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Phase Change Revision _ Science 8

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    Review what students learnt in Phase change topic
  •   Study   Slideshow
  • Which transformation process occurs in drying of wet clothes?
    condensation
    evaporation
    melting
    freezing
  •  15
  • Which transformation process changes the state of a matter from that of a liquid to a solid?
    freezing
    melting
    sublimation
    condensation
  •  15
  • What process involves the change of state from solid to gas without passing the liquid state?
    melting
    sublimation
    evaporation
    freezing
  •  15
  • What phase change is observed in the formation of clouds in the atmosphere?
    melting
    evaporation
    freezing
    condensation
  •  15
  • Choose the correct answer
    B
    D
    C
    A
  •  15
  • Choose the correct answer
    B
    D
    A
    C
  •  15
  • Which of the given situations demonstrate a phase change?
    drying of fishes
    chopping of woods
    cutting of nails
    growing of plants
  •  15
  • What transformation takes place when dry ice (solid carbon dioxide) changes from solid to gas?
    boiling
    sublimation
    melting
    freezing
  •  15
  • Choose the correct answer
    C
    B
    A
    D
  •  15
  • Choose the correct answer
    A
    C
    B
    D
  •  15
  • What phase change occurs when water droplets form outside the glass of cold water?
    sublimation
    melting
    evaporation
    condensation
  •  15
  • Which of the following phase changes needs an increase of both temperature and kinetic energy?
    liquid to solid
    gas to liquid
    solid to liquid
    gas to solid
  •  15
  • What happens to the arrangement of particles in ice cream once its temperature increases?
    The particles are freezing.
    The particles are getting heavier.
    The particles are getting farther.
    The particles are coming closer.
  •  15
  • What state of matter is the lighted candle when it melts?
    liquid
  •  15
  • What is your observation on the wet clothes before exposure to the heat of the sun? How about during the time of sun exposure? Finally, after it was exposed to the sun?
    Great job
  •  25
  • Toilet deodorizer (Figure 3) is placed in the comfort room.What causes the change in its size after several days?
    Solid - Gas (Sublimation)
  •  25