7th Class Science Sample Paper

done Science Olympiad Model Test Paper-20 Total Questions - 50    [Download]

• question_answer1)
  Which among the following plants depends on other plants for their food?
  A)
  Venus flytrap
  done clear
  B)
  Pitcher plant
  done clear
  C)
  Cuscuta plant
  done clear
  D)
  Bamboo plant
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer2)
  Tropical rainforest is found in:
  A)
  Brazil
  done clear
  B)
  India
  done clear
  C)
  Indonesia
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer3)
  Which one of the following is a chemical change?
  A)
  The reaction between calcium hydroxide and carbon dioxide
  done clear
  B)
  The reaction between copper sulphate solution and iron
  done clear
  C)
  The reaction between magnesium oxide and water
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer4)
  Lohi and Nali are breeds of:
  A)
  Goat    
  done clear
  B)
  Sheep
  done clear
  C)
  Camel
  done clear
  D)
  Silkworm
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer5)
  \[122{}^\circ \] Fahrenheit is equal to:
  A)
  \[50{}^\circ C\]
  done clear
  B)
  \[39{}^\circ C\]
  done clear
  C)
  \[42{}^\circ C\]
  done clear
  D)
  \[60{}^\circ C\]
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer6)
  Which one of the following circuits has a battery, a bulb, a closed switch and an ammeter?
  A)
   
  done clear
  B)
  
  done clear
  C)
   
  done clear
  D)
  
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer7)
  Which part of a stamen contains pollen grains?
  A)
  Anther
  done clear
  B)
  Stamen
  done clear
  C)
  Stigma
  done clear
  D)
  Filament
  done clear
  E)
   None of these
  done clear
  View Answer play_arrow

• question_answer8)
  If a drop of solution X turns China rose indicator from light pink to green, nature of solution X is:
  A)
  Basic
  done clear
  B)
  Acidic
  done clear
  C)
  Neutral
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer9)
  Which one of the following glands is not associated with human digestive system?
  A)
  Salivary gland
  done clear
  B)
  Pancreas
  done clear
  C)
  Liver    
  done clear
  D)
  Adrenal gland
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer10)
  A soil sample weighing 150 g is dried completely by keeping it in sunshine. The mass of the dried soil is 135 g. Calculate the percentage of water in the given sample of soil.
  A)
  8%
  done clear
  B)
  9%
  done clear
  C)
  10%
  done clear
  D)
  11%
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer11)
  Which of the following elements is not present in proteins?
  A)
  Carbon
  done clear
  B)
  Hydrogen
  done clear
  C)
  Oxygen
  done clear
  D)
  Nitrogen
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer12)
  Which one of the following is an anaerobe?
  A)
  Fish
  done clear
  B)
  Mosquito
  done clear
  C)
  Yeast
  done clear
  D)
  Grasshopper
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer13)
  If length of a pendulum increases, its time period:
  A)
  will decrease
  done clear
  B)
  will increase
  done clear
  C)
  will remain same
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer14)
  Which one of the following plants can be grown by the cutting methods of vegetative propagation?
  A)
  Rose plant
  done clear
  B)
  Sugarcane plant
  done clear
  C)
  Bougainvillea    
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer15)
  The vascular system of plants consists of:
  A)
  Veins and nerves
  done clear
  B)
  Xylem and phloem
  done clear
  C)
  Leaf blades and veins
  done clear
  D)
  Apical tissues and xylem
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer16)
  Which one of the following is not carried by blood in our body?
  A)
  Carbon dioxide
  done clear
  B)
  Urea
  done clear
  C)
  Digested food
  done clear
  D)
  Oxygen
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer17)
  Which one of the following statements is incorrect about asexual reproduction?
  A)
  In asexual reproduction only one parent is needed.
  done clear
  B)
  In plants, asexual reproduction occurs by the formation of seeds.
  done clear
  C)
  Offspring produced by asexual reproduction is genetically identical to parent.
  done clear
  D)
  Budding and spore formation are methods of asexual reproduction.
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer18)
  Which one of the following statements is correct?
  A)
  The process of respiration does not occur in roots of plants.
  done clear
  B)
  In roots of plants mostly anaerobic respiration takes place.
  done clear
  C)
  Roots of plants also need air for respiration to take place.
  done clear
  D)
  The process of respiration occurs in roots of plants only in night.
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer19)
  In which of the following cases salt will be formed?
  A)
  When hydrochloric acid reacts with sulphuric acid.
  done clear
  B)
  When sodium hydroxide reacts with hydrochloric acid.
  done clear
  C)
  When carbonic acid reacts with hydrochloric acid.
  done clear
  D)
  When sodium hydroxide reacts with potassium hydroxide.
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer20)
  A car moves with a speed of 81 km/h for 20 minutes and then with a speed of 72 km/h for the next 15 minutes. The total distance covered by the car is:
  A)
  25 km
  done clear
  B)
  32 km
  done clear
  C)
  45 km
  done clear
  D)
  40 km
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer21)
  Which among the following is not a part of our respiratory system?
  A)
  Diaphragm
  done clear
  B)
  Bronchus
  done clear
  C)
  Bronchioles
  done clear
  D)
  lleum
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer22)
  In which one of the following processes, heat is transferred from colder part of a material to hotter part of the material?
  A)
  Conduction
  done clear
  B)
  Convection
  done clear
  C)
  Radiation
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer23)
  At the time of short circuit, the current in the circuit:
  A)
  reduces substantially
  done clear
  B)
  does not change
  done clear
  C)
  increases heavily
  done clear
  D)
  varies continuously
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer24)
  Which region of the Earth among the following has the coldest air?
  A)
  Equator
  done clear
  B)
  \[30{}^\circ N\] latitude
  done clear
  C)
  \[60{}^\circ S\] latitude
  done clear
  D)
  \[90{}^\circ N\] latitude
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer25)
  Sewage includes household wastewater from:
  A)
  washing machine
  done clear
  B)
  washbasin
  done clear
  C)
  bathroom shower
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer26)
  A real image is formed when light rays coming from an object:
  A)
  actually meet at a point after reflection from the mirror.
  done clear
  B)
  appear to meet at a point after reflection from the mirror but actually do not meet.
  done clear
  C)
  diverges in different direction after reflection from a mirror.
  done clear
  D)
  are completely absorbed by a black object.
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer27)
  "Every drop counts" is a slogan related to:
  A)
  counting of drops of any liquid
  done clear
  B)
  counting of water drops
  done clear
  C)
  importance of water
  done clear
  D)
  importance of counting
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer28)
  Who among the following prevents the dead plants, dead animals and animal wastes from piling up in the forest?
  A)
  Herbivores and decomposers
  done clear
  B)
  Decomposers and scavengers
  done clear
  C)
  Scavengers and herbivores
  done clear
  D)
  Herbivores and carnivores
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer29)
  Which layer of a forest receives the maximum amount of sunlight?
  A)
  Canopy
  done clear
  B)
  Understorey
  done clear
  C)
  Shrub layer
  done clear
  D)
  Forest floor
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer30)
  A cyclone is formed over:
  A)
  very cold sea water in polar region.
  done clear
  B)
  warm sea water in tropical areas.
  done clear
  C)
  warm sand in deserts in tropical areas.
  done clear
  D)
  high lands like mountains in hilly areas.
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer31)
  What comes in place of the question mark (?)? Python : Reptile :: Rat: ?
  A)
  Amphibian
  done clear
  B)
  Mammal
  done clear
  C)
  Omnivores
  done clear
  D)
  Vertebrates
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer32)
  Find the missing number in place of the question mark (?).
  A)
  11
  done clear
  B)
  13
  done clear
  C)
  23
  done clear
  D)
  17
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer33)
  A dog runs 20 metres towards East then turns right, runs 10 metres and turns right again, runs 9 metres and turns left, runs 5 metres and turns left again, runs 12 metres and finally turns left and runs 6 metres. 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
  View Answer play_arrow

• question_answer34)
  If 'LION' is coded as 'KKNP' in a certain language, then find the code for 'HOME'.
  A)
  GQGL
  done clear
  B)
  GQLL
  done clear
  C)
  GQLG
  done clear
  D)
  GLQG
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer35)
  Find the missing number in place of the question mark (?).
  A)
  45
  done clear
  B)
  35
  done clear
  C)
  25
  done clear
  D)
  41
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer36)
  B is the daughter of C's only daughter. How is C related to B's father, if C is a woman?
  A)
  Grandmother
  done clear
  B)
  Mother-in-law
  done clear
  C)
  Sister
  done clear
  D)
  Mother
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer37)
  Find the missing term in the series given below. 57, 87, 49, 80, 42, 74, 36, ?
  A)
  71
  done clear
  B)
  75
  done clear
  C)
  53
  done clear
  D)
  69
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer38)
  A figure given below is an unfolded position of a cubical dice. Which of the given dices are identical to the given unfolded dice?
  A)
  
  done clear
  B)
  
  done clear
  C)
   
  done clear
  D)
  
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer39)
  Find the odd one out.
  A)
  DEVW
  done clear
  B)
  GHMN
  done clear
  C)
  JKNO
  done clear
  D)
  CBED
  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 11' 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
  View Answer play_arrow

• question_answer41)
  Some terms are missing in the table given below. Choose the correct option to make the table complete.

  Compound	Formula
  Glucose	\[\underline{\,\,\,\,P\,\,\,\,}\]
  \[\underline{\,\,\,\,Q\,\,\,\,}\]	\[\underline{\,\,\,\,R\,\,\,\,}\]
  \[\underline{\,\,\,\,S\,\,\,\,}\]	\[KMn{{O}_{4}}\]
  \[\underline{\,\,\,\,T\,\,\,\,}\]	\[N{{a}_{2}}{{B}_{4}}{{O}_{7}}\]

  A)
  \[P-{{C}_{6}}{{H}_{12}}{{O}_{6}}\], Q-hydrochloric acid, \[R-HN{{O}_{3}}\], S-potassium permanganate, T-borax
  done clear
  B)
  \[P-{{C}_{6}}{{H}_{12}}{{O}_{6}}\], Q-nitric acid, \[R-HN{{O}_{3}}\], S-potassium permanganate, T-borax
  done clear
  C)
  \[P-{{C}_{11}}{{H}_{22}}{{O}_{11}}\], Q-nitric acid, \[R-HN{{O}_{3}}\], S-potassium nitrate, T-borax
  done clear
  D)
  \[P-{{C}_{6}}{{H}_{12}}{{O}_{6}}\], Q-nitric acid, \[R-HN{{O}_{3}}\], S-potassium   permanganate,   T-sodium hydroxide
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer42)
  Look at the figure given below and choose the correct option.
  A)
  L-left atrium, M-aorta, N-pulmonary artery, O-pulmonary vein, P-right ventricle
  done clear
  B)
  L-left atrium, M-pulmonary artery, N-aorta, O-pulmonary vein, P-right ventricle
  done clear
  C)
  L-left atrium, M-aorta, N-pulmonary vein, O-pulmonary artery, P-right ventricle
  done clear
  D)
  L-left ventricle, M-aorta, N-pulmonary artery, O-pulmonary vein, P-right atrium
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer43)
  Match the following.

  A.	Smallest unit of life	I.	cell membrane
  B.	Outer covering of cell	II.	lysosome
  C.	Jelly-like material	III.	cytoplasm
  D.	Sucidal bag of cell	IV.	Cell
  E.	Group of cells	V.	tissues

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

• question_answer44)

  Which combination statements is correct?

  i. Hydra uses its tentacles to catch food.

  ii. Mosquito sucks up the blood of animals with its proboscis.

  iii. The food moves in the alimentary canal by the process of peristalsis.

  iv. The body of amoeba has finger-like projections called villi.

  v. In amoeba, food is digested in cytoplasm and not in food vacuole.

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

• question_answer45)

  Choose the correct combination of statements from the following.

  I. Fuses are inserted in electric circuits of all buildings.

  ii. There is a maximum limit of the current which can safely flow through the electric circuits.

  iii. There is a minimum limit of the current which            can safely flow through the electric circuits.

  iv. If a proper fuse is inserted in a circuit, it will blow off, if current exceeds the safe limit.

  v. A fuse works on the principle of magnetic effect of current.

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

• question_answer46)

  Fill in the blanks with the correct combination of words.

  The role of\[\underline{\,\,\,\,L\,\,\,\,}\]in the\[\underline{\,\,\,\,M\,\,\,\,}\]is to\[\underline{\,\,\,\,N\,\,\,\,}\]the surface area for the rapid \[\underline{\,\,\,\,O\,\,\,\,}\] of\[\underline{\,\,\,\,P\,\,\,\,}\].

  A)
  L-villi, M-large intestine, N-decrease, O-absorption, P-digested food
  done clear
  B)
  L-cilia, M-small intestine, N-increase, O-assimilation, P-digested food
  done clear
  C)
  L-villi, M-small intestine, N-increase, O-absorption, P-digested food
  done clear
  D)
  L-villi, M-small intestine, N-increase, O-assimillation, P-digested food
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer47)

  Which combination of statements is incorrect?

  i. All substances are either acidic or basic.

  ii. Lime water turns red litmus blue.

  iii. Common salt dissolved in water turns blue litmus red.

  iv. Phenolphthalein is a natural indicator.

  v. Calamine can be used to treat ant's sting.

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

• question_answer48)

  Look at the bird given below and choose correct combination of statements regarding the bird.

  i. The bird is found in tropical rainforest.

  ii. It spends most of its time in water.

  iii. It has 8 toes on each foot.

  iv. Its feet is adapted to grasp the branches of trees firmly.

  v. It mostly depends on fish for its food.

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

• question_answer49)
  Match the following.

  A.	Dandelion seed	I.	explosion
  B.	Coconut seed	II.	wind
  C.	Xanthium seed	III.	water
  D.	Geranium seed	IV.	animal

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

• question_answer50)

  Fill in the blanks with the correct combination of words.

  When \[\underline{\,\,\,\,P\,\,\,\,}\] moves \[\underline{\,\,\,\,Q\,\,\,\,}\] and \[\underline{\,\,\,\,R\,\,\,\,}\] and diaphragm moves \[\underline{\,\,\,\,S\,\,\,\,}\] , the space in the chest cavity\[\underline{\,\,\,\,T\,\,\,\,}\].

  As a result air is pushed out from the lungs.

  A)
  P-ribcage, Q-downward, R-inward, S-downward, T-decreases
  done clear
  B)
  P-ribcage, Q-downward, R-inward, S-upward, T-increases
  done clear
  C)
  P-ribcage, Q-downward, R-inward, S-upward, T-decreases
  done clear
  D)
  P-ribcage, Q-upward, R-inward, S-upward, T-decreases
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow