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  1. John observed the heights of 2 objects over a period of 4 weeks and recorded his findings below.


    Height of Object A

    Height of Object B

    Week 1

    2 cm

    10 cm

    Week 2

    5 cm

    10 cm

    Week 3

    8 cm

    10 cm

    Week 4

    12 cm

    10 cm


    His friend, Alice, said that Object A is a living thing.

    His brother, Bob, said that Object B is a living thing.

    (a) Who is most likely to be correct?

    (b) From his observations, he can conclude that living things ____.


    2. Your answer:

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  2. Michael was playing with the items below and observed that only C and E were attracted to a magnet.

    a) From her observation, what can Meimei tell about A, B and D?
    b) Meimei says that if wrapped C and E in paper, the magnet would not be able to attract them. Do you agree with her? Why?

    3. Your answer:

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  3. Rani examined some materials and used the checklist below to record their sources. A (*) means that the materia came from that source.

    Materials

    Source X

    Source Y

    Source Z

    tin


    *


    gold


    *


    wool

    *



    rattan



    *

    bamboo



    *

    leather

    *



    iron

    ?

    ?

    ?

    nylon

    ?

    ?

    ?



    (a) What is the best heading for X (From animals, From plants or From the Ground)?

    (b) Under which heading (X, Y or Z) should a tick be placed for iron?

    (c) Can the checklist be used to record the source of nylon. Explain your answer.


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  4. Gina heated 500 ml of tap water at 27°C in a beaker for 15 minutes before it started to boil. She continued heating the water for another 5 minutes.
    Draw in the space below a graph to show the change in temperature of water with time.

    5. Your answer:

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  5. The diagram shows the human digestive system.

    (a) Name the parts labelled C and E. [2]

    C: ________________________________

    E: ________________________________

    (b) In which part of the digestive system (A, B, C, D, E or F) is the digestion of food completed?

    __________________________


    6. Your answer:

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  6. Look at the leaf shown below.

    Describe the leaf using the table below.
    Characteristics Description

    Shape of leaf

    		space

    Edge of leaf

    		space

    7. Your answer:

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  7. Two cups of cocoa are placed on a table. One of the cups contains very hot cocoa and the other contains cold cocoa. Suggest two ways of finding out which cup contains the hot cocoa.
    (a)________________
    (b)_________________

    8. Your answer:

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  8. Amelia took out two similar ice-cubes from the freezer and put them on two similar plates. Next, she crushed one of the ice-cubes. Then, using a stopwatch, she measured the time for each of the ice to melt completely into water.

    a. Which will melt faster, the ice-cube or the crushed ice?
    b. Explain your answer in (a).

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  9. Sample Text

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  10. Solids cannot be __________________ because they have a definite ____________ and volume.

    11. Your answer:

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