7th Class Science Sample Paper

done Science Sample Paper - 2 Total Questions - 39    [Download]

• question_answer1)

  Choose the correct option:

  (i) The lightning conductor used to protect high rise buildings is made up of:

   
  A)
  Ebonite                                
  done clear
  B)
  Aluminium
  done clear
  C)
  Steel                   
  done clear
  D)
  Copper.
  done clear
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• question_answer2)

  Choose the correct option:

  (ii)  The water holding capacity is the highest in:

   
  A)
  Sandy soil  
  done clear
  B)
  Clayey soil
  done clear
  C)
  loamy soil           
  done clear
  D)
  Mixture of sand & loam
  done clear
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• question_answer3)

  Choose the correct option:

  (iii) During exhalation, the ribs:

   
  A)
  move outwards   
  done clear
  B)
  move downwards
  done clear
  C)
  move upwards    
  done clear
  D)
  do not move at all
  done clear
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• question_answer4)

  Choose the correct option:

  (iv) Which controls blood circulation?

  A)
  Lungs                 
  done clear
  B)
  Kidney
  done clear
  C)
  Heart             
  done clear
  D)
  Liver
  done clear
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• question_answer5)

  Choose the correct option:

  (v) The 'eye' of the potato plant signifies what:

   
  A)
  the root is to any plant
  done clear
  B)
  the bud is to a flower
  done clear
  C)
  the bud is to Bryophyllum leaf
  done clear
  D)
  the another is to stamen
  done clear
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• question_answer6)

  Choose the correct option:

  (vi) Bryophyllum can reproduce by its:

   
  A)
  stem                
  done clear
  B)
  leaves
  done clear
  C)
  roots                   
  done clear
  D)
  flower
  done clear
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• question_answer7)

  Choose the correct option:

  (vii) A solar day is:

   
  A)
  24 h                                    
  done clear
  B)
  1440mm
  done clear
  C)
  86400 sec           
  done clear
  D)
  All of these
  done clear
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• question_answer8)

  Choose the correct option:

  (viii) A fuse wire is made up of:

   
  A)
  Cu and Pb  
  done clear
  B)
  Pb and Sn
  done clear
  C)
  Al and Sn           
  done clear
  D)
  Pb and Al
  done clear
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• question_answer9)

  Choose the correct option:

  (ix) A virtual image is always:

   
  A)
  Erect         
  done clear
  B)
  Magnified
  done clear
  C)
  Smaller               
  done clear
  D)
  Diminished
  done clear
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• question_answer10)

  Choose the correct option:

  (x) Purest form of water is:

   
  A)
  Rainwater     
  done clear
  B)
  Spring water
  done clear
  C)
  Ground water
  done clear
  D)
  Lake water
  done clear
  E)
  None of these
  done clear
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• question_answer11)
  (i) What is the function of chlorophyll?
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• question_answer12)
  (ii) Why do we wear wollen clothes during winter?
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• question_answer13)
  (iii) What kind of change is shown by tearing of paper?
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• question_answer14)
  (iv) Which type of soil contains more humus?
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• question_answer15)
  (v) Name the tiny pores in the leaves through which exchange of gases takes place?
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• question_answer16)
  (vi) What is a chemical toilet?
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• question_answer17)
  Explain the process to obtain silk thread from cocoon.       
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• question_answer18)
                                                                          Why is ice wrapped in gunny bags?   
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• question_answer19)
                                                                                                                                                  What happens when a non-metallic oxide is dissolved in water? Give examples                                              
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• question_answer20)
  What are the components of blood?                                                                                                         
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• question_answer21)
  Explain the types of reproduction?                                                                                                            
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• question_answer22)
  What is rain water harvesting?                                                                                                                 
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• question_answer23)
  What will be the consequences of deforestation?                            
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• question_answer24)

  (i) Identify the following figure and label the parts marked as A and B.

  (ii) Which position of stomata-open or closed, has been shown in the figure?

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• question_answer25)
  What is large intestine? Write its function.   
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• question_answer26)
                                                                                      Explain, with examples, why we find animals of certain kind living in particular climatic conditions   
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• question_answer27)
                                                                                                  Explain how uneven heating between equator and the poles generates wind current.        
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• question_answer28)
  List similarities and differences between aerobic and anaerobic respiration     
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• question_answer29)

  Boojho goes to the football ground to play football. The distance time graph of his journey from his home to the ground is given as shown in figure.

  (i) What does the graph between point B and C indicate about the motion of Boojho?

  (ii) Is the motion between 0 to 4 minutes uniform or non-uniform?

  (iii) What is his speed between 8 and 12 minutes of his journey?

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• question_answer30)
  Light takes 8.5 minutes to reach the earth from the sun. What is the distance between the sun and the earth? (Velocity of light is  per second).               
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• question_answer31)
  Consider the following ray diagram. Answer the following questions: (i) Which lens is used?                                                                                                                            
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• question_answer32)
  (ii) What are the characteristics of the image formed?                                                                                 
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• question_answer33)
  (iii) How will the position of image change if position of object is changed?                                                   
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• question_answer34)
  People say that nothing goes waste in a forest. Can you explain. How?     
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• question_answer35)
                          What is potable water? Write its characteristics. 
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• question_answer36)
                                                                                                       Label five parts (A to E) of heart and state their functions.
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• question_answer37)
  What are the various modes of the disposal of fruits and seeds? Give examples?                                             
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• question_answer38)
  Explain the working of electric bell with diagram?                                            
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• question_answer39)
                                                                                                                                      Describe the water cycle in nature.                                                                                                            
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