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7  (70%) 3 Min 46 Sec

  1.  Sally puts 4 substances into round, plastic containers. Which of the following does not take the shape of its container?

    A: Oil
    B: Sand
    C: Marbles
    D: Chicken soup

    Your answer=C, Correct answer= C,

  2.  A group of scientists discovered that certain stretches of the river were polluted with toxic chemicals. Which factory(ies) is/are most likely responsible for the water pollution?

    Your answer=B, Correct answer= B,

  3.  Shawn lighted a candle in a basin of water and covered it with a bell jar as shown in the diagram below.

    After a short moment, the candle flame flickered and went out.
    What caused the candle flame to go out?

    Your answer=B, Correct answer= B,

  4.  Jim added some hot water into a beaker of ice.
    Which of the following statement is correct?
    A: The ice gains heat and melts faster.
    B: The hot water loses heat and melts the ice.
    C: The ice changes from solid state to liquid state.

    Your answer=B, Correct answer= D,

  5.  A girl observed that a fruit was thorny and had an unpleasant smell. Name all the sense that can help her to male these observations.
    A: Sense of smell
    B: Sense of sight
    C: Sense of taste
    D: Sense of touch

    Your answer=C, Correct answer= C,

  6.  Which of the following are some causes of water pollution?
    A: Oil spills
    B: Deforestation
    C: Rubbish thrown from a ship
    D: A gardener uses insecticide near a pond

    Your answer=D, Correct answer= D,

  7.  What was the room temperature?

    Your answer=B, Correct answer= C,

  8.  Selina did an experiment to find out the properties of solids X, Y and Z. The result of her experiment is shown in the table below.
    Solids
    X
    Y
    Z
    Does it become flat when hit?
    No
    Yes
    No
    Does it break into pieces when dropped?
    Yes
    No
    No
    Is it wrapped?
    Yes
    Yes
    Yes

    In what ways are solids X and Z similar?
    A: They both do not become flat when hit.
    B: They both break into pieces when dropped.
    C: They both are waterproof.

    Your answer=A, Correct answer= C,

  9.  The table below shows the number of seedlings planted in a plot of land over a period of 2 weeks.
    Days
    Number of seedlings
    1
    80
    6
    63
    10
    41
    14
    28

    What could have caused the changes in the number of seedlings over the 2 weeks?
    A: A drop in the supply of water to these seedlings.
    B: A decrease in the number of animals feeding on the seedlings.
    C: Regular rainfall resulting in the plants getting enough water.
    D: Lack of nutrients in the soil.

    Your answer=B, Correct answer= B,

  10.  Mary poured some icy cold soft drink in a jar, covered it with a metal lid and placed it on a table with a thin glass top as shown below. At which of the following parts would she observe tiny water droplets after 5 minutes?

    Your answer=C, Correct answer= C,


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