C1.3 CORE NATURAL SCIENCE Part I It is envisaged that most of the content will be transacted using the discovery approach, through simple observations and experiments, followed by discussion. Wherever necessary, additional information may be supplied by the teacher at the end of each activity. Unit 1 Classification, property, concept, relation, law. Unit 2 Measurement of length, mass and time; density; pressure; work and energy;weight; falling of bodies; gravitation; heat and temperature; states of matter;properties of magnets; electricity ; refraction and dispersion. Unit 3 Physical and chemical changes; separation of mixtures; atoms and molecules;metals and non-metals; oxides; acids; bases and salts; air and combustion; water-hard and soft. Unit 4 Living and non-living; classification of living world; germination of seeds; life processes e.g. respiration, digestion, reproduction, photosynthesis, transporta-tion, phenomena, interdependence of plants...
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