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  1. In an experiment, 3 cages each with the same number of live catfish were lowered separately into 3 streams P, Q and R. The catfish were not able to escape from these cages. The number of live catfish in the cages was counted over 6 days. The graph below shows the results:

    Based on the information given on the graph, indicate whether each of the following statements is 'True', 'Not True' or 'Not possible to tell'.

    Put a tick () in the correct box.



    Not True

    Not possible

    to tell

    (a) Stream R was badly polluted by oil spill. space space space

    All the catfish in Stream R died due to diseases.

    space space space
    (c) All the catfish in Stream Q died on the 6th day. space space space
    (d) There were more live catfish in Stream P than the other two streams after the 5th day. space space space

  2. Your answer:

  3. Complete the table by classifying the following parts into the correct systems.
    Blood vessels Gullet Heart
    Nose Small intestine Lungs
    Mouth Stomach Windpipe

    Digestive System

    Circulatory System

    Respiratory System

  4. Your answer:

  5. After the eggs of the chicken are laid, the hen usually sits on them to provide _______________ for the eggs. The eggs will hatch after ____________ days.

  6. Your answer:

  7. 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?

  8. Your answer:

  9. Fill in the missing stage in the life cycle of a chicken.

  10. Your answer:

  11. The diagram below shows a balsam plant.
    (a) Label the plant parts by writing the names in the boxes.
    (b) Part A is important to the plant because it contains _________________ which is able to trap the energy of the sun's light. In this way, part A can make _____________________ for the plant.

  12. Your answer:

  13. Mrs Lee tied a piece of string tightly round the stem of a plant, about halfway down from the top of the plant. She put the plant near an open window and water the plant daily. 1 week later, she observed that some leaves had turned yellow.

    a) On which part of the plants would the leaves be more likely to turn yellow?
    b) Explain Mrs Lee's observation in (a).

  14. Your answer:

  15. Look at the classification table below.

    Livings things


    Plants Group Q Group R



    Jew's ear






    Give a suitable heading for Group Q and Group R.

    Group Q: ____________________________

    Group R: ____________________________

  16. Your answer:

  17. The diagram below describes an animal.

    a) Which group of animals does Animals X belong to?
    b) Name Animal X.
    c) Name ONE other animal which belongs to the same group as Animal X but does not lay eggs.
    d) How does the animal you named in (c) reproduce?

  18. Your answer:

  19. The diagram below shows the water cycle.

    (a) Name the processes Y and Z.
    Y: _________________ Z : _________________
    (b) In which processes, X, Y, Z are there changes of state?

  20. Your answer:

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