Class/Course - Class VIII

Subject - Science

Total Number of Question/s - 3367

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  • 1. Crop Production and Management - Quiz

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

    2. The practice which does NOT improve the fertility of soil from the following is:
    a) Keeping the mad fallow
    b) Practicing crop rotation
    c) Practicing multiple cropping
    d) Practicing monocropping

  • 2. Microorganisms: Friend and Foe - Quiz

    1. Bacteria are used in the production of :
    I alcohol
    II cheese
    III yoghurt
    a) I only
    b) II and III only
    c) I and III only
    d) I, II and III

    2. The transmission and infection of Entamoeba histolytica is through:
    a) Mosquito bite
    b) Birds droppings
    c) Sweat
    d) Contaminated food and water

  • 3. Synthetic Fibers and Plastics - Quiz

    1. The process of obtaining wool is:
    a) Shearing, scouring, sorting and dyeing
    b) Shearing, sorting, scouring and dyeing
    c) Scouring, sorting, shearing and dyeing
    d) Sorting, scouring, shearing and dyeing

    2. The two main processes of making fabrics are:
    a) Ginning and weaving
    b) Weaving and spinning
    c) Weaving and knitting
    d) None of these

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

    1. Rusting of iron requires the presence of:
    a) air and water
    b) CO2 and water
    c) O2 and H2
    d) O2 and N2

    2. Rocksalt is:
    a) KCl
    b) CaCl2
    c) MgCl2
    d) NaCl

  • 5. Coal and Petroleum - Quiz

    1. Which of the following is most harmful for human body?
    a) CO
    b) CO2
    c) Oxides of nitrogen
    d) Lead compounds

    2. Which fraction of petroleum has highest boiling point ?
    a) kerosene
    b) Gasoline
    c) Ether
    d) Gas oil

  • 6. Combustion and Flame - Quiz

    1. Which of the following has the highest calorific value?
    a) Natural gas
    b) Petrol
    c) Coke
    d) Kerosene

    2. The type of combustion in which heat , light ans sound are produced is :
    a) rapid
    b) explosive
    c) spontaneous
    d) none of these

  • 7. Conservation of Plants and Animals - Quiz

    1. Species restricted to certain geographic regions are called:
    a) Endangered species
    b) Rare species
    c) Vulnerable species
    d) Fossil species

    2. Under Man and biosphere programme (MAB), what is a core zone?
    a) A zone where human activity is not permitted
    b) A zone where human activity is permitted
    c) A zone where controlled hunting is permitted
    d) A zone where slash and burn cultivation is not permitted

  • 8. Cell — Structure and Functions - Quiz

    1. Which of the following is a storage organelle ?
    a) Mitochondria
    b) Leucoplast
    c) Chloroplast
    d) Ribosome

    2. Which type of tissue support , defend and store food in animals ?
    a) Epithelial
    b) Connective
    c) Nervous
    d) Muscular

  • 9. Reproduction in Animals - Quiz

    1. Implantation is:
    a) attchement of the blastocyst to the uterine wall
    b) release of ovum from the follicle
    c) development of an embry without fertilisation
    d) formation of ova from germ cells

    2. What part within the uterus prevents the mixing of the blood of the foetus what that of the mother?
    a) Placenta
    b) Umbilical cord
    c) Uterus wall
    d) Water sac

  • 10. Reaching the Age of Adolescence - Quiz

    1. Which sequence is correct about the menstrual cycle based on the information given below?
    W- The ovum dies within 24 hours after ovulation
    X- The uterus wall thickness with blood vessels
    Y-The uterus wall breaks down
    Z - The ovary discharges an ovum
    a) W,Y,X,Z
    b) X,Z,W,Y
    c) Y,W,Z,X
    d) Z,X,Y,W

    2. A person goes through the following stages of growth. Which is the correct sequence?
    2. Zygote
    3. Embryo
    4. Baby
    5. Adult
    6. Adolescent
    a) 2,3,1,4,7,6,5
    b) 2,1,3,4,7,5,6
    c) 3,2,1,4,6,7,5
    d) 1,3,2,4,7,6,5

  • 11. Force and Pressure - Quiz

    1. A car accelerates on a horizontal road due to the force exerted by :
    a) the engine of the ear
    b) the driver of the car
    c) the earth
    d) the road

    2. In football , a goal keeper stops a ball . This is due to
    a) friction between the ball and hand of goal keeper
    b) decrease in speed of ball due to air resistance
    c) application of force by goal keeper
    d) all of the above

  • 12. Friction - Quiz

    1. Which of the following is used to reduce friction in a rotating machine?
    a) Ball bearing
    b) Wheels
    c) Roolers
    d) Polishing

    2. In which of the following cases more friction desirable ?
    a) movement of piston in a cyclinder
    b) braking of a vehicle
    c) running on a track
    d) all of the above

  • 13. Sound - Quiz

    1. A to and fro motion by an object is also called__________
    a) Periodic motion
    b) Cyclic motion
    c) Oscillatory motion
    d) None of these

    2. In which of three media ; air, water and steel, does sound travel the fastest?
    a) Air
    b) Water
    c) Steel
    d) non of these

  • 14. Chemical Effects of Electric Current - Quiz

    1. When an electron moves from negative electrode to positive electrode :
    a) negative charge moves from negative electrode to positive electrode
    b) positive charge moves from positive electrode to negative electrode
    c) no charge flows from either electrode to other electrode
    d) both A and B

    2. Which of the following is an insulator ?
    a) Wood
    b) Iron
    c) Carbon
    d) Silver

  • 15. Some Natural Phenomena - Quiz

    1. Which of the following is the best thing to do during heavy lightning?
    a) Lying on the ground in an open place
    b) Going into the nearest water body
    c) Standing under a tall tree
    d) Staying indoors away from metallic doors or windows

    2. Which of the following is the first sign of an approaching cyclone?
    a) Rains accompanied by lightning
    b) High temperature and humidity
    c) Powerful water wave
    d) Cool breeze and rains

  • 16. Light - Quiz

    1. When the angle between two plane mirrors is 60, how many multiple images will be formed by the mirrors?
    a) 5
    b) 6
    c) 7
    d) 8

    2. The Persistence of the eye is only for:
    a) 1/16th of a second
    b) 1/10th of a second
    c) 1/12th second
    d) 1/20th of a second

  • 17. Stars and the Solar System - Quiz

    1. Mercury is closer to sun than the Venus . But Venus is hotter than Mercury. Give reasons.
    a) Venus has no atmosphere and Mercury has a thick atmosphere which can retain the heat
    b) Mercury is mostly made up of sedimentary rocks while Venus contains igneous rocks
    c) Mercury being closer to the sun, sun absorbs the heat of the Mercury
    d) all the above

    2. Between 1979 and 1999, the farthest planet from the sun is:
    a) Jupiter
    b) Neptune
    c) Uranus
    d) Planet

  • 18. Pollution of Air and Water - Quiz

    1. Which method of water purification does NOT microorganisms ?
    a) Boiling
    b) Filtration
    c) Chlorination
    d) Distillation

    2. One of the causes of water pollution is that the farmers use excessive :
    a) manure and water
    b) fertilizers and pesticides
    c) fertilizers and seeds
    d) pesticides and seeds