8th Class Science Sample Paper

done Science Sample Paper-9 Total Questions - 37    [Download]

• question_answer1)

  Choose the correct option:

  (i) A ball rolling along the ground gradually slows down and finally comes to rest is an example of

  A)
  Muscular force               
  done clear
  B)
  Magnetic force
  done clear
  C)
  Frictional force   
  done clear
  D)
  Electrostatic force
  done clear
  View Answer play_arrow

• question_answer2)

  Choose the correct option:

  (ii) Sound can travel through

  A)
  Solids only                   
  done clear
  B)
  liquids only
  done clear
  C)
  Gases only                                
  done clear
  D)
  solids, liquids and gases.
  done clear
  View Answer play_arrow

• question_answer3)

  Choose the correct option:

  (iii) Which of the following is not a way to conserve water?

  A)
  replace    
  done clear
  B)
  reduce
  done clear
  C)
  reuse                                        
  done clear
  D)
  recycle
  done clear
  View Answer play_arrow

• question_answer4)

  Choose the correct option:

  (iv) The use of manure (which is not correct):

  A)
  Enhances the water holding capacity of the soil
  done clear
  B)
  Improves soil texture
  done clear
  C)
  Increases the number of friendly microbes
  done clear
  D)
  Also becomes a source of water pollution
  done clear
  View Answer play_arrow

• question_answer5)

  Choose the correct option:

  (v) Which is the plant disease caused by micro-organism?

  A)
  Measles                        
  done clear
  B)
  Small pox
  done clear
  C)
  Citrus Canker
  done clear
  D)
  Polio
  done clear
  View Answer play_arrow

• question_answer6)

  Choose the correct option:

  (vi) Rayon is obtained by

  A)
  Petroleum products
  done clear
  B)
  Fully synthetic method
  done clear
  C)
  Chemical treatment of wood pulp
  done clear
  D)
  All methods
  done clear
  View Answer play_arrow

• question_answer7)

  Choose the correct option:

  (vii) Sodium metal is stored in

  A)
  Oil                                           
  done clear
  B)
  Petrol
  done clear
  C)
  Kerosene   
  done clear
  D)
  Diesel
  done clear
  View Answer play_arrow

• question_answer8)

  Choose the correct option:

  (viii) The world?s first oil well was drilled in:

  A)
  USSR                                       
  done clear
  B)
  USA
  done clear
  C)
  India                                        
  done clear
  D)
  UK
  done clear
  View Answer play_arrow

• question_answer9)

  Choose the correct option:

  (ix) Which among the following is considered as the cleanest fuel?

  A)
  Cow dung cake                          
  done clear
  B)
  Kerosene
  done clear
  C)
  Petrol                                       
  done clear
  D)
  Hydrogen gas
  done clear
  View Answer play_arrow

• question_answer10)

  Choose the correct option:

  (x) Which of the following is not a cell?

  A)
  RBC                                         
  done clear
  B)
  Bacterium
  done clear
  C)
  Spermatozoa                             
  done clear
  D)
  Virus
  done clear
  View Answer play_arrow

• question_answer11)

  Give a suitable word for each of the following statements:

  (i) Chemicals which control changes at adolescence stage.

  View Answer play_arrow

• question_answer12)

  Give a suitable word for each of the following statements:

  (ii) Force exerted by a magnet on a piece of iron.

  View Answer play_arrow

• question_answer13)

  Give a suitable word for each of the following statements:

  (iii) The substance that reduces friction.

  View Answer play_arrow

• question_answer14)

  Give a suitable word for each of the following statements:

  (iv) The characteristic of sound that determines loudness.

  View Answer play_arrow

• question_answer15)

  Give a suitable word for each of the following statements:

  (v) Device used to check current.

  View Answer play_arrow

• question_answer16)

  Give a suitable word for each of the following statements:

  (vi) The Brightest star in the sky located close to Orion.

  View Answer play_arrow

• question_answer17)
  Who discovered the first antibiotic? Name any two antibiotics.                                 
  View Answer play_arrow

• question_answer18)
        Write any two properties of nylon.                                                                                                
  View Answer play_arrow

• question_answer19)
  What is carbonization?                                                                                                                            
  View Answer play_arrow

• question_answer20)
  When kerosene oil is heated a little, it will catch fire. But when wood is heated a little, it does not catch fire. Why?
  View Answer play_arrow

• question_answer21)
                                                                                                  What is desertification?   
  View Answer play_arrow

• question_answer22)
                                                                                                                                                                               Draw a diagram of Amoeba. Name the locomotory organ in it.    
  View Answer play_arrow

• question_answer23)
                                                  Write difference between viviparous and oviparous animals.                                                                    
  View Answer play_arrow

• question_answer24)

  Name the disease or side effects caused by deficiency of following hormones:

  (a) Thyroxine

  (b) Insulin

  (c) Adrenaline

  View Answer play_arrow

• question_answer25)
  What does frictional force exerted on an object in a fluid depend on?           
  View Answer play_arrow

• question_answer26)
                          What happens when electricity is passed through ordinary water?     
  View Answer play_arrow

• question_answer27)

  The oviducts of a woman are blocked. So doctor advised her for IVF.

  (a) What is the full form of IVF?

  (b) Why IVF is suggested to the woman? Justify.

  (c) What do you call these babies born through this technique.

   
  View Answer play_arrow

• question_answer28)
              What are the advantages of manure?                                                                                                        
  View Answer play_arrow

• question_answer29)
  Explain the various shapes of bacteria.                                                                                                     
  View Answer play_arrow

• question_answer30)
  What is rayon? Why is it called artificial silk? What are the uses of rayon?                                                     
  View Answer play_arrow

• question_answer31)

  Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.

  (i) How will she find the nature of the gas?

  (ii) Write down word equations of all reactions taking place in this process.

  View Answer play_arrow

• question_answer32)
  Make a labelled diagram of a candle flame.                                                                                               
  View Answer play_arrow

• question_answer33)

  What will happen if :

  (i) we go on cutting trees?

  (ii) the habitat of an animals is disturbed?

  (iii) the top layer of soil is exposed?

  View Answer play_arrow

• question_answer34)
    Explain traditional ways of purifying water to make it fit for drinking.                                                                        
  View Answer play_arrow

• question_answer35)
  Describe the 'Green House Effect' in your own words.                                                                                 
  View Answer play_arrow

• question_answer36)
  Draw sketches to show the relative positions of prominent stars in (i) Ursa Major and (ii) Orion.
  View Answer play_arrow

• question_answer37)
  Write Do's and Don'ts during a thunderstorm.
  View Answer play_arrow