7th Class Science Sample Paper

done Science Olympiad Model Test Paper-10 Total Questions - 50    [Download]

• question_answer1)
  Which among the following acts as producer in a food chain?
  A)
  Insects
  done clear
  B)
  Plants
  done clear
  C)
  Owls
  done clear
  D)
  Caterpillars
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer2)
  Which one of the following animals live in Polar Region?
  A)
  Lions
  done clear
  B)
  Cows
  done clear
  C)
  Gorillas
  done clear
  D)
  Frogs
  done clear
  E)
  None of these
  done clear
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• question_answer3)
  Which one of the following materials will expand maximum if same amount of heat energy is given to them?
  A)
  1 kg of iron having temperature of \[20{}^\circ C\]
  done clear
  B)
  1 kg of brass having temperature of \[20{}^\circ C\]
  done clear
  C)
  1 kg of water having temperature of \[20{}^\circ C\]
  done clear
  D)
  1 kg of oxygen gas having temperature of \[20{}^\circ C\]
  done clear
  E)
   None of these
  done clear
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• question_answer4)
  Colour of blood is red due to the presence of:
  A)
  Plasma
  done clear
  B)
  Haemoglobin
  done clear
  C)
  WBC
  done clear
  D)
  Platelets
  done clear
  E)
  None of these
  done clear
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• question_answer5)
  Look at the following graph and choose the correct option.
  A)
  OA represents uniform speed
  done clear
  B)
  OB represents uniform speed
  done clear
  C)
  OCDE represents uniform speed
  done clear
  D)
  OB represents zero speed
  done clear
  E)
  None of these
  done clear
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• question_answer6)
  Which one of the following factors contributes to the development of a cyclone?
  A)
  Wind speed
  done clear
  B)
  Temperature
  done clear
  C)
  Rotation of earth
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer7)
  Which one of the following instruments is used to find the direction of wind at a place?
  A)
  
  done clear
  B)
  
  done clear
  C)
   
  done clear
  D)
  
  done clear
  E)
  None of these
  done clear
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• question_answer8)
  Which one of the following is a physical change?
  A)
  Ripening of fruits
  done clear
  B)
  Growing of trees
  done clear
  C)
  Breaking of glass
  done clear
  D)
  Burning of paper
  done clear
  E)
  None of these
  done clear
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• question_answer9)
  Look at the following figure and choose the correct options to replace A and B. \[ICE\underset{Freezing}{\overset{A}{\longleftrightarrow}}WATER\underset{B}{\overset{Boiling}{\longleftrightarrow}}STEAM\]
  A)
  A - Condensation, B - Melting
  done clear
  B)
  A - Melting, B ? Condensation
  done clear
  C)
  A - Evaporation, B - Condensation
  done clear
  D)
  A - Evaporation, B - Melting
  done clear
  E)
  None of these
  done clear
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• question_answer10)
  Choose the correct statement for the given lens.
  A)
  It is a diverging lens because parallel rays of light diverge after passing through the lens
  done clear
  B)
  It is a converging lens because parallel rays of light converge at a point after passing through the lens
  done clear
  C)
  It is a simple lens because parallel rays of light neither diverge nor converge after passing through the lens.
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer11)
  The inner lining of ______ secretes mucus, hydrochloric acid and digestive juices.
  A)
  Oesophagus
  done clear
  B)
  Stomach
  done clear
  C)
  Small intestine
  done clear
  D)
  Large intestine
  done clear
  E)
  None of these
  done clear
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• question_answer12)
  The tissue which carries water and minerals from the roots to the leaves of a plant is called:
  A)
  xylem
  done clear
  B)
  phloem
  done clear
  C)
  stomata
  done clear
  D)
  guard cells
  done clear
  E)
  None of these
  done clear
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• question_answer13)
  In the given figure, reproduction in yeast has been shown. This method of asexual reproduction is known as:
  A)
  Fragmentation
  done clear
  B)
  Spore formation
  done clear
  C)
  Budding
  done clear
  D)
  Regeneration
  done clear
  E)
  None of these
  done clear
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• question_answer14)
  What is overloading?
  A)
  Touching of live wire with the neutral wire
  done clear
  B)
  Touching of live wire with the earth wire
  done clear
  C)
  Touching of neutral wire with the earth wire
  done clear
  D)
  Drawing extremely large amount of current from the single house hold circuit
  done clear
  E)
  None of these
  done clear
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• question_answer15)
  Which one of the following is a correct order of food chain?
  A)
  Plants\[\to \]grasshopper\[\to \]frog\[\to \]snake\[\to \]eagle
  done clear
  B)
  Plants\[\to \]grasshopper\[\to \]snake\[\to \]frog\[\to \]eagle
  done clear
  C)
  Plants\[\to \]eagle\[\to \]snake\[\to \]frog\[\to \]grasshoppers
  done clear
  D)
  Plants\[\to \]grasshopper\[\to \]frog\[\to \]eagle\[\to \]snake
  done clear
  E)
  None of these
  done clear
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• question_answer16)
  How many new young ones are produced in binary fission?
  A)
  One
  done clear
  B)
  Two
  done clear
  C)
  Three
  done clear
  D)
  Four
  done clear
  E)
  None of these
  done clear
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• question_answer17)
  How many chromosomes does a human female sex cell have?
  A)
  23
  done clear
  B)
  46
  done clear
  C)
  44
  done clear
  D)
  52
  done clear
  E)
  None of these
  done clear
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• question_answer18)
  Which one of the following causes scarcity of water?
  A)
  Overpopulation
  done clear
  B)
  Deforestation
  done clear
  C)
  Scanty rainfall
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer19)
  Why aluminium metal is used for making utensils for food preparation?
  A)
  Because it is a good insulator of heat
  done clear
  B)
  Because it is a good conductor of heat
  done clear
  C)
  Because it is good conductor of electricity
  done clear
  D)
  Because it is poor conductor of electricity
  done clear
  E)
  None of these
  done clear
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• question_answer20)
  Choose the salt from the following equation. \[NaOH+HCl\to NaCl+{{H}_{2}}O\]
  A)
  \[NaOH\]
  done clear
  B)
  \[HCl\]
  done clear
  C)
  \[NaCl\]
  done clear
  D)
  \[{{H}_{2}}O\]
  done clear
  E)
   None of these
  done clear
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• question_answer21)
  Transfer of heat between two substances occurs when:
  A)
  both the substance have equal temperatures
  done clear
  B)
  the substances have different temperatures
  done clear
  C)
  difference of the temperature is more than \[25{}^\circ C\]
  done clear
  D)
  difference of the temperature is less than \[25{}^\circ C\]
  done clear
  E)
  None of these
  done clear
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• question_answer22)
  The substances, which are involved in a chemical reaction for the formation of new substances, are called:
  A)
  Products
  done clear
  B)
  Reactants
  done clear
  C)
  Valance electrons
  done clear
  D)
  Covalent bond
  done clear
  E)
  None of these
  done clear
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• question_answer23)
  What products are formed when methane reacts with oxygen?
  A)
  Polyethylene and water
  done clear
  B)
  Polyester and water
  done clear
  C)
  Carbon dioxide and water
  done clear
  D)
  Water and sulphur dioxide
  done clear
  E)
  None of these
  done clear
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• question_answer24)
  Maximum rainfall is recorded in which one of the following climate?
  A)
  Tropical
  done clear
  B)
  Temperate
  done clear
  C)
  Polar climate
  done clear
  D)
  Desert climate
  done clear
  E)
  None of these
  done clear
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• question_answer25)
  Which one of the following is the widest part of our alimentary canal?                       
  A)
  Oesophagus
  done clear
  B)
  Stomach
  done clear
  C)
   Small intestine
  done clear
  D)
  Large intestine         
  done clear
  E)
  None of these
  done clear
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• question_answer26)
  Which requirement of our body is fulfilled by the process of respiration?
  A)
  Water requirement          
  done clear
  B)
  Food requirement
  done clear
  C)
  Energy requirement
  done clear
  D)
  Defence requirement
  done clear
  E)
  None of these
  done clear
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• question_answer27)
  Which one of the following is an end product of the anaerobic respiration that takes place in our muscle cells during heavy physical exercises?
  A)
  Lactic acid
  done clear
  B)
  Ethanol                
  done clear
  C)
  Carbon dioxide
  done clear
  D)
  All of these             
  done clear
  E)
  None of these
  done clear
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• question_answer28)
  The motion of a child in a merry-go-round is an example of _______
  A)
  Oscillatory motion
  done clear
  B)
  Random motion
  done clear
  C)
  Vibratory motion
  done clear
  D)
  Circular motion
  done clear
  E)
  None of these
  done clear
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• question_answer29)
  Which one of the following is true for the uniform speed?
  A)
  If speed of a moving body varies at different interval of time, the body has uniform speed
  done clear
  B)
  If speed of a moving is constant at different intervals of time, the body has uniform speed
  done clear
  C)
  If a moving body suddenly comes to rest, the body has uniform speed
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer30)
  Which one of the following diseases is caused by microbes present in waste water?
  A)
  Dysentery
  done clear
  B)
  Cholera
  done clear
  C)
  Typhoid
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer31)

  What will come in place of the question mark?

  Wellington : New Zealand :: ? : Philippines

  A)
  Hungry
  done clear
  B)
  India
  done clear
  C)
  England
  done clear
  D)
  Manila
  done clear
  E)
  None of these
  done clear
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• question_answer32)
  In a 4 members family, R is the wife of P while L is the son of P. D is the grandson of P. How is D related to L?
  A)
  Grand-father
  done clear
  B)
  Son
  done clear
  C)
  Brother
  done clear
  D)
  Uncle
  done clear
  E)
  None of these
  done clear
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• question_answer33)
  Complete the following series. WD, TG, QJ,?
  A)
  ST
  done clear
  B)
  RS
  done clear
  C)
  UT
  done clear
  D)
  NM
  done clear
  E)
  None of these
  done clear
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• question_answer34)
  Surender went 8 km towards South and then turned to his right and walked 3 km. From this point, he again turned to his right and walked 5 km. In the end he turned to his right again and walked 3 km and then turned to his left and stopped. In which direction is Surender from the starting point?
  A)
  East
  done clear
  B)
  North
  done clear
  C)
  West    
  done clear
  D)
  South
  done clear
  E)
  None of these
  done clear
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• question_answer35)
  How many times do the hands (minute hand and hour hand) of a clock coincide between 11 O'clock and 1 O'clock?
  A)
  0
  done clear
  B)
  1
  done clear
  C)
  2
  done clear
  D)
  3
  done clear
  E)
  None of these
  done clear
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• question_answer36)
  Two positions of the same dice are given below. Observe the figures carefully and find which number will be at the bottom if 3 is at the top?
  A)
  1
  done clear
  B)
  6
  done clear
  C)
  2
  done clear
  D)
  5
  done clear
  E)
  None of these
  done clear
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• question_answer37)
  Which one of the following is the water image of 'PERMANENT'?
  A)
  
  done clear
  B)
   
  done clear
  C)
  
  done clear
  D)
  
  done clear
  E)
  None of these
  done clear
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• question_answer38)
  If ?+? denotes ?\[\div \]?, ?\[\div \]? denotes ?\[-\]?, and ?\[\times \]? denotes ?+?, then \[12+2\times 9\div 4\]is ­­­______.
  A)
  4
  done clear
  B)
  9
  done clear
  C)
  11
  done clear
  D)
  18
  done clear
  E)
  None of these
  done clear
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• question_answer39)
  Insert the missing number.
  A)
  4
  done clear
  B)
  5
  done clear
  C)
  6
  done clear
  D)
  7
  done clear
  E)
  None of these
  done clear
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• question_answer40)
  Insert the missing number.
  A)
  3
  done clear
  B)
  4
  done clear
  C)
  5
  done clear
  D)
  6
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer41)
  A plane mirror forms a virtual image. The distance between Maria and her image produced by a plane mirror is 10 m. How much distance should she move in order to get the distance of 5 m between herself and her image?
  A)
  2.5 m away form the mirror
  done clear
  B)
  2.5 m towards the mirror
  done clear
  C)
  5 m away form the mirror
  done clear
  D)
  5 m towards the mirror
  done clear
  E)
  None of these
  done clear
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• question_answer42)
  Which one of the following is correct about the flow of food in the digestive tract?
  A)
  Buccal cavity\[\to \]Oesophagus\[\to \]Stomach\[\to \]Small intestine\[\to \]Large intestine\[\to \]Anus
  done clear
  B)
  Oesophagus\[\to \]Stomach\[\to \]Small intestine\[\to \]Large instestine\[\to \]Anus\[\to \]Buccal cavity
  done clear
  C)
  Oesophagus\[\to \]Anus\[\to \]Small intestine\[\to \]Large intestine\[\to \]Stomach\[\to \]Buccal cavity
  done clear
  D)
  Buccal cavity\[\to \]Oesophagus\[\to \]Stomach\[\to \]Large instestine\[\to \]Small intestine\[\to \]Anus
  done clear
  E)
  None of these
  done clear
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• question_answer43)

  Which of the following statements is true for sexual reproduction in plants?

  (i) Plants are obtained from seeds.

  (ii) Two plants are always essential.

  (iii) Fertilisation can occur only after pollination.

  (iv) Only insects are agents of pollination.

  A)
  (i) and (iii)
  done clear
  B)
  (i) only
  done clear
  C)
  (ii) and (iii)
  done clear
  D)
  (i) and (iv)
  done clear
  E)
  None of these
  done clear
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• question_answer44)
  Fill in the blanks with correct combination of words. When we \[\underline{\,\,\,\,L\,\,\,\,}\]the muscles between the ribs relax causing the rib cage to move \[\underline{\,\,\,\,M\,\,\,\,}\]and \[\underline{\,\,\,\,N\,\,\,\,}\] and the diaphragm relaxes and moves\[\underline{\,\,\,\,O\,\,\,\,}\].
  A)
  L-breathe in, M-downward, N-inward, O-upward
  done clear
  B)
  L-breathe out, M-upward, N-inward, O-downward
  done clear
  C)
  L-breathe in, M-downward, N-outward, O-upward
  done clear
  D)
  L-breathe out, M-downward, N-inward, O-upward
  done clear
  E)
  None of these
  done clear
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• question_answer45)
  The transfer of\[\underline{\,\,\,\,P\,\,\,\,}\] from the anther of a\[\underline{\,\,\,\,Q\,\,\,\,}\]to the \[\underline{\,\,\,\,R\,\,\,\,}\]of a  \[\underline{\,\,\,\,S\,\,\,\,}\] is called pollination.
  A)
  P - pollen grains, Q - stamen, R - stigma, S ? pistil
  done clear
  B)
  P - ovules, Q - stamen, R - stigma, S - pistil
  done clear
  C)
  P - pollen grains, Q - pistil, R - stigma, S -stamen
  done clear
  D)
  P - ovules, Q - pistil, R - stigma, S - stamen
  done clear
  E)
  None of these
  done clear
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• question_answer46)

  Which of the following statements is correct?

  i. Parasitic nutrition is a heterotrophic nutrition.

  ii. Saprophytic plants cannot grow without the host plant.

  iii. Insectivorous plants do not perform photosynthesis.

  iv. Insectivorous plants obtain nutrients also from insects.

  A)
  i and ii
  done clear
  B)
  ii and iii
  done clear
  C)
  j and iii
  done clear
  D)
  i and iv
  done clear
  E)
  None of these
  done clear
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• question_answer47)
  An element X reacts with oxygen to form Y which turns red litmus to blue, then:
  A)
  X is a metal and Y is acidic oxide.
  done clear
  B)
  X is a non-metal and Y is basic oxide.
  done clear
  C)
  X is a metal and Y is basic oxide.
  done clear
  D)
  X is a non-metal and Y is acidic oxide.
  done clear
  E)
  None of these
  done clear
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• question_answer48)
  Match the following:

  Column A		Column B
  I.	Oxalic acid	A.	Curd
  II.	Acetic acid	B.	Tamarind
  III.	Tartaric acid	C.	Spinach
  IV.	Lactic acid	D.	Vinegar

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

  Read the following statements with reference to the villi of small intestine.

  i. They have very thin walls.

  ii. They have a network of thin and small blood vessels close to the surface.

  iii. They have small pores through which food can easily pass.

  iv. They are finger-like projections.

  Identify those statements which enable the villi to absorb digested food.

  A)
  i, ii and iv
  done clear
  B)
  ii, iii and iv
  done clear
  C)
  iii and iv
  done clear
  D)
  i and iv
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer50)

  Read the following environmental conditions of tropical rain forests.

  i. Hot and humid climate.

  ii. Unequal lengths of day and night.

  iii. Abundant rain fall.

  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 forests.

  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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