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 METHODObservation - problem/questioning- hypothesisExperimentation - 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 CHEMISTRY1. Teaching/Lecturing services2. Health services3. Food Technologists4. Petroleum and petrochemical industries5. Agriculture6. Forestry

ASSIGNMENT:- Describe briefly how can chemistry affect the society adversely