Transcript Chemistry lesson note

CHEMISTRY SS1 LESSON NOTE
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INTRODUCTION TO CHEMISTRY
CONTENT
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WHAT IS CHEMISTRY?
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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
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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