PSLE Exam - Simulation Test Engine

NSP-111-240722-151903

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Minmin likes to place potted plants in her bedroom. In the daytime, she places her potted plants near the window so that the plants can photosynthesise. In the night, she places them on her writing desk in her room. Minmin's mother says that it is not healthy to have plants in the room at night.
a) Do you think Minmin's mother is right?
Ans:_______________
b) Explain your answer in (a).
Ans:_______________

(a)Yes. (b)As the plants will take on oxygen.

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Jane placed 4 lizards in separate bottles, each having different living conditions.

a) In which of the bottles (A, B, C or D) would the lizard most likely be alive after 7 days?
b) Explain your answer in (a).

a) C. b)As there is food and water for it ti survive and it also has air.

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Study the shapes as shown below.

(a) Write down one property that you can use to classify the shapes.
(b) Using the property stated above or otherwise, complete the classification table below by filling the group headings in (i) and (ii) and the letters representing the shapes in (iii) and (iv).

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The statemetns A-G describe the steps that lead to the formation of rain. They are not in the correct order.

A. Water evaporates.
B. Condensation happens.
C. Warm air rises and then cools.
D. Droplets of water form clouds.
E. Heat energy from the Sun warms the Earth.
F. When the water droplets become bigger, rain falls.
G. Water collects in rivers, lakes and reservoirs.
Arrange the statements in the correct order in the diagram below.

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ing respiration a)________________ is taken in and b)______________ is given out.

oxygen carbon dioxide

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A group of pupils were having a toy car competition. Materials used were recycled materials and 2 rubber bands. No motors or engines were used.
ai) Name the source of energy for the toy cars to move.
Ans:_____________
aii) In order to have a fair competition, which 2 of the following variables must be kept constant? Put only 2 ticks in the table below.

Tick

Starting point of the toy car

Ending point of the toy car

Starting time of the toy car

Number of rubber bands used

b) The table below shows the distance traveled by a toy car when the wheels of the car had made a number of turns.

Number of turns of the wheels

Distance traveled (in m)

5 turns

1.2 m

10 turns

2.5 m

15 turns

3.3 m

Based on the results above, what is the relationship between the number of turns of the wheels and the distance traveled by the toy car?
Ans:_____________________

ai)Sun b)The more the number of turns of wheels , the more the distance travelled.

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Henry hung four boxes, W, X, Y and Z on a lever balance and compared their masses. He made the following observations.

a. Box _____________ has the smallest mass
b. Box _____________ has the biggest mass

a)w b)y

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Compare the life cycle of a hen and a frog.

(a) State one similarity between the two life cycles above.
(b) State one difference between two life cycles above

a)They have three stages. b)The adult does not look like the young for the Frog.

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When a fruit is cut open, seeds can usually be seen.
(a) Why are seeds important in the development of a plant? To answer parts (b), (c), (d) and (e), study the diagrams below.

(b) State ONE similarity between the papaya and the kiwi fruit.
(c) State ONE difference between the papaya and the kiwi fruit.
(d) Name another fruit which is similar to the papaya.
(e) State ONE characteristic of the fruit named in (d) which makes it similar to the papaya.

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Fill in each blank with the correct word.
The amount of _______ in the air is called humidity. When air is dry, humidity is _______. This makes it easier for water to _______ and later _______ to form rain.

water vapour low condense liquid

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