7th Class Science Sample Paper

done Science Sample Paper - 4 Total Questions - 36   

• question_answer1)

  Choose the correct option:

  (i) Stomach secretes:

   
  A)
  \[HCI\]      
  done clear
  B)
  \[{{H}_{2}}S{{O}_{4}}\]
  done clear
  C)
   \[C{{H}_{3}}COOH\]                         
  done clear
  D)
  \[NaOH\]
  done clear
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• question_answer2)

  Choose the correct option:

  (ii) Which method is used to prevent rusting?

   
  A)
  Galvanisation       
  done clear
  B)
  Crystallisation
  done clear
  C)
  Sedimentation                       
  done clear
  D)
  None of these
  done clear
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• question_answer3)

  Choose the correct option:

  (iii) The tropical desert climate is found in:

   
  A)
  Rajasthan          
  done clear
  B)
  Kerala
  done clear
  C)
  Kashmir                               
  done clear
  D)
  Delhi
  done clear
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• question_answer4)

  Choose the correct option:

  (iv) Which one of the following places is unlikely to be affected by a cyclone?

   
  A)
  Chennai                   
  done clear
  B)
  Mangalura (Mangalore)
  done clear
  C)
  Amritsar  
  done clear
  D)
  Puri
  done clear
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• question_answer5)

  Choose the correct option:

  (v) The hardest layer of the soil is:

   
  A)
  The topsoil               
  done clear
  B)
  The middle layer
  done clear
  C)
  The third layer              
  done clear
  D)
  The lower most layer
  done clear
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• question_answer6)

  Choose the correct option:

  (vi) The end product of respiration are:

   
  A)
  \[C{{O}_{2}}\] and energy       
  done clear
  B)
  \[C{{O}_{2}}\] and water
  done clear
  C)
  \[C{{O}_{2}}\] and oxygen      
  done clear
  D)
  \[C{{O}_{2}}\] water and energy
  done clear
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• question_answer7)

  Choose the correct option:

  (vii) Water absorption through roots can be increased by keeping the plants:

   
  A)
  in the shade              
  done clear
  B)
  in dim light
  done clear
  C)
  under the fan               
  done clear
  D)
  covered with a polythene bag
  done clear
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• question_answer8)

  Choose the correct option:

  (viii) A spore producing plant is:

   
  A)
  rose                                     
  done clear
  B)
  bread mould
  done clear
  C)
  potato                                              
  done clear
  D)
  ginger
  done clear
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• question_answer9)

  Choose the correct option:

  (ix) Distance is a

   
  A)
  Vector quantity                     
  done clear
  B)
  Scalar quantity
  done clear
  C)
  Both (a) and (b)                   
  done clear
  D)
  None of these
  done clear
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• question_answer10)

  Choose the correct option:

  (x)  The device used for measuring current:

   
  A)
  Compass                              
  done clear
  B)
  Ammeter
  done clear
  C)
  Voltmeter                                         
  done clear
  D)
  Potentiometer
  done clear
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• question_answer11)
  (i) Name the part of alimentary canal where digested food gets absorbed.
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• question_answer12)
  (ii)  What is temperature?
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• question_answer13)
  (iii) What are the two main kinds of changes?
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• question_answer14)
  (iv) Name the term used for removal of undigested food from our body.
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• question_answer15)
  (v)  A spaceship travels 36000 km in one hour. Express its speed in km/s.
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• question_answer16)
  (vi) Give the term used for water which is black-brown, oily and rich in lather.
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• question_answer17)
  How are silk fibres at different textures prepared?
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• question_answer18)
  What are insulators?
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• question_answer19)
  Explain aerobic respiration?
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• question_answer20)
  Give two differences between arteries and veins.
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• question_answer21)
  What is drip irrigation?
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• question_answer22)
  What is food chain?
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• question_answer23)
  Mention the factors which are causing scarcity of fresh water.
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• question_answer24)

  (a) Draw a diagram of a pitcher plant to show the following parts:

  (i) Pitcher

  (ii) Lid

  (b) What is the mode of nutrition of this plant?

  (c) Is it an autotroph or partial heterotroph?

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• question_answer25)
  Boojho and Paheli were eating their food hurriedly so that they could go out and play during the recess. Suddenly, Boojho started coughing violently. Think of the reasons why he was coughing and discuss with your friends.
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• question_answer26)
  Write three differences between an organic acid and a mineral add.
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• question_answer27)
  When a candle burn, both physical and chemical changes occur. Explain?
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• question_answer28)
  How does sun cause the changes in the weather?
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• question_answer29)
  What is an anemometer? Explain with the help of a diagram.
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• question_answer30)
  What are chemical fertilizers? Write their harmful effects.
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• question_answer31)
  How do the electric heater and an electric iron work?
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• question_answer32)
  How will you prove that light travel in straight line?
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• question_answer33)
  Explain the factors responsible for the depletion of water table.
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• question_answer34)
  Explain respiration in plants.
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• question_answer35)
  Explain composition of blood.
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• question_answer36)

  (i) What is the asexual reproduction? Name any two methods of asexual reproduction with one example each.

  (ii) Sketch the reproductive parts of a flower.

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