7th Class Science Sample Paper

done Science Olympiad Model Test Paper-19 Total Questions - 50    [Download]

• question_answer1)
  What do you mean by cud?
  A)
  Completely digested food
  done clear
  B)
  Liquid undigested food
  done clear
  C)
  Partially digested food
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer2)
  The wire used in a fuse has:
  A)
  High melting point
  done clear
  B)
  Low melting point
  done clear
  C)
  Average melting point
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer3)
  Bread mould is a/an:
  A)
  Autotroph
  done clear
  B)
  Saprophyte
  done clear
  C)
  Partial parasite
  done clear
  D)
  Parasite
  done clear
  E)
  None of these
  done clear
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• question_answer4)
  Group the following in terms of artificial and natural fibres. Flax, Wool, Acetate, Nylon, Rayon
  A)
  Artificial fibres-Wool, Rayon. Natural fibres-Flax, Acetate, Nylon
  done clear
  B)
  Artificial fibres-Nylon, Acetate, Rayon. Natural fibres-Flax, Wool
  done clear
  C)
  Artificial fibres-Flax, Wool. Natural fibres-Acetate, Nylon, Rayon
  done clear
  D)
  Artificial fibres-Nylon, Wool. Natural fibres- Flax, Acetate, Rayon
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer5)
  A way of transferring heat from a hot body to a cold body which do not require any material medium is:
  A)
  Convection
  done clear
  B)
  Conduction
  done clear
  C)
  Radiation
  done clear
  D)
  Reflection
  done clear
  E)
  None of these
  done clear
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• question_answer6)
  Which one of the following is not a natural calamity?
  A)
  Landslides
  done clear
  B)
  Forestfire
  done clear
  C)
  Flood
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer7)
  The indicator, phenolphthalein turns into which one of the following colour in the acidic solution?
  A)
  Red
  done clear
  B)
  Black
  done clear
  C)
  White
  done clear
  D)
  Colorless
  done clear
  E)
  None of these
  done clear
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• question_answer8)
  Zygote is formed in which part of the flower?
  A)
  Petals
  done clear
  B)
  Sepals
  done clear
  C)
  Stamens
  done clear
  D)
  Ovary
  done clear
  E)
  None of these
  done clear
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• question_answer9)
  Which one of the following types of reaction is involved in the formation of iron sulfide from iron and sulphur?
  A)
  Decomposition reaction
  done clear
  B)
  Combination reaction
  done clear
  C)
  Single displacement reaction
  done clear
  D)
  Double displacement reaction
  done clear
  E)
  None of these
  done clear
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• question_answer10)
  "When a body is moving with a constant velocity, the velocity-time graph of the body is a straight line parallel to time axis". The given statement is........
  A)
  True     
  done clear
  B)
  False
  done clear
  C)
  Partly true
  done clear
  D)
  Partly false
  done clear
  E)
  None of these
  done clear
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• question_answer11)
  Average weather pattern at a place for many years describes:
  A)
  Precipitation
  done clear
  B)
  Climate
  done clear
  C)
  Humidity
  done clear
  D)
  Rainfall
  done clear
  E)
  None of these
  done clear
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• question_answer12)
  Exchange of gases between the air and blood takes place across the walls of ______.
  A)
  Bronchiole
  done clear
  B)
  Diaphragm
  done clear
  C)
  Alveoli
  done clear
  D)
  Trachea
  done clear
  E)
  None of these
  done clear
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• question_answer13)
  Raghu gets muscle cramp while doing heavy physical excercises, the reason can be:
  A)
  Accumulation of alcohol in the muscles.
  done clear
  B)
  Accumulation of lactic acid in the muscles.
  done clear
  C)
  Accumulation of citric acid in the muscles.
  done clear
  D)
  Accumulation of nitric acid in the muscles.
  done clear
  E)
  None of these
  done clear
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• question_answer14)
  Breathing cannot be considered as a whole process of respiration. Because:
  A)
  Oxidation of food does not come under it
  done clear
  B)
  Breathing does not involve in transporting waste material out of body
  done clear
  C)
  Breathing does not involve lungs
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer15)
  Oxygenated blood passes from left atrium to left ventricle through:
  A)
  Septum
  done clear
  B)
  Valves
  done clear
  C)
  Pulmonary vein
  done clear
  D)
  Pulmonary artery
  done clear
  E)
  None of these
  done clear
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• question_answer16)
  Which process is responsible for the absorption of water by the roots from the soil?
  A)
  Respiration
  done clear
  B)
  Photosynthesis
  done clear
  C)
  Osmosis
  done clear
  D)
  Transpiration
  done clear
  E)
  None of these
  done clear
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• question_answer17)
  Seeds which have spines or hooks specially designed to get dispersed by:
  A)
  Explosion
  done clear
  B)
  Wind
  done clear
  C)
  Animals
  done clear
  D)
  Water
  done clear
  E)
  None of these
  done clear
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• question_answer18)
  Which among the following is a basic salt?
  A)
  \[N{{a}_{2}}S{{O}_{4}}\]
  done clear
  B)
  \[N{{H}_{4}}Cl\]
  done clear
  C)
  \[N{{a}_{2}}C{{O}_{3}}\]
  done clear
  D)
  \[NaCl\]
  done clear
  E)
  None of these
  done clear
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• question_answer19)
  The organism given below reproduces by which of the following methods of reproduction?
  A)
  Budding
  done clear
  B)
  Fragmentation
  done clear
  C)
  Spore formation
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer20)
  Fill in the following blank with suitable wore Tropical rainforests are found in .......Ghats ......... in India.
  A)
  Eastern and Rajasthan    
  done clear
  B)
  Western and Assam
  done clear
  C)
  Eastern and Himachal Pradesh
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer21)
  A man driving a car covered a distance of 85 meters in 35 seconds. What is the speed of the car?
  A)
  2.2 km/h
  done clear
  B)
  2.1 km/h
  done clear
  C)
  2.4 km/h
  done clear
  D)
  0.4 km/h
  done clear
  E)
  None of these
  done clear
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• question_answer22)
  Salivary glands are located in our:
  A)
  Mouth
  done clear
  B)
  Stomach
  done clear
  C)
  Oesophagus
  done clear
  D)
  Small intestine
  done clear
  E)
  None of these
  done clear
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• question_answer23)
  The electric fuse works using which o following effects of electricity?
  A)
  Chemical effect of current
  done clear
  B)
  Magnetic effect of current
  done clear
  C)
  Heating effect of current
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer24)
  \[405{}^\circ \]Celsius is equal to ____ Fahrenheit.
  A)
  \[273{}^\circ \]
  done clear
  B)
  \[761{}^\circ \]
  done clear
  C)
  \[760{}^\circ \]
  done clear
  D)
  \[972{}^\circ \]
  done clear
  E)
  None of these
  done clear
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• question_answer25)
  Which of the following natural phenomena not occur due to air pressure difference?
  A)
  Cyclone
  done clear
  B)
  Typhoon
  done clear
  C)
  Earthquake
  done clear
  D)
  Hurricane
  done clear
  E)
  None of these
  done clear
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• question_answer26)
  What has been shown in the figure below?
  A)
  Reflection of light
  done clear
  B)
  Refraction of light
  done clear
  C)
  Dispersion of light
  done clear
  D)
  Both [a] and [c]
  done clear
  E)
  None of these
  done clear
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• question_answer27)
  Which of the following does not show shortage?
  A)
  Taps running dry
  done clear
  B)
  Long queues for getting water
  done clear
  C)
  Marches and protests for demands of water
  done clear
  D)
  A family gets three buckets of water per person per day
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer28)
  Look at the following figure. Letter X should be replaced by which animal to make the food web correct?
  A)
  Frog     
  done clear
  B)
  Turtle
  done clear
  C)
  Horse
  done clear
  D)
  Lion
  done clear
  E)
   None of these
  done clear
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• question_answer29)
  Which one of the following statements is not correct about forest?
  A)
  A forest is a self-sustaining ecosystem needing only the input of sunlight for its functioning
  done clear
  B)
   Decomposers help in maintaining the supply of nutrients to the growing plant in the forest
  done clear
  C)
  A forest is a large area of land covered mainly with trees and other plants
  done clear
  D)
  In a forest, most of the plants in the herb layer have short life-span
  done clear
  E)
  None of these
  done clear
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• question_answer30)
  In waste water treatment plant useful products obtained are:
  A)
  Biogas
  done clear
  B)
  Sludge
  done clear
  C)
  Aerobic bacteria
  done clear
  D)
  Both [a] and [b]
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer31)
  What comes in place of the question mark? Snake : Reptile :: Bed bug : ?
  A)
  Insect
  done clear
  B)
  Animal
  done clear
  C)
  Human
  done clear
  D)
  Bird
  done clear
  E)
  None of these
  done clear
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• question_answer32)
  B is son of C's maternal grandfather's only daughter. How is C's father related to B?
  A)
  Grand Father
  done clear
  B)
  Uncle
  done clear
  C)
  Father
  done clear
  D)
  Brother
  done clear
  E)
  None of these
  done clear
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• question_answer33)
  A dog runs 20 metre towards East then turns right, runs 10 metre and turns right again, runs 9 metre and turns left, runs 5 metre and turns left again, runs 12 metre and finally turns left and runs 6 metre. Now in which direction the dog is facing?
  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_answer34)
  If 'LMN' is coded as 'OPQ' in a certain language, then find the code for 'PQR'.
  A)
  STU
  done clear
  B)
  UTS
  done clear
  C)
  TUS
  done clear
  D)
  UST
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer35)
  Find the missing number.
  A)
  45
  done clear
  B)
  35
  done clear
  C)
  25
  done clear
  D)
  15
  done clear
  E)
  None of these
  done clear
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• question_answer36)
  Find the missing number.
  A)
  63
  done clear
  B)
  60
  done clear
  C)
  50
  done clear
  D)
  45
  done clear
  E)
  None of these
  done clear
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• question_answer37)
  Find the missing term in the series given below. 57, 87, 50, 81, 45, 77, 42, ?
  A)
  71
  done clear
  B)
  75
  done clear
  C)
  53
  done clear
  D)
  69
  done clear
  E)
  None of these
  done clear
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• question_answer38)
  Two different faces of a dice has been shown below. Which number is opposite to number 5?
  A)
  6
  done clear
  B)
  5
  done clear
  C)
  1
  done clear
  D)
  3
  done clear
  E)
  None of these
  done clear
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• question_answer39)
  B is husband of C, A is sister of B and D is sister of C. How is D related to B?
  A)
  Son
  done clear
  B)
  Uncle
  done clear
  C)
  Father-in-law
  done clear
  D)
  Sister-in-law
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer40)
  If in a clock the numbers 1 to 12 are replaced with alphabet starting from A, then which of the following options shall indicate the time as 10' o clock?
  A)
  J - L
  done clear
  B)
  A - L
  done clear
  C)
  K - L    
  done clear
  D)
  D - E
  done clear
  E)
  None of these
  done clear
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• question_answer41)
  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\[\to \]C, II\[\to \]D, III\[\to \]A, IV\[\to \]B
  done clear
  B)
  I\[\to \]D, II\[\to \]A, III\[\to \]B, IV\[\to \]C
  done clear
  C)
  I\[\to \]C, II\[\to \]D, III\[\to \]B, IV\[\to \]A
  done clear
  D)
  I\[\to \]D, II\[\to \]C, III\[\to \]B, IV\[\to \]A
  done clear
  E)
  None of these
  done clear
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• question_answer42)
  Starting from the top to bottom which one of the following sequence of layers of forest is correct?
  A)
  Understorey, Shrub layer, Forest floor, Herb layer, Canopy
  done clear
  B)
  Canopy, Understorey, Shrub layer, Herb layer, Forest floor
  done clear
  C)
  Canopy, Understorey, Herb layer, Shrub layer, Forest floor
  done clear
  D)
  Shrub layer, Herb layer, Forest floor, Understorey, Canopy
  done clear
  E)
  None of these
  done clear
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• question_answer43)

  Which of the following statements is correct?

  (i) When we breathe in the ribcage moves upward and outward.

  (ii) When we breathe in the ribcage moves downward and inwards.

  (iii) When we breathe in diaphragm moves downward.

  (iv) When we breathe in diaphragm moves upward.

  A)
  (i) and (iv)
  done clear
  B)
  (ii) and (iii)
  done clear
  C)
  (i) and (iii)
  done clear
  D)
  All the above
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer44)

  Fill in the blanks with the correct combination of words.

  In our heart, the top side of \[\underline{\,\,\,\,P\,\,\,\,}\] is connected to \[\underline{\,\,\,\,Q\,\,\,\,}\]which brings oxygenated blood into it from the lungs and the top side of \[\underline{\,\,\,\,R\,\,\,\,}\]is connected to \[\underline{\,\,\,\,S\,\,\,\,}\]which brings deoxygenated blood in to it from all the body organs except lungs.

  A)
  P-Right atrium, Q-pulmonary vein, R-atrium, S-vena cava
  done clear
  B)
  P-left atrium, Q-pulmonary vein, R-right atrium, S-vena cava
  done clear
  C)
  P-vena cava, Q-pulmonary vein, R-right atrium, S-left atrium
  done clear
  D)
  P-left atrium, Q-vena cava, R-right atrium, S-pulmonary vein
  done clear
  E)
   None of these
  done clear
  View Answer play_arrow

• question_answer45)
  Match the following:

  Column A		Column B
  (I)	Strong base	(A)	Nitric acid
  (II)	Strong acid	(B)	Formic acid
  (III)	Weak base hydroxide	(C)	Potassium
  (IV)	Weak acid hydroxide	(D)	Calcium

  A)
  I\[\to \]C, II\[\to \]D, III\[\to \]A, IV\[\to \]B
  done clear
  B)
  I\[\to \]B, II\[\to \]C, III\[\to \]A, IV\[\to \]D
  done clear
  C)
  I\[\to \]C, II\[\to \]A, III\[\to \]D, IV\[\to \]B
  done clear
  D)
  I\[\to \]D, II\[\to \]A, III\[\to \]C, IV\[\to \]B
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer46)
  Look at the given figure then match the columns below it.

  I.	The largest gland in our body.	A.	M
  II.	The organ where chemical digestion of protein starts.	B.	N
  III.	The organ that releases digestive juice into the small intestine.	C.	L
  IV.	The organ where bile juice gets stored.	D.	O

  A)
  I\[\to \]C, II\[\to \]D, III\[\to \]A, IV\[\to \]B
  done clear
  B)
  I\[\to \]B, II\[\to \]C, III\[\to \]A, IV\[\to \]D
  done clear
  C)
  I\[\to \]C, II\[\to \]A, III\[\to \]B, IV\[\to \]D
  done clear
  D)
  I\[\to \]D, II\[\to \]A, III\[\to \]C, IV\[\to \]B
  done clear
  E)
  None of these
  done clear
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• question_answer47)

  Arrange the following statements in the correct order in which they occur during the formation and removal of urine in human beings.

  i. Ureters carry urine to the urinary bladder.

  ii. Wastes dissolved in water is filtered out as urine in the kidneys.

  iii. Urine stored in urinary bladder is passed out through the urinary opening at the end of the urethra.

  iv. Blood containing useful and harmful substances reaches the kidneys for filtration.

  v. Useful substances are absorbed back into the blood.

  A)
  iv\[\to \]v\[\to \]ii\[\to \]i\[\to \]iii
  done clear
  B)
  ii\[\to \]v\[\to \]iii\[\to \]i\[\to \]iv
  done clear
  C)
  iv\[\to \]i\[\to \]ii\[\to \]v\[\to \]iii
  done clear
  D)
  iv\[\to \]v\[\to \]iii\[\to \]ii\[\to \]i
  done clear
  E)
  None of these
  done clear
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• question_answer48)
  Some words are missing in the table given below which shows the difference between aerobic and anaerobic respiration. Choose the correct option to complete the table.

  Anaerobic           Aerobic
  Reactants	\[\underline{\,\,\,\,p\,\,\,\,}\]	Glucose and \[\underline{\,\,\,\,Q\,\,\,\,}\]
  Combustion	Incomplete	Complete
  Energy Yield	Low (2ATP)	High (36-38 ATP)
  Products	Animals: \[\underline{\,\,\,\,R\,\,\,\,}\] Yeast: Ethanol +\[\underline{\,\,\,\,S\,\,\,\,}\]	\[C{{O}_{2}}\,and\,{{H}_{2}}O\]
  Location	\[\underline{\,\,\,\,T\,\,\,\,}\]	Cytoplasm and \[\underline{\,\,\,\,U\,\,\,\,}\]

  A)
  P-Glucose, \[Q-{{O}_{2}}\], R-Ethanol, \[S-{{O}_{2}}\], T- Cytoplasm, U-mitochondria
  done clear
  B)
  P-Glucose, \[Q-{{O}_{2}}\], R-Lactic acid, \[S-C{{O}_{2}}\], T- Mitochondria, U-Nucleus
  done clear
  C)
  P-Glucose, \[Q-C{{O}_{2}}\], R-Lactic acid, \[S-{{O}_{2}}\], T- Cytoplasm, U-mitochondria
  done clear
  D)
  P-Glucose, \[Q-{{O}_{2}}\], R-Lactic acid, \[S-C{{O}_{2}}\], T- Cytoplasm, U-mitochondria
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer49)
  The names of the vitamins are given below. Which one of the following options is correct about the categorization of vitamins as water and fat soluble elements? Vitamin A, Vitamin B, Vitamin C, Vitamin D, Vitamin E, Vitamin K
  A)
  Water soluble vitamins - Vitamin B, Vitamin C Fat soluble vitamins - Vitamin A, Vitamin D, Vitamin E, Vitamin K.
  done clear
  B)
  Water soluble vitamins - Vitamin A, Vitamin D, Vitamin E, Vitamin K Fat soluble vitamins - Vitamins B, Vitamins C
  done clear
  C)
  Water soluble vitamins - Vitamin D, Vitamin E, Vitamin C Fat soluble vitamins - Vitamin A, Vitamin B, Vitamin K
  done clear
  D)
  Fat soluble vitamins - Vitamin A, Vitamin B, Vitamin C Water soluble vitamins - Vitamin D, Vitamin E, Vitamin K
  done clear
  E)
  None of these
  done clear
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• question_answer50)
  Fill in the blanks with correct combination of words. When\[\underline{\,\,\,\,L\,\,\,\,}\]and \[\underline{\,\,\,\,M\,\,\,\,}\]are mixed together, a chemical reaction takes place which causes formation of three new substances; \[\underline{\,\,\,\,N\,\,\,\,}\], \[\underline{\,\,\,\,O\,\,\,\,}\] and \[\underline{\,\,\,\,P\,\,\,\,}\].
  A)
  L - lime water, M - Baking soda, N - Sodium acetate, O - Carbon dioxide, P - water
  done clear
  B)
  L - Lime water, M - Vinegar, N - Calcium acetate, O - Carbon dioxide, P - water
  done clear
  C)
  L - Baking   soda,   M - Vinegar,   N - Sodium hydroxide, O - Carbon dioxide, P - water
  done clear
  D)
  L - Baking soda, M - Vinegar, N - Sodium acetate, O - Carbon dioxide, P - water
  done clear
  E)
  None of these
  done clear
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