7th Class Science Sample Paper

done Science Sample Paper - 8 Total Questions - 39    [Download]

• question_answer1)

  Choose the correct option:

  (i) A carnivore with stripes on its body moves very fast while catching its prey. It is likely to be found in:

  A)
  polar regions                              
  done clear
  B)
  deserts
  done clear
  C)
  oceans                                      
  done clear
  D)
  tropical rainforests
  done clear
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• question_answer2)

  Choose the correct option:

  (ii) Tornadoes are also called:

  A)
  Whirlwinds    
  done clear
  B)
  Hurricanes
  done clear
  C)
  Typhoons                                 
  done clear
  D)
  Cyclones
  done clear
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• question_answer3)

  Choose the correct option:

  (iii) Percolation rate is highest in:

  A)
  Sandy soil 
  done clear
  B)
  Loamy soil
  done clear
  C)
  Clayey soil                                
  done clear
  D)
  Equal in all
  done clear
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• question_answer4)

  Choose the correct option:

  (iv) Which of the following organisms can respire anaerobically?

  A)
  Amoeba                                   
  done clear
  B)
  Yeast
  done clear
  C)
  Paramecium                              
  done clear
  D)
  Euglena
  done clear
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• question_answer5)

  Choose the correct option:

  (v) Function of WBCs is:

  A)
  Transport of \[{{O}_{2}}\]         
  done clear
  B)
  Fight against germ
  done clear
  C)
  Help in clotting of blood      
  done clear
  D)
  None of these
  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) The distance moved by the vehicle is measured by:

  A)
  Odometer     
  done clear
  B)
  Galvanometer
  done clear
  C)
  Speedometer                             
  done clear
  D)
  Thermometer
  done clear
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• question_answer8)

  Choose the correct option:

  (viii) Which effects are produced by the electric current?

  A)
  Heating                                    
  done clear
  B)
  Magnetic
  done clear
  C)
  Chemical                                  
  done clear
  D)
  All of these
  done clear
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• question_answer9)

  Choose the correct option:

  (ix) The splitting of white light into seven colours is called:

  A)
  Reflection                                  
  done clear
  B)
  Dispersion
  done clear
  C)
  Deviation                                  
  done clear
  D)
  Polarization
  done clear
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• question_answer10)

  Choose the correct option:

  (x) The moisture content in air is expressed as:

  A)
  Water vapour                            
  done clear
  B)
  Humidity
  done clear
  C)
  Moist                                        
  done clear
  D)
  None of these
  done clear
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• question_answer11)
  Very Short Answer Type Questions (i) Give an example of a parasitic plant.
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• question_answer12)
  (ii) What is the SI unit of temperature?
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• question_answer13)
  (iii) Give two examples of physical change?
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• question_answer14)
  (iv) Name the different types of soil.
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• question_answer15)
  (v) What are the main respiratory organs in humans?
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• question_answer16)
  (vi) What is waste water.
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• question_answer17)
  Short Answer Type Questions-I What kind of animals in different regions are reared for obtaining wool?
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• question_answer18)
  It is observed that two thin woollen blankets are warmer than a thick woollen blanket. Comment.
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• question_answer19)
                                       Which acid does each cell in our body contain?
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• question_answer20)
                                    When strong/high speed wind blow, an umbrella held upright at times get upturned. Explain the reason.
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• question_answer21)
  A train is running at a speed of 45 km/hr. How long will it take to reach Luck now from Delhi when the distance between two stations is 350 km?
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• question_answer22)
  When does a real image form? Explain giving an example.
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• question_answer23)
  Nobody plants trees in forests, then how are so many trees found in forests?
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• question_answer24)
  Short Answer Type Questions-II Explain the various types of teeth in human beings.
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• question_answer25)
  Show that water is a bad conductor of heat.
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• question_answer26)
             

  Write products of the following reactions :

  (i) Sulphuric acid reacts with sodium hydroxide.

  (ii) Copper oxide reacts with hydrochloric acid.

  (iii) Sulphur dioxide reacts with sodium hydroxide.

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• question_answer27)

  What characteristics does a polar bear possess:

  (i) Protecting them from predators?

  (ii) Protecting them from extreme cold?

  (iii) Avoiding getting over heated?

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• question_answer28)
  What is transpiration? What is its significance?
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• question_answer29)
  Describe the various ways in which the seeds are dispersed.
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• question_answer30)
  Write three main differences between distance and displacement.
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• question_answer31)

  (i) Why does a glowing electric bulb become warm?

  (ii) Mention any two effects of electric current.

  (iii) Why does a glowing CFL not become warm?

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• question_answer32)
  Given below is a ray diagram of an experiment done with a mirror. Answer the following questions: (i) Name the mirror used.
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• question_answer33)
  (ii) What are the characteristics of the image formed?
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• question_answer34)
  (iii) How will the position of image change if the position of object is changed?
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• question_answer35)
            How do forests help in controlling flood & maintain steady supply of water?
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• question_answer36)
  Long Answer Type Questions                                                                                                 Describe various steps of cleaning waste water in a wastewater treatment plant.
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• question_answer37)
  Draw the ray diagrams for images formed by a convex lens under three different positions of object.
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• question_answer38)

  A chemical change may occur by one of the following changes:

  (i) Evolution of gas

  (ii) Change of colour

  (iii) Formation of precipitate

  (iv) Absorption or evolution of heat and light

  (v) Change of smell

  Give an example of each case.

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• question_answer39)
  Give a brief account of wool manufacturing.
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