7th Class Science Sample Paper

done Science Olympiad Model Test Paper-5 Total Questions - 50    [Download]

• question_answer1)
  The process of nutrition occurs:
  A)
  Only in plants
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  B)
  Only in animals
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  C)
  Only in insects
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  D)
  In all living things
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  E)
  None of these
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• question_answer2)
  World water day is observed on:
  A)
  22 March
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  B)
  14 November
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  C)
  2 October
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  D)
  21 December
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  E)
  None of these
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• question_answer3)
  Forests are not responsible for:
  A)
  Providing habitats for large variety of animals
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  B)
  Purifying air
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  C)
  Maintaining water table in nature
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  D)
  Damaging ozone layer
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  E)
  None of these
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• question_answer4)
  Plant X does not have chlorophyll so it has to depend on other plants for its food. Identify the plant X from the following.
  A)
  Babool
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  B)
  Dodder
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  C)
  Venus flytrap
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  D)
  Grass
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  E)
  None of these
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• question_answer5)
  Which one of the following is not a part of human digestive system?
  A)
  Buccal cavity    
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  B)
  Oesophagus
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  C)
  Stomach
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  D)
  Rectum
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  E)
  None of these
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• question_answer6)
  Which one of the following statements about amoeba is incorrect?
  A)
  Amoeba is a unicellular organism
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  B)
  Amoeba has no fixed shape
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  C)
  Amoeba uses its pseudopodia to catch food
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  D)
  Amoeba has a mouth called pseu-domouth for removing undigested food
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  E)
  None of these
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• question_answer7)
  Which one of the following is not a type of silk?
  A)
  Eri silk
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  B)
  Kosa silk
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  C)
  Moth silk
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  D)
  Mulberry silk
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  E)
  None of these
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• question_answer8)
  Angora wool is obtained from angora:
  A)
  goat
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  B)
  sheep
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  C)
  camel
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  D)
  yak
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  E)
  None of these
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• question_answer9)
  In the celsius scale of temperature, the temperature of melting ice is:
  A)
  \[4{}^\circ C\]
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  B)
  \[1{}^\circ C\]  
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  C)
  \[0{}^\circ C\]  
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  D)
  \[100{}^\circ C\]          
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  E)
  None of these
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• question_answer10)
  With the help of the instrument given below, we can measure:
  A)
  Wind direction at a place
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  B)
  Wind speed at a place
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  C)
  Atmospheric pressure at a place
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  D)
  Temperature of our body
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  E)
  None of these
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• question_answer11)
  Acidic solution and basic solution turn china rose indicator to _____ and _____ respectively.
  A)
  magenta, green
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  B)
  magenta, blue
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  C)
  blue, green
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  D)
  yellow, red
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  E)
  None of these
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• question_answer12)
  Which one of the following statements is incorrect about weather?
  A)
  Weather is the day to day condition at a place with respect to sunshine, wind direction, rainfall etc.
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  B)
  Temperature and humidity are elements of weather
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  C)
  Weather at a place is constant
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  D)
  All types of weather are caused by sun
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  E)
  None of these
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• question_answer13)
  Which one of the following regions of earth receives minimum sunlight?
  A)
  Tropical region
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  B)
  Subtropical region
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  C)
  Temperate region
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  D)
  Polar region
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  E)
  None of these
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• question_answer14)
  Which one of the following natural phenomena occurs in the atmosphere of the earth?
  A)
  Thunderstorm
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  B)
  Cyclone
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  C)
  Tornado
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  D)
  All of these
  done clear
  E)
  None of these
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• question_answer15)
  Which one of the following terms best describes the eye of a cyclone?
  A)
  calm and cloudless area
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  B)
  very heavy rain and continue lightening
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  C)
  high speed wind and heavy rain
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  D)
  light rain and strong wind
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  E)
  None of these
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• question_answer16)
  'Litmus' a natural dye is an extract of which of the following?
  A)
  China rose
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  B)
  Beetroot
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  C)
  Lichen
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  D)
  Blue berries
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  E)
  None of these
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• question_answer17)
  Galvanization is a process used to prevent the rusting of which of the following?
  A)
  Iron
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  B)
  Zinc
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  C)
  Aluminium
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  D)
  Copper
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  E)
  None of these
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• question_answer18)
  Which one of the following layers of soil contains the least humus?
  A)
  A-horizon
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  B)
  B-horizon
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  C)
  C-horizon
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  D)
  All of these
  done clear
  E)
   None of these
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• question_answer19)
  Which one of the following types of soil is the best for making pots, bricks, toys and statues?
  A)
  Clayey soil
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  B)
  Loamy soil
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  C)
  Sandy soil
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  D)
  Both (B) and (c)
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  E)
  None of these
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• question_answer20)
  Which one of the following organisms obtains energy by anaerobic respiration?
  A)
  Mosquito
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  B)
  Amoeba
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  C)
  Fish
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  D)
  Housefly
  done clear
  E)
  None of these
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• question_answer21)
  Breathing involves the movement of the:
  A)
  Rib cage and diaphragm
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  B)
  Pancreas and diaphragm
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  C)
  Rib cage and ulna
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  D)
  Ulna and tibia
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  E)
  None of these
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• question_answer22)
  Which one of the following organ systems is responsible for the transportation of food, water and oxygen from one part to the other part of our body?
  A)
  Respiratory system
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  B)
  Circulatory system
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  C)
  Skeletal system
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  D)
  Digestive system
  done clear
  E)
  None of these
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• question_answer23)
  Our heart has four compartments called chambers. The upper two chambers are called _____ and the lower two chambers are called _____.
  A)
  atria, ventricles
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  B)
  ventricles, atria
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  C)
  pulmonary artery and pulmonary vein
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  D)
  aorta, vena cava
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  E)
  None of these
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• question_answer24)
  Xylem vessels are not present in which one of the following parts of a mango plant?
  A)
  Root     
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  B)
  Stem
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  C)
  Branch
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  D)
  Leaf
  done clear
  E)
  None of these
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• question_answer25)
  Water reaches great heights in the trees because of suction pull caused by:
  A)
  Translocation    
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  B)
  Transpiration
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  C)
  Pollination
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  D)
  Photosynthesis
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  E)
  None of these
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• question_answer26)
  Which one of the following parts is called vegetative parts of a plant?
  A)
  Stem
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  B)
  Root
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  C)
  Leaf
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  D)
  All of these
  done clear
  E)
  None of these
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• question_answer27)
  Which one of the following is moving with non-uniform speed?
  A)
  A
  done clear
  B)
  B
  done clear
  C)
  C
  done clear
  D)
  D
  done clear
  E)
  None of these
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• question_answer28)
  What is a battery?
  A)
  A group of cells joined in series
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  B)
  A cell joined with open switch
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  C)
  Group of conducting circular wire
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  D)
  A circuit consists of conducting wire, switch and a cell
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  E)
  None of these
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• question_answer29)
  Which one of the following statements is incorrect?
  A)
  The image formed on a cinema screen is an example of real image
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  B)
  The image formed in a pinhole camera is an example of virtual image
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  C)
  A convex lens can form real image
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  D)
  A concave lens can form virtual image
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  E)
  None of these
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• question_answer30)
  The organic impurities present in sewage are:
  A)
  Animal waste
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  B)
  Urea
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  C)
  Fruits and vegetable wastes
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  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer31)
  A woman going with a boy is asked by another woman about the relationship between them. The woman replied, ?My uncle and the uncle of his maternal uncle is the same?. How is the lady related with that boy?
  A)
  Aunt and Nephew
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  B)
  Mother and Son
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  C)
  Grandson and Grandmother
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  D)
  Aunt and Son
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  E)
  None of these
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• question_answer32)
  Replace the question mark in the given letter series. A B F G K L ?
  A)
  P
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  B)
  M
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  C)
  R
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  D)
  O
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  E)
  None of these
  done clear
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• question_answer33)
  Recognise the pattern in the following series and select the correct option. BXJ, ETL, HPN, KLP, (......)
  A)
  NHR    
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  B)
  MHQ
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  C)
  MIP
  done clear
  D)
  NIR
  done clear
  E)
  None of these
  done clear
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• question_answer34)
  My face is towards South. By turning according to which sequence my face will remain in the same direction?
  A)
  Left, Right, Left, Right, Left, Left, Right, Right
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  B)
  Left, Left, Right, Right, Left, Right, Left, Left
  done clear
  C)
  Right, Right, Right, Left, Left, Left, Right, Right
  done clear
  D)
  Right, Left, Left, Right, Left, Left, Right, Left
  done clear
  E)
  None of these
  done clear
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• question_answer35)
  Find the exact time between 7 am and 8 am when the two hands of a watch meet.
  A)
  7 hrs 30.18 minute
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  B)
  7 hrs 35.18 minute
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  C)
  7 hrs 38.18 minute
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  D)
  7 hrs 25.18 minute
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  E)
  None of these
  done clear
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• question_answer36)
  If 'INSECT' is coded as 'NIESTC' in a certain language, then find the code for 'ANIMAL
  A)
  NAMIAL
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  B)
  ANMILA
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  C)
  NAIMLA
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  D)
  NAMILA
  done clear
  E)
  None of these
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• question_answer37)
  On the basis of two figures of dice, you have to tell what number will be on the opposite face of number 5?     
  A)
  1
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  B)
  3
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  C)
  4
  done clear
  D)
  5
  done clear
  E)
  None of these
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• question_answer38)
  Select one alternative which exactly matches with the mirror image of the word in the question given below. 2 4 7 5 9 3
  A)
  3 9 5 7 4 2
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  B)
  
  done clear
  C)
  
  done clear
  D)
   
  done clear
  E)
  None of these
  done clear
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• question_answer39)
  Choose the correct water image for the figure given below
  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
  E)
  None of these
  done clear
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• question_answer40)
  A, P, R, X, S and Z are sitting in a row. S and Z are in the centre, and A and P are at the ends. R is sitting on the left of A. Who is sitting on the right of P?
  A)
  A
  done clear
  B)
  S
  done clear
  C)
  X
  done clear
  D)
  Z
  done clear
  E)
  None of these
  done clear
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• question_answer41)

  Which of the following statements is/are correct?

  (i) In the digestive system, fat is completely digested in the small intestine.

  (ii) Water from the undigested food is absorbed mainly in the large intestine.

  (iii) Saliva breaks down starch into sugar.

  (iv) Bile secreted by gall bladder is temporarily stored in the liver.

  A)
  (i) and (ii) only
  done clear
  B)
  only (ii)
  done clear
  C)
  (ii), (iii) and (iv)  
  done clear
  D)
  (i), (ii) and (iii)
  done clear
  E)
  None of these
  done clear
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• question_answer42)

  Which of the following statements is/are correct?

  (i) When magnesium oxide reacts with water, magnesium hydroxide is formed.

  (ii) When sodium hydrogencarbonate reacts with acetic acid, sodium chloride, and water are formed.

  (iii) When calcium hydroxide reacts with carbon dioxide, calcium carbonate and water are formed.

  (iv) When magnesium reacts with oxygen, magnesium oxide is formed.

  Choose the correct answers from the options below.

  A)
  (i) and (iii)
  done clear
  B)
  (ii) and (iii)
  done clear
  C)
  (i), (iii) and (iv)
  done clear
  D)
  (i), (ii) and (iii)
  done clear
  E)
  None of these
  done clear
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• question_answer43)

  Read the following environmental conditions of tropical rainforests.

  (i) Hot and humid climate

  (ii) Unequal length of day and night

  (iii) Abundant rainfall

  (iv) Abundant light and moisture

  Identify the conditions from the above list that are responsible for the presence of large number of plants and animals in tropical rain forest.

  A)
  (i) and (ii)
  done clear
  B)
  (i) and (iii)
  done clear
  C)
  (i), (iii) and (iv)
  done clear
  D)
  (ii) and (iv)
  done clear
  E)
  None of these
  done clear
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• question_answer44)
  The organ system shown below consists of:
  A)
  Two kidneys, two ureters, one bladder and one urethra
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  B)
  Two kidneys, one ureter, one bladder and one urethra
  done clear
  C)
  Two kidneys, two ureters, one bladder and two urethra
  done clear
  D)
  Two kidneys, two ureters, two bladders and one urethra
  done clear
  E)
  None of these
  done clear
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• question_answer45)

  Fill in the blanks

  In the process of fertilization, a pollen grain falls on the ______ of the pistil, the pollen grain grows a _____downwards through the_____ towards the_____.

  A)
  Style, pollen tube, stigma, ovary
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  B)
  Stigma, pollen tube, style, ovary
  done clear
  C)
  Pollen tube, stigma, style, ovary
  done clear
  D)
  Pollen tube, style, stigma, ovary
  done clear
  E)
  None of these
  done clear
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• question_answer46)
  A car moves with a speed of 40 km/h for 15 minutes, then with a speed of 60 km/h for 15 minutes, then with a speed of 48 km/h for 10 minutes, then with the speed of 30 km/h for minutes. Find the average speed of the car.
  A)
  42 km/h
  done clear
  B)
  43 km/h
  done clear
  C)
  45 km/h
  done clear
  D)
  47 km/h
  done clear
  E)
  None of these
  done clear
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• question_answer47)
  Look at the given figure and match the following.

  (I)	It contains pollen grains	(A)	P
  (II)	It contains female gametes	(B)	Q
  (III)	It attracts insects	(C)	R

  A)
  (I) - (A), (II) - (B), (III) - (C)         
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  B)
  (I) - (B), (II) - (A), (III) - (C)
  done clear
  C)
  (I) - (A), (II) - (C), (III) - (B)
  done clear
  D)
  (I) - (C), (II) - (A), (III) - (B)
  done clear
  E)
  None of these
  done clear
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• question_answer48)
  Match the animals in Column I with their natural place of dwelling (habitat) in column II.

  Column I                                                                           Column II
  (A)	Earthworm	(I)	Sand and beaches
  (B)	Garden lizard	(II)	Burrows in Soil
  (C)	Crab	(III)	Deep, narrow holes in dry soils
  (D)	Rodents	(IV)	Surface of soil
  (E)	Scorpion	(V)	Surface of shaded moist soils
  (F)	Snails and slugs	(IV)	A horizon of moist soils

   
  A)
  A - VI, B - IV, C - I, D - II, E - III, F - V
  done clear
  B)
  A - I, B - IV, C - VI, D - V, E - III, F - II
  done clear
  C)
  A - VI, B - IV, C - III, D - I, E - II, F - V
  done clear
  D)
  A - V, B - IV, C - II, D - I, E - III, F - VI
  done clear
  E)
  None of these
  done clear
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• question_answer49)

  Given below is a jumbled sequence of the processes involved in a wastewater treatment plant. Arrange them in their correct sequence.

  (i) Sludge is scrapped out and skimmer removes the floating grease

  (ii) Water is made to settle in a large tank with a slope in the middle

  (iii) Large objects like plastic bags are removed by passing wastewater through bar screens

  (iv) Sand, grit and pebbles are made to settle by decreasing the speed of incoming wastewater

  (v) Wastewater enters a grit and sand removal tank

  A)
  ii, v, iv, iii, I
  done clear
  B)
  iii, v, iv, ii, i
  done clear
  C)
  v, iv, ii, i, iii
  done clear
  D)
  iv, ii, v, iii, i,
  done clear
  E)
  None of these
  done clear
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• question_answer50)
  The main organs of human respiratory system are:
  A)
  Nose, nasal passage, trachea, bronchi, lungs, diaphragm
  done clear
  B)
  Nose, nasal passage, nephron, bowman capsule, lungs, diaphragm
  done clear
  C)
  Nose, nasal passage, heart, liver, lungs, diaphragm
  done clear
  D)
  Nose, nasal passage, medulla, cerebral hemisphere, lungs, diaphragm
  done clear
  E)
  None of these
  done clear
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