)

    Fifth

    (d)

    Fourth

  4. Gita rides with her father’s bike to her uncle’s house which is 40 km away from her home. She takes 40 minutes to reach there.
    Statement 1: She travels with a speed of 1 km/minute.
    Statement 2: She travels with a speed of 1 km/hour.

    (a)

    Statement 1 alone is correct.

    (b)

    Statement 2 alone is correct.

    (c)

    Both statement 1 and 2 are correct.

    (d)

    Neither statement 1 nor statement 2 is correct.

  5. 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

  6. _________________are robots scaled down to microscopic size in order to put them with very small spaces to perform a function

    (a)

    car robots

    (b)

    home robots

    (c)

    game robots

    (d)

    nanobots

  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. A standard sheet of paper is about___________ atoms thick.

    (a)

    Thousands

    (b)

    Crores

    (c)

    Lakhs

    (d)

    Million

  10. __________is a smallest particle

    (a)

    Molecule

    (b)

    Element

    (c)

    Atom

    (d)

    Substance

  11. The habitat of water hyacinth

    (a)

    Aquatic

    (b)

    Terrestrial

    (c)

    Desert

    (d)

    Mountain

  12. On the lower side of the leaf there are tiny pores or openings known as ____________

    (a)

    Leaf base

    (b)

    mid rib

    (c)

    petiole

    (d)

    stomato

  13. Length of Nile river is_____________

    (a)

    6560 km

    (b)

    6650 km

    (c)

    6506 km

    (d)

    5606 km

  14. The first land plants are____________

    (a)

    Neem tree

    (b)

    hibiscus'

    (c)

    banyan tree

    (d)

    mosses and liver worts

  15. Which animal has the special organs of breathing called gills

    (a)

    Earthworm

    (b)

    Fox

    (c)

    Fish

    (d)

    frog

  16. Which is not a biotic community among the following?

    (a)

    Plants

    (b)

    Birds

    (c)

    Air

    (d)

    Elephant

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

    (a)

    Bipedal

    (b)

    Tripedal

    (c)

    Monopedal

    (d)

    quadripedal

  18. Our body needs _________ for muscle building

    (a)

    carbohydrate

    (b)

    fat

    (c)

    Protein

    (d)

    Water

  19. Among the Vitamins which one is the water soluble Vitamin

    (a)

    Vitamin A

    (b)

    Vitamin B

    (c)

    Vitamin D

    (d)

    Vitamin E

  20. ___________is an a-cellular agent that replicates only inside the cells ofthe other living organism.

    (a)

    Bacteria

    (b)

    Protozoa

    (c)

    Fungi

    (d)

    Virus

  21. Which of the following is another form of computer?

    (a)

    Blackboard

    (b)

    Mobile

    (c)

    Radio

    (d)

    Book

  22. Pick out the odd one.

    (a)

    Calculator

    (b)

    Abacus

    (c)

    Flash card

    (d)

    Laptop

  23. When an object is heated, the molecules that make up the object

    (a)

    begin to move faster

    (b)

    lose energy

    (c)

    become heavier

    (d)

    become lighter

  24. The device which converts chemical energy into electrical energy is

    (a)

    fan

    (b)

    solar cell

    (c)

    cell

    (d)

    television

  25. In which among the following circuits does the bulb glow?

    (a)

    (b)

    (c)

    (d)

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

    (a)

    position

    (b)

    colour

    (c)

    state

    (d)

    composition

  27. Drying of wet clothes in air is an example of

    (a)

    Chemical change

    (b)

    Undesirable change

    (c)

    irreversible change

    (d)

    physical change

  28. Formation of curd from milk is

    (a)

    a reversible change

    (b)

    a fast change

    (c)

    an irreversible change

    (d)

    an undesirable change

  29. ____________ is the percentage of nitrogen in air.

    (a)

    78%

    (b)

    21%

    (c)

    0.03%

    (d)

    1%

  30. Nitrogen is used in the food packaging industry because it ________________

    (a)

    provides colour to the food

    (b)

    provides oxygen to the food

    (c)

    adds proteins and minerals to the food

    (d)

    keeps the food fresh

  31. 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

  32. Which one of the following is not an unicellular organism?

    (a)

    Yeast

    (b)

    Amoeba

    (c)

    Spirogyra

    (d)

    Bacteria

  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 input device?

    (a)

    Speaker

    (b)

    Keyboard

    (c)

    Monitor

    (d)

    Printer

  36. Pen drive is ___________ device

    (a)

    Output

    (b)

    Input

    (c)

    Storage

    (d)

    Connecting cable

  37. Section - II

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

  39. How can husk or fine dust particles be separated from rice before cooking?

  40. Why do we separate mixtures?

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

  42. Define the term habitat.

  43. Which structure helps the bird to change its direction while Dying in air?

  44. Differentiate between carbohydrate and protein

  45. Why should the fruits and vegetables not to be washed after cutting?

  46. Who are the pioneers/ forerunners of computer?

  47. Differentiate Hardware and Software.

  48. What is temperature?

  49. In the given circuit diagram, which of the given switch(s) should be closed. So that only the bulb A glows.

  50. What type of circuit is there in a torch light?

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

  52. What happens when cane sugar is strongly heated? Mention any two changes in it.

  53. What is a solution?


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

  55. What is atmosphere? Name the five layers of atmosphere

  56. What are the essential components of a cell?

  57. Give any three examples of eukaryotic cell?

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

  59. Describe about skeletal system.

  60. Name the important parts of the eye.

  61. Section - III

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

  63. Why do gases not have fixed shape?

  64. Distinguish between terrestrial and aquatic habitats.

  65. Differentiate between Unicellular and Multicellular organisms.

  66. What difference do you think heating the solid will make in their molecules ?

  67. Silver is a good conductor but it is not preferred for making electric wires. Why?

  68. What type of changes is associated with germination of a seed? Explain

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

  70. Why cells are called building blocks of life?

  71. Write a short note on rib cage.

  72. Section - IV

    13 x 5 = 65
  73. Find the answer for the following questions within the grid.

    1. 10-3 is one__________.
    2. SI Unit of time__________.
    3. Cross view of reading for a measurement leads to__________.
    4. __________is the one what a clock reads. 
    5. __________is the amount of substance present in an object.
    6. __________can be taken to get the final reading of the recordings of different of students for a single measurement.
    7.__________is a fundamental quantity.
    8.__________shows the distance covered by an automobile. 
    9. A tailor use __________ to take measurements to stitch a cloth. 
    10. Liquids are measured with this physical quantity. 

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

  75. Fill with examples:

  76. Distinguish between properties of Solid, liquid, gas. Draw suitable diagram

  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. If you heat a circular disk with a hole, what change do you expect in the diameter of the hole? Remember that the effect of heating increases the separation between any pair of particles.

  81. What is the source of electricity? Explain the various power stations in India?

  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. Why do we sweat more in summer?

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