Latih Tubi Sc Year 5 ( Sec -B Living things)

1. Section B
Instructions : Write your answers in the space provided.
1. The diagram below shows an investigation carried out by Aimi Nadia . She fills 2
teaspoons of dried yeast, 1 teaspoon of sugar and 100 ml of water into a test tube. A
balloon is attached to the mouth of the test tube.
The table below shows the results of the investigation.
Time/ minutes 1 2 3 4 5
Circumference 6 8 10 12 14
of the balloon
/cm
Table 1
a) What is the aim of this investigation?
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b) State one observation based on the result in the table above.
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c) Give an inference based on your answer in 1(a)
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d) What is the function of sugar in the test tube?
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e) What happens to the circumference of the balloon when the time of the investigation
increases?
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2. 2. The table below shows the result of a fair test done by a pupil to observe the effect of
yeast on dough of bread after 4 hours.
Amount of yeast Size of dough (cubic
(gram) centimetre)
5 50
10 60
15 70
20 80
a. What do you want to find out from this fair test?
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b. In this fair test,
i) What do you keep the same?
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ii) What do you change?
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iii) What do you measure (observe)?
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c. What can you conclude from this investigation?
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3. 3. The bar chart below shows the number of eggs produced by four types of animals
P,Q,R and S.
a) State one observation on the number of eggs produced.
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b) How do animals Q and S ensure the survival of their species?
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( 1 mark)
c) Predict animal P
P: .................................................................................................
( 1 mark)
d) Explain how the following animals take care of their young.
i) Female tilapia : ...................................................................................................
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ii) Kangaroo : .................................................................................................
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( 2 marks)

4. 4. The table below shows the number of pupils of Sekolah Kebangsaan Pokok Sena
having disease X from day 1 until day 5.
Day Number of pupils having disease X
1 6
2 10
3 14
4 18
5 22
a. What is the pattern of the number of pupils having disease X from day 1 until day 5?
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b. Give your inference from your observation in question ( a ).
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c. State,
i) what to change:
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[ 1 mark ]
ii) what to observe:
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[ 1 mark ]
d. Predict the number of pupils who have disease X on day 6.
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[ 1 mark ]