SS1 CHEMISTRY LESSON NOTE FIRST TERM
Here’s a First Term SS1 Chemistry Note covering the key topics typically taught in Senior Secondary School 1. SS1 Chemistry – First Term Notes 1. Introduction to Chemistry Definition of Chemistry Chemistry is the scientific study of matter, its composition, structure, properties, and the changes it undergoes. Branches of Chemistry 1. Organic Chemistry – Study of carbon-containing compounds. 2. Inorganic Chemistry – Study of non-carbon elements and compounds. 3. Physical Chemistry – Study of how substances interact physically. 4. Analytical Chemistry – Study of the composition of substances. 5. Biochemistry – Study of chemical processes in living organisms. Importance of Chemistry Used in medicine, agriculture, food processing, industries, and environmental protection. 2. Nature of Matter States of Matter Solid – Fixed shape and volume. Liquid – Fixed volume but no fixed shape. Gas – No fixed shape or volume. Physical and Chemical Changes Physical Change – No new substance is forme...