Page 23 - Genius PBD Science Year 4

SUMMATIVE PRACTICE 2

Objective Questions

1. Table 1 shows Rosli’s rate of breathing, A Sweat
which is X, during an activity and at B Urine
rest. C Water vapour
Table 1 D Carbon dioxide
Activity X Rehat 4. Why are excretion and defecation

Rate of Tinggi Rendah important to humans? PL 5
breathing A For energy
B To control the body temperature
What is the possible activity of X? PL 5 C To maintain health
A Reading D To respond to stimuli
B Watching television
C Playing football 5. Which activity causes high breathing
D Playing piano rate? PL 5

2. What is meant by excretion? PL 1 A C
A Removal of carbon dioxide from
the lungs
B Removal of urine from the kidneys
C Removal of waste products from B D
the body
D Removal of faeces from the body

3. Diagram 1 shows a situation
experienced by a girl.
6. What is the response of a pupil when
he finds a bee approaching him? PL 2
A He will scream when he is in
danger.
B He will move away to prevent
himself from being stung by the
bee.
C He will cry.
Diagram 1 D He will respond to stimuli.
What waste product is she going to
remove from her body? PL 2

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02 Unit 02 Genius PBD SCIENCE YR4.indd 16 19/10/2022 4:58 PM