Page 9 - Syok Praktis PBD (2023) Science TH4

Science Year 4 Practice 2 Humans

Sumative Practice 2

Objective Questions 2.2 Excretion and Defecation
3. Diagram 3 shows an excretory organ.
2.1 Human Breathing Process
1. Diagram 1 shows the organs involved in
breathing.

P Diagram 3
Q Which of the following is the waste product
of the organ?
A Carbon dioxide C Faeces
R
B Urine D Sweat
Diagram 1 4. Kamarul is experiencing difficulty

Which of the following shows the air defecating. Among the following, what is
passage for inhalation? the condition that he has?
A P, Q, R A Heart attack
B P, R, Q B COVID-19
C R, P, Q C Constipation
D R, Q, P D Malnutrition

2. Digram 2 shows a child blowing up a 2.3 Response towards Stimuli
balloon.
5. Diagram 4 shows a boy who feels hungry
K when he smells his mother’s cooking.

J

Diagram 2
Which of the following statements is true
about the air in J and K? Diagram 4
A J contains more carbon dioxide than Which of the following is true?
in K. A The smell of the food is a response.
B J contains more oxygen than K. B The smell of the food is a sensory
C J and K contain the same amount of organ.
oxygen. C The boy’s feeling of hunger is a
D J and K contain the same amount of response.
carbon dioxide.
D The boys feeling of hunger is a stimuli.

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