7th Class Science Sample Paper

done Science Olympiad Model Test Paper-13 Total Questions - 40    [Download]

• question_answer1)
  Name to the cells that have been indicated by the letter A?
  A)
  Dark cell
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  B)
  Light cell
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  C)
  Guard cell
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  D)
  Leaf cell
  done clear
  E)
  None of these
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• question_answer2)
  Which one of the following represents ear drum in the figure?
  A)
  A
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  B)
  D
  done clear
  C)
  C
  done clear
  D)
  F
  done clear
  E)
  None of these
  done clear
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• question_answer3)
  Which one of the following properties is not correct about the image, which is formed when an object is placed at the centre of curvature of a concave mirror?
  A)
  The image is real
  done clear
  B)
  The image is inverted
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  C)
  The image is of same size as the object
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  D)
  The image is formed at the focus
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  E)
  None of these
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• question_answer4)
  What kind of thermometer has been shown in the figure given below?
  A)
  Laboratory thermometer
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  B)
  Clinical thermometer
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  C)
  Digital thermometer
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  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer5)
  Look at the following figure : By which one of the following ways heat energy reaches from end A to end B?
  A)
  Conduction
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  B)
  Convection
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  C)
  Advection
  done clear
  D)
  Radiation
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  E)
  None of these
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• question_answer6)
  Which one of the following acids is present in spinach?
  A)
  Nitric acid
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  B)
  Formic acid
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  C)
  Sulphuric acid
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  D)
  Oxalic acid
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  E)
  None of these
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• question_answer7)

  Look at the following equation

  Magnesium oxide + Water \[\to \] Magnesium hydroxide

  What kind of change does the above equation represent?

  A)
  Physical change
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  B)
  Chemical change
  done clear
  C)
  No change
  done clear
  D)
  All of these
  done clear
  E)
  None of these
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• question_answer8)
  Name the layer, which has been indicated by the letter A in the figure.
  A)
  Crust
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  B)
  Mantle
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  C)
  Outer core
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  D)
  Inner core
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  E)
  None of these
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• question_answer9)
  Which one of the following incidents is known as short circuit?
  A)
  Drawing of large amount of current from a single socket
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  B)
  Touching of live wire with the neutral wire
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  C)
  Cutting off of the household circuit
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  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer10)
  What are the end products of the aerobic respiration?
  A)
  Carbon dioxide, water and energy
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  B)
  Carbon dioxide, alcohol and energy
  done clear
  C)
  Carbon dioxide, lactic acid and energy
  done clear
  D)
  Alcohol, water and energy
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  E)
  None of these
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• question_answer11)
  Choose the correct option for the "one calorie heat energy"
  A)
  It can increase the temperature of one gram water by \[1{}^\circ C\]
  done clear
  B)
  It can increase the temperature of one kilo gram water by \[10{}^\circ C\]
  done clear
  C)
  It can increase the temperature of one gram water by \[10{}^\circ C\]
  done clear
  D)
  It can increase the temperature of one kilo gram water by \[10{}^\circ C\]
  done clear
  E)
  None of these
  done clear
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• question_answer12)
  Choose the salt from the following equation \[NaOH+HCl\to NaCl+{{H}_{2}}O\]
  A)
  \[NaOH\]
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  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_answer13)
  In the following figure, melting of ice cream has been shown. What kind of change has been shown with the help of above figure?
  A)
  Physical change
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  B)
  Chemical change
  done clear
  C)
  Biological change
  done clear
  D)
  No change
  done clear
  E)
  None of these
  done clear
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• question_answer14)
  In which one of the following conditions an object is said to be accelerated or retarded?
  A)
  When object is moving with uniform velocity
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  B)
  When object is moving with non-uniform velocity
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  C)
  When object is in rest
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  D)
  All of these negative
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  E)
  None of these
  done clear
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• question_answer15)
  Which one of the following is true about one ampere?
  A)
  One ampere represents the flow of one coulomb of electrical charge per second
  done clear
  B)
  One ampere represents the flow of ten coulomb of electrical charge per second
  done clear
  C)
  One ampere represents the flow of one coulomb of electrical charge per minute
  done clear
  D)
  One ampere represents the flow of ten coulomb of electrical charge per hour
  done clear
  E)
  None of these
  done clear
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• question_answer16)

  Which of the following statements is true?

  Statement A: Aluminium wire is a good conductor of electricity.

  Statement B: Aluminium wire is a bad conductor of electricity.

  A)
  Statement A is False and Statement B is True.
  done clear
  B)
  Both, Statement A and Statement B are True.
  done clear
  C)
  Both, Statement A and Statement B are False.
  done clear
  D)
  Statement B is False and Statement A is True.
  done clear
  E)
  None of these
  done clear
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• question_answer17)
  Name the part, which has been indicated by the letter A.
  A)
  Cell body
  done clear
  B)
  Dendrites
  done clear
  C)
  Myelin sheath
  done clear
  D)
  Axon
  done clear
  E)
  None of these
  done clear
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• question_answer18)
  Application of electric bell is based on which one of the following effects of current?
  A)
  Heating effect
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  B)
  Magnetic effect
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  C)
  Chemical effect
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  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer19)
  Recognize the figure given below Which one of the following kind of mirror has been shown in the above figure?
  A)
  Simple mirror
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  B)
  Plane mirror
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  C)
  Convex mirror
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  D)
  Concave mirror
  done clear
  E)
  None of these
  done clear
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• question_answer20)
  Look at the given figure carefully. In the above figure, what kind of transformation of the heat energy has been shown?
  A)
  Conduction
  done clear
  B)
  Convection
  done clear
  C)
  Radiation
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer21)
  The part of the flower, which has been indicated by the letter E in the figure contains the female gametes. What is its name?
  A)
  Ovary
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  B)
  Stigma
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  C)
  Style    
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  D)
  Ovule
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  E)
  None of these
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• question_answer22)
  What was the basis of measuring time by the device, Sundial?
  A)
  It measures the time by the position of sun in the sky
  done clear
  B)
  It measures the time by the position of a fixed star in the sky
  done clear
  C)
  It measures the time by the position of a fixed object in the sky
  done clear
  D)
  It measures the time by the position of the shadow cast by the sun
  done clear
  E)
  None of these
  done clear
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• question_answer23)
  Pulmonary vein is connected to which one of the following parts of the heart?
  A)
  Right atrium
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  B)
  Left atrium
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  C)
  Left ventricle
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  D)
  Right ventricle
  done clear
  E)
  None of these
  done clear
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• question_answer24)
  Which one of the following letters indicate the eye of the cyclone?
  A)
  A
  done clear
  B)
  B
  done clear
  C)
  C
  done clear
  D)
  Both A and B
  done clear
  E)
  None of these
  done clear
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• question_answer25)
  Which one of the following letters indicate the part of the tongue that detects the salty taste?
  A)
  a
  done clear
  B)
  b
  done clear
  C)
  c
  done clear
  D)
  d
  done clear
  E)
  None of these
  done clear
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• question_answer26)

  Which of the following statement is true?

  Statement A: Fats are chemically known as lipids.

  Statement B: Fats are made up of fatty acids and glycerol.

  A)
  Statement A is false and statement B is true
  done clear
  B)
  Both, statement A and statement B are true
  done clear
  C)
  Both, statement A and statement B are false
  done clear
  D)
  Statement B is false and statement A is true
  done clear
  E)
  None of these
  done clear
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• question_answer27)
  Which of the following plants manufacture their own food, but partially depend on insects?
  A)
  Pitcher plant
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  B)
  Peepal plant
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  C)
  Mulberry plant
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  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer28)
  Which one of the following parts of flower contains female sex cell?
  A)
  Ovary
  done clear
  B)
  Stigma
  done clear
  C)
  Filament
  done clear
  D)
  Anther
  done clear
  E)
  None of these
  done clear
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• question_answer29)
  How many chromosomes a female sex cell contains?
  A)
  23
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  B)
  46
  done clear
  C)
  44
  done clear
  D)
  52
  done clear
  E)
  None of these
  done clear
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• question_answer30)
  Motion of a car on a straight path is an example of_____
  A)
  Rectilinear motion
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  B)
  Circular motion
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  C)
  Rotatory motion
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  D)
  Periodic motion
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  E)
  None of these
  done clear
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• question_answer31)
  Graphical representation of motion of two different body has been shown in the graph given below. What type of motion is described by both the body?
  A)
  Uniform motion
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  B)
  Non-uniform motion
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  C)
  Periodic motion
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  D)
  Circular motion
  done clear
  E)
  None of these
  done clear
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• question_answer32)
  How many years are there in a millennium?
  A)
  10 years
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  B)
  100 years
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  C)
  1000 years
  done clear
  D)
  10000 years
  done clear
  E)
  None of these
  done clear
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• question_answer33)
  Two completely filled water bottles are turned upside down, two rubber tubes are connected at the mouth of the bottles. How will they release water fast through connected rubber tubes?
  A)
  By putting them into cold water
  done clear
  B)
  Punching on the rubber tubes
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  C)
  Punching on the bottles
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer34)
  The earth's atmosphere is layered according to the availability of gases, temperature and altitude. Which one of the following layers is found between the thermosphere and stratosphere?
  A)
  Troposphere
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  B)
  Exosphere
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  C)
  Mesosphere
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  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer35)
  Air pressure on the Mount Everest with respect to sea level is:
  A)
  More
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  B)
  Lesser
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  C)
  Equal
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  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer36)
  Which one of the following allows light to pass through it partially?
  A)
  Translucent
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  B)
  Opaque
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  C)
  some transparent objects
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  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer37)
  The image is formed by a plane mirror is due to the reflection of light. Why an image is called virtual when it is formed by a plane mirror?
  A)
  It can be obtained on the screen
  done clear
  B)
  It cannot be obtained on the screen
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  C)
  Real image is formed
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
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• question_answer38)
  If distance of centre of curvature and focus of a spherical mirror is A m, find the distance between focus and pole of the mirror.
  A)
  2A m
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  B)
  A m
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  C)
  3A m
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  D)
  A/4 m
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  E)
  None of these
  done clear
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• question_answer39)
  Water is converted into vapour at a certain temperature. The conversion of water into vapour is called :
  A)
  Condensation
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  B)
  Evaporation
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  C)
  Sublimation
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  D)
  All of these
  done clear
  E)
  None of these
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• question_answer40)
  Which one of the following temperature is known as the lower fixed point for the Kelvin scale?
  A)
  \[243{}^\circ K\]
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  B)
  \[234{}^\circ K\]
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  C)
  \[273{}^\circ K\]
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  D)
  All of these
  done clear
  E)
  None of these
  done clear
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