CHEMISTRY SS1 LESSON NOTE

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Presentation transcript:

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 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