splogo NSP-111-221209-213134 timer

Please write your answers in the text box provided. Good luck!

  1. George set up an experiment using the apparatus shown below.

    After 3 days, he removed the plastic sheet. He recorded his observations on a piece of paper.

    Read the observations that he had written carefully and decide whether they are correct or wrong. Put a tick () for correct observation and a cross (X) for wrong observations in the boxes next to the statements.

    (a) There is lesser water in the trough bbb
    (b) There is water in the small container bbb
    (c) The water in the small container is salty bbb

  2. Your answer:

  3. Write down two reasons why animals need to move from one place to another.
    i) _____________
    ii) _____________

  4. Your answer:

  5. A seed needs water, ________________ and ___________________ before it can germinate.

  6. Your answer:

  7. 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.

  8. Your answer:

  9. Five different types of plants A, B, C, D and E, are found growing near and in a pond.

    Classify all the plants by writing its letters, A, B, C, D or E, in the boxes provided in the classification table below. You may write more than one letters in each box.

  10. Your answer:

  11. (a) Container A is filled with stones. What are the states of matter in Container A?
    (b) Container B is filled with water. When the contents of Container B are poured up to the brim of Container A, what are the states of matter in Container A now?

  12. Your answer:

  13. The tubes A and B are found in the stem of a plant. The arrows in the diagram represents the movement of substances in the plant.

    a) Tube A carries _________from the roots to the other parts of the plant.
    b) Tube B carries _________from the leaves to the other parts of the plant.
    c) Name the green substance found in the leaves which enables it to trap the energy of sunlight.

  14. Your answer:

  15. The places where bones meet are called joints. Look at the picture of the skeleton below.

    a) Identify a hinge-joint and draw an arrow to point to it. Label the joint 'P'.
    b) Identify a ball-and-socket joint and draw an arrow to point to it. Label the joint 'Q'.
    c) Xiaoqiang had his knees and elbows wrapped around with corrugated cardboard, as shown below. The he was asked to perform a few tasks like sitting on the floor and scratching his nose. He found great difficulty in performing those tasks. However, when the cardboards were removed, he found that he had no difficulty performing the same tasks.

    What does the experiment tell us about our joints.

  16. Your answer:

  17. Animal X has the following characteristics:
    Method of reproduction
    Lay eggs
    Gives birth to its young
    Type of outer covering
    Hair / Fur
    Number of legs/limbs

    (a) Which group of animals does animal X belong to?
    (b) Give an example of animal X.

  18. Your answer:

  19. a. Simon was experimenting with balloons and air. He pumped the same amount of air into three balloons shown below.

    What can he conclude from the experiment?
    b) Simon conducted another experiment using the setup below. Using a pin he pricked Balloon Y.

    What do you think Simon would observe? Draw and label your answer.

  20. Your answer:

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