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CHEMISTRY SS1 LESSON NOTE • INTRODUCTION TO CHEMISTRY CONTENT • WHAT IS CHEMISTRY? • Chemistry is one of the branches of pure science which deals with the composition, properties and uses of matter. It also probes the principles governing the changes that matter undergoes SCIENTIFIC METHOD Observation - problem/questioning - hypothesis Experimentation - further experimentation - law/theory/principle APPLICATION OF CHEMISTRY • FOOD:- Chemistry is used to increase food production by the use of fertilizer and insecticides, preservation and addition of essential nutrients to improve the quality of food • CLOTHING:- Textile fibres are produced by chemical research • HOUSING:- Cement, concretes, bricks, tiles and roofing sheets are produced by chemical processes • MEDICINE:- Chemical research is employed in the production of drugs and medicines • TRANSPORTATION:-Fuels and structural materials like alloys which are light, strong and heat resistance are produced by chemical processes ADVERSE EFFECTS OF CHEMISTRY • Environmental pollution • Drug abuse 1. 2. 3. 4. 5. 6. CAREERS AVAILABLE IN CHEMISTRY Teaching/Lecturing services Health services Food Technologists Petroleum and petrochemical industries Agriculture Forestry ASSIGNMENT:- Describe briefly how can chemistry affect the society adversely