PSLE Exam - Simulation Test Engine

NSP-111-150813-192053

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Arrange the statements by numbering them from 1 to 5 to show the growth of a soya bean seed.

1. The first shoot appears from the seed. 2. The root appears from the seed. 3. The plant starts to make its own food. 3. Flowers develop. 4. Fruits form from the flowers.

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After the eggs are laid, the hen usually sits on them to provide _____.

Warmth

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Study the setup below.

a) What change in state is taking place at point X?
b) What change in state is taking place at point Y?
c) There was 300ml of water in beaker A at first. After all the water was boiled away, only 280ml of water was collected in beaker B. Explain in your own words why this is so.

a) gaseous to liquid state. b) liquid to gaseous state. c) some of the steam rising from beaker A might have not condesed as it does not touch the cooler surface of the glass rod.

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The diagram below show how the objects O, P, Q and R balance one another.

(a) Arrange the objects A, B, C and D in ascending order of their masses.

(b) State the difference between the mass of a 3-cm wooden cube and a 3-cm iron cube.

a) R, O, P, Q b) The iron cube is heavier than the wooden cube.

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Allan hangs two similar balloons on the ends of an equal-armed lever as shown in the diagram below. Both balloons are inflated to the same size to ensure that the lever is balanced.

(A) What can Allan do to the setup above to show that air has mass?
(B) Draw the possible result in the space below.

a) Blow more air to either of the balloons. b) The balloon which has more air will go down.

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Study the life cycles of the 2 animals shown below.

Based on the diagram above,
a) Give one similarity between the 2 life cycles.
b) Give one difference between the 2 life cycles.

a) The two animals have 3 stages in their life cycle. b) The young of a chicken looks like its adult while the young of a frog does not resemble its adult.

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The graph below shows the changes in the pulse rate of a girl. She ran around a track for a few minutes and stopped after some time.

a) At which point did she start running?
Ans:______________
b) What happened to her pulse rate when she was exercising?
Ans:_______________
c) Why do you think this happened?
Ans:_______________

a) Point B. b) Her pulse rate increases. c) When she exercises, she needs energy. So, the heart in her body has to pump more blood rich in oxygen and digested food for her energy.

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Cindy boiled a flask of water. She then placed a metal tray above the flask as shown.

a) What would Cindy observe on the underside of the tray after a while?
b) Explain your answer in (a) above.

a) She would observe water droplets on the underside of the tray. b) The water in the concial flask evaporates to form water vapour due to the heat. Then, the water vapour touches the cooler surface of the metal tray to form water droplets.

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Some plants cannot stand upright because they have weak ________________. They creep on the ground or rely on other plants, walls and fences for _____________________.

Stem, support

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Look at the classification table below.

Livings things

Animals
Plants Group Q Group R

lion

rose

Jew's ear

bacteria

whale

Hibiscus

toadstool

yeast

Give a suitable heading for Group Q and Group R.

Group Q: ____________________________

Group R: ____________________________

Group Q: Fungi Group R: Micro organisms

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