Class/Course - Class VIII

Subject - Science

Total Number of Question/s - 3367


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  • 1. Crop Production and Management - Quiz

    1. The crop that requires more irrigation is :
    a) wheat
    b) rice
    c) maize
    d) jower

    2. Ploughing helps in :
    a) loosening of soil
    b) distribution of nutrients
    c) removal of microorganisms
    d) removal of pests

  • 2. Microorganisms: Friend and Foe - Quiz

    1. If a bell jar is immediately placed over a slice of moist bread and observed after a few days:
    a) Fungal mycelium is developed
    b) The bread swells
    c) Fungus does not develop
    d) Water drops accumulate as the bread respires

    2. Spraying of oil on stagnant water controls malaria because the:
    a) Oil kills malarial parasites in mosquitoes
    b) Mosquito larvae cannot breathe
    c) Water becomes too dirty for mosquitoes
    d) None of the above

  • 3. Synthetic Fibers and Plastics - Quiz

    1. Wool is obtained from _________of sheep .
    a) Skin
    b) Toes
    c) Fleece
    d) All of the above

    2. Coating of melamone plastic is used as :
    a) good conductor of heat
    b) strong and durable
    c) fire proof plastic
    d) plastic cook ware

  • 4. Materials: Metals and Non-Metals - Quiz

    1. Corrosion of metals can be prevented when contact between metal and _________is cut off .
    a) nitrogen
    b) hydrogen
    c) oxygen
    d) carbon

    2. The chemical formula of bauxite is:
    a) Al2O3, 2H2O
    b) CaFeS2
    c) MgCO3
    d) PbCO3

  • 5. Coal and Petroleum - Quiz

    1. During fractional disstillation the crude petroleum is heated to a temperature of a about :
    a) 6000C
    b) 4000C - 5000C
    c) 2000C
    d) 1000C

    2. Water gas is a mixture of:
    a) CO and H2
    b) H2 and N2
    c) Hand CO2
    d) COand N2

  • 6. Combustion and Flame - Quiz

    1. Arrange the following fuels in increasing order of their calorific value:
    1. Petrol
    2. Diesel
    3. Kerosene
    4. Natural gas
    a) 1,2,3,4
    b) 2,3,4,1
    c) 2,1,3,4
    d) 2,3,1,4

    2. If foam type fir extinguisher, which of the following products are formed?
    Al2(SO4)3 +6NaHCO3 -> ?

    a) 2Al(OH)3 +6H2O +3NaSO4
    b) 2Al(OH)3 +6O2 +3NaSO4
    c) 2Al(OH)3+6SO2+3NaSO4
    d) 2Al(OH)3+6CO2 +3NaSO4

  • 7. Conservation of Plants and Animals - Quiz

    1. Which of the following human activities may cause the extinction of species ?
    a) Using animal parts as traditional medicines
    b) Encouraging game hunting as a sport
    c) Using animal parts as decorative piece
    d) All of these

    2. Species which are going to enter the endangered category are called:
    a) Endangered species
    b) Vulnerable species
    c) Rare species
    d) Fossil species

  • 8. Cell — Structure and Functions - Quiz

    1. Saclike structures which help in the synthesis and storage of many substance is :
    a) Endoplasmic reticulum
    b) nucleus
    c) mitochondria
    d) Glogi bodies

    2. Which of the following organelle acts as digestive system within the cell?
    a) Glogi bodies
    b) Centrosomes
    c) Lysosomes
    d) Mitochondria

  • 9. Reproduction in Animals - Quiz

    1. Which of the following structures has an internal wall lined with fingerlike projections ?
    a) Ovary
    b) Vagina
    c) Fallopian tube
    d) Uterus

    2. Which of the following organisms reproduces asexually?
    a) Protozoa
    b) Frog
    c) Lizard
    d) Housefly

  • 10. Reaching the Age of Adolescence - Quiz

    1. When menstruation stops, the uteine lining is very ,thin. The repair of the uterine lining takes about _______ days
    a) 7
    b) 13
    c) 9
    d) 11

    2. Which of the following does not take place during the final stage of the menstrual cycle?
    (I) Further thickening of the uterine lining
    (II) Repair and growth of the uterine lining
    (III) Ovulation
    a) I and II only
    b) I and III only
    c) II and III only
    d) I, II and III

  • 11. Force and Pressure - Quiz

    1. Which of the following is NOT a type of force?
    a) Chemical
    b) Muscular
    c) Magnetic
    d) Pulling a bucket of water from a well

    2. A mountain climber experiences a nose bleed due to:
    a) Increase in atm pressure
    b) Decrease in atm pressure
    c) More gravitational pull
    d) Effect of high altitude

  • 12. Friction - Quiz

    1. Which of the following activity would not be possible in the absence of friction ?
    a) holding a glass
    b) writing on a paper
    c) sitting on a chair
    d) all of the above

    2. Powder is used in carrom board for:
    a) Decreasing friction
    b) Increasing friction
    c) Decoration
    d) Fragrance

  • 13. Sound - Quiz

    1. In humans, the sound is produced by:
    a) Wind pipe
    b) Larynx
    c) Vocal cords
    d) Lungs

    2. Pitch of sound depends upon:
    a) Amplitude
    b) Frequency
    c) Loudness
    d) Distance of source

  • 14. Chemical Effects of Electric Current - Quiz

    1. Which copper rod donates electrons to hydrogen ions , it gains ___________charge .
    a) positive
    b) negative
    c) no charge
    d) cant say

    2. In electrolytic solutions, carrier of charge is:
    a) Ion
    b) Proton
    c) Electron
    d) Neutron

  • 15. Some Natural Phenomena - Quiz

    1. Magnitude of earthquake is measured by:
    a) Richter scale
    b) Electroscopes
    c) Seismograph
    d) Coulomb

    2. quake at two places A and B were measured by a seismograph which recorded the magnitude as 2 and 4 . The magnitude of tremors and its destructive energy at A and B can be compared as under :
    a) Tremor at B are two times that at place A
    b) Tremor at B are four times that at place A
    c) Tremor at B are 100 times that at place A
    d) Tremor at B are 1000 times that at place A

  • 16. Light - Quiz

    1. Internal reflection of light is prevented in human eye by:
    a) Choroid
    b) Pupil
    c) Iris
    d) Blind spot

    2. Nocturnal animals like owl & bat have :
    a) large cornea
    b) large pupil
    c) retina with large number of rods
    d) all of the above

  • 17. Stars and the Solar System - Quiz

    1. The only moon in the solar system with active volcanoes is :
    a) Moon
    b) Io
    c) Titan
    d) Ganymede

    2. The first Indian satellite is:
    a) Aryabhatta
    b) INSAT
    c) Bhaskara
    d) APPLE

  • 18. Pollution of Air and Water - Quiz

    1. The leaching of chemical fertilizers into rivers and ponds cause:
    a) Air pollution
    b) The rapid growth of algae
    c) An increase in the oxygen concentration of the water
    d) An increase in number of aquatic organism?

    2. Carbon particles and smoke from factories:
    a) Decrease the rate of photosynthesis in plants
    b) Increase the rate of respiration in plants
    c) Increase the absorption of carbon dioxide by plants
    d) Decrease the rate of transpiration in plants