Science Quiz for Class 8

With the ECTI, you will learn through the Science Quiz for Class 8 in a continuous testing process. It will help you prepare the particular topic in a row. 

On the other hand, repeated practice will ensure your grip for the best preparation. 

I am sure that the level of Science Quiz for Class 8 MCQs With The Answer is helpful material in preparing for tests, quizzes, and examinations for a grade. 

I carefully picked the most repeated but important Science MCQs of Class 8

In the future, I will add more Science MCQs For Class 8. If you could provide me with some valuable feedback on the selection of MCQs, I would appreciate it.

Science Quiz for Class 8 Instructions:

  • There will be 30 multiple choice questions in this Quiz.
  • Answers to the questions will change randomly each time you start this Quiz.
  • Practice this Quiz at least three times to secure High Marks.
  • You can see your scores and ratings at the end of the Quiz.
  • If you found any incorrect answers in the Quiz, click on the quiz title and comment on that MCQ so our team can update the incorrect answer on time.

  • Question of

    Polio and chicken pox are caused by _______.

    • virus
    • bacteria
    • fungi
    • worms
  • Question of

    Some medicines obtained from micro-organisms are applied to kill or stop the growth of disease-causing microorganisms. Such medicines are called ______.

    • Antibiotics
    • Antiseptics
    • Antibodies
    • All of them
  • Question of

    The process of conversion of sugar into alcohol by yeast is called ________.

    • Fermentation
    • Pasteurization
    • Alcoholism
    • All of them
  • Question of

    The pores in the bread is due to gas bubbles of _______.

    • Carbon dioxide
    • Nitrogen
    • Nitrogen dioxide
    • Oxygen
  • Question of

    Deliberately injecting weak microbes into a healthy body and producing antibodies to fight against strong microbes is called _______.

    • Vaccination
    • Medication
    • Antibiotics
    • All of them
  • Question of

    Alcohol is produced with the help of _______.

    • yeast
    • sodium chloride
    • nitrogen
    • carbon dioxide
  • Question of

    Which gas is the major pollutant of air?

    • Carbon monoxide
    • Nitrogen
    • Oxygen
    • Propane
  • Question of

    The increase in concentration of which gas is not responsible for Global Warming?

    • Nitrogen
    • Carbon dioxide
    • Sulphur dioxide
    • Methane
  • Question of

    What radiations are absorbed by CO2?

    • Infrared radiations
    • Ultrared radiations
    • Ultraviolet radiations
    • None of these
  • Question of

    Which element is present in the exhaust of automobiles?

    • Lead
    • Magnesium
    • Chromium
    • Calcium
  • Question of

    The solid or liquid particles dispersed in the air are called ________.

    • aerosols
    • hydrocarbons
    • acids
    • oxides
  • Question of

    The type of pollution which is likely to affect Taj Mahal in Agra to a greater extent is _______.

    • air pollution
    • soil pollution
    • water pollution
    • noise pollution
  • Question of

    Which of the following contents is most harmful to aquatic animals?

    • Heavy metal ions
    • Sodium ions
    • Potassium ions
    • Chloride ions
  • Question of

    Which of the following is a non-biodegradable pollutant?

    • DDT
    • Sulphur dioxide
    • Nitrogen oxide
    • Hydrogen oxide
  • Question of

    The number of modes by which animals reproduce are _______.

    • two
    • three
    • four
    • none of them
  • Question of

    Binary fission is observed in ________.

    • amoeba
    • hydra
    • yeast
    • human being
  • Question of

    When a given force is applied on larger area of contact the pressure exerted by it:

    • decreases
    • increases
    • does not change
    • none of them
  • Question of

    The pressure exerted by a liquid:

    • increases with depth
    • does not change with depth
    • decreases with depth
    • is different in different directions at he same depth
  • Question of

    Liquids exert pressure on the walls of the container:

    • Yes
    • No
    • Can’t say
    • None of these
  • Question of

    The instrument used of measure atmospheric pressure is:

    • mercury barometer
    • manometer
    • pressure meter
    • none of these
  • Question of

    When bicycle tube is punctured than:

    • air escapes slowly
    • air escapes very fast
    • it bursts
    • none of these
  • Question of

    Which of the following does not belong to the family of solar system?

    • Galaxy
    • Meteors
    • Planet
    • Comet
  • Question of

    Which unit is used to measure astronomical distances?

    • Light year
    • Leap year
    • Century
    • Sound year
  • Question of

    Shooting stars are called _______.

    • meteors
    • galaxies
    • asteroids
    • andromeda
  • Question of

    The process of transfer of charges from a charged object to the earth is called _______.

    • earthing
    • lightning
    • oscillation motion
    • electron movement
  • Question of

    Which is not a natural phenomena?

    • Earthing
    • Lightning
    • Earthquakes
    • Cyclones
  • Question of

    Where is the lightning rod attached to protect the building from lightning?

    • On the top of the building
    • On the bottom of the building
    • In the middle of the building
    • All of these
  • Question of

    ‘Goiter’ is a disease of:

    • thyroid gland
    • pancreas
    • adrenal gland
    • none of these
  • Question of

    Which of the following Is incorrect:

    • The voice box of girls is larger than that of boys
    • Girls have high pitched voice
    • Boys have a deep voice
    • None of these
  • Question of

    The changes which occur at adolescence are controlled by:

    • hormones
    • balanced diet
    • enzymes
    • none of these

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