Page 5 - Syok Praktis PBD (2023) Science TH4

Science Year 4 Practice 2 Humans

2.1 Human Breathing Process Textbook Pages: 23 – 52

A The diagram below shows the organs involved in the breathing process. Label the organs.
Then, label the arrows correctly with “Inhalation” or “Exhalation”. PL 1

1.

2.

3.

B Fill in the blanks with the correct answer. PL 3 PL 4 HOTS Analysing

oxygen carbon dioxide moving upwards

moving downwards inhaling exhaling

1 2

(i) This student is . (i) This student is .

(ii) His chest is . (ii) His chest is .
(iii) The inhaled air contains more (iii) The exhaled air contains more
compared to compared to
exhaled air. inhaled air.

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Practice 2.indd 8 27/09/2022 1:53 PM