7th Class Science Sample Paper

done Science Sample Paper - 1 Total Questions - 37    [Download]

• question_answer1)
   

  Choose the correct option:

  (i)   Plants take \[C{{O}_{2}}\] from the atmosphere mainly through their:

  A)
  roots                        
  done clear
  B)
  stem
  done clear
  C)
  flowers                    
  done clear
  D)
  leaves
  done clear
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• question_answer2)

  Choose the correct option:

  (ii)  The Bile juice is stored in:

   
  A)
  Gallbladder           
  done clear
  B)
  liver
  done clear
  C)
  Pancreas                
  done clear
  D)
  small intestine
  done clear
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• question_answer3)

  Choose the correct option:

  (iii) Which of the following does not yield wool?

   
  A)
  Yak                         
  done clear
  B)
  Camel
  done clear
  C)
  Goat                       
  done clear
  D)
  Woolly dog
  done clear
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• question_answer4)

  Choose the correct option:

  (iv) Heat is:

   
  A)
  A form of energy            
  done clear
  B)
  A type of matter
  done clear
  C)
  Neither energy nor matter    
  done clear
  D)
  None of these
  done clear
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• question_answer5)

  Choose the correct option:

  (v)  Neutralisation is a reaction between:

   
  A)
  Two acids                
  done clear
  B)
  Two bases
  done clear
  C)
  One acid and one base       
  done clear
  D)
  One acid and one neutral substance
  done clear
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• question_answer6)

  Choose the correct option:

  (vi) Which one is a chemical change?

   
  A)
  Burning of paper            
  done clear
  B)
  Germination of seed
  done clear
  C)
  Formation of coal from wood 
  done clear
  D)
  All of these
  done clear
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• question_answer7)

  Choose the correct option:

  (vii) The water vapour present in the air condenses in the form of:

   
  A)
  Rainfall                    
  done clear
  B)
  fog
  done clear
  C)
  Snow                       
  done clear
  D)
  All of these
  done clear
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• question_answer8)

  Choose the correct option:

  (viii) Water vapour comes to atmosphere due to:

   
  A)
  Respiration               
  done clear
  B)
  Evaporation
  done clear
  C)
  Transpiration          
  done clear
  D)
  All of these
  done clear
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• question_answer9)

  Choose the correct option:

  (ix) The branchy part of a tree above the stem is known as:

   
  A)
  Crown        
  done clear
  B)
  Canopy
  done clear
  C)
  Sampling                
  done clear
  D)
  Humus
  done clear
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• question_answer10)

  Choose the correct option:

  (x)  Sewage is mainly a:

   
  A)
  liquid waste   
  done clear
  B)
  solid waste
  done clear
  C)
  gaseous waste           
  done clear
  D)
  mixture of solid and gas
  done clear
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• question_answer11)
  Very Short Answer Type Questions

  (i) What is solar day?

             
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• question_answer12)

  (ii) What is a battery?

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• question_answer13)

  (iii) What is a plane mirror?

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• question_answer14)

  (iv) What is water table?

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• question_answer15)

  (v) Name some carnivores.

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• question_answer16)

  (vi) Which gas is released during treatment of sludge?

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• question_answer17)
  What are Lichens?
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• question_answer18)
  What do you understand by rumen?
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• question_answer19)
  Explain how lightning takes place.
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• question_answer20)
              How can a farmer convert acidic soil to neutral soil?
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• question_answer21)
  Why do you get cramps after heavy exercises?
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• question_answer22)
  In our heart, there is no mixing of oxygenated and deoxygenated blood. How is it made possible?
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• question_answer23)
  What are fruits? What are fleshly and dry fruits?
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• question_answer24)
  Describe the processing of fibres into wools.
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• question_answer25)
  State similarities and differences between the laboratory thermometer and the clinical thermometer
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• question_answer26)
  Explain how painting of an iron gate prevents it from rusting.
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• question_answer27)
  How does an elephant living in the tropical rainforest adapt itself?
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• question_answer28)
  Explain the differences between self-pollination and cross-pollination.
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• question_answer29)
  Describe the various ways by which the seeds are dispersed.
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• question_answer30)
  Salma takes 15 minutes from her house to reach her school on a bicycle. If the bicycle has a speed of 2 m/s, calculate the distance between her house and the school.
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• question_answer31)
  (i) Draw a circuit diagram to represent a circuit shown in the figure:
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• question_answer32)
  Explain why there is a need of variety of animals and plants in a forest.
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• question_answer33)
                          The terms sewage, sewers and sewerage are interlinked with each other. Can you explain how?
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• question_answer34)

  Paheli observed that most of the fish in the pond of her village were gradually dying. She also observed that the waste of a factory in their village was flowing into the pond which probably caused the fish to die.

  (i) Explain why the fish were dying.

  (ii) If the factory waste is acidic in nature, how can it be neutralised?

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• question_answer35)
  What is meant by soil erosion? What are its various causes and harms? How can it be checked? In which areas is soil erosion more severe?
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• question_answer36)
  Write the differences between respiration and combustion.
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• question_answer37)
  What are the various organic, inorganic and disease causing components of sewage?
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