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Content Topics Key Points Core Extension Suggested activities Diseases of the respiratory system easily triggered by polluted air e.g. asthma and bronchitis
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The suggested activities in this Unit should facilitate the development of the following competencies to the students’ fullest capability: 1.interpreting and explaining observations 2.identifying cause-effect relations 3.making generalisations 4.survival skills in fire accidents 5.applying laboratory techniques in the tests for gases, water and starch 6.controlling variables to ensure the validity of experiments 7.devising and carrying out fair tests 8.distinguishing between valid and invalid conclusions 9.combining findings of different experiments in drawing conclusions 10.using models to explain phenomena 11.suitably organising relevant information extracted from different sources 12.managing natural resources wisely and responsibly