Grade 9 first science lesson for term 1 for Sinhala medium students in Sri Lanka. This lesson contains explanations of micro organisms and their uses and effects.


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Learn O/L Science in Sinhala medium with this step by step video. Start it simple and easily. Lessons are planned , designed and carried out by the government school teacher, Anuradhika Lakmali. (Dip in Ed. BSc.)

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