Introduction to Chemistry

 Chemistry as a Pure Science  

Chemistry is one of the three main branches of pure science, alongside Physics and Biology.  

Definition:  

Chemistry is the branch of science that deals with the composition, properties, and structure of matter.  

Scientific Methodology  

Scientific methodology refers to the steps involved in identifying, observing, and analysing a problem.  

It provides a systematic approach to discovery and problem‑solving in science.  

Usefulness of Chemistry  

1. Housing  

   - Modern buildings, from small homes to skyscrapers, are designed to withstand weather conditions.  

   - This strength comes from materials such as concrete, cement, bricks, steel, and tiles,  all products of chemical knowledge.  

2. Medicine  

   - Diseases once considered lethal can now be treated effectively.  

   - Advances in chemical research have led to the development of life‑saving medicines.  

3. Transportation  

   - Traditional means of transport (carts, chariots) have been replaced by cars, trains, and aircraft.  

   - Chemistry made this possible through the production of fuels that power modern engines.  

4. Clothing  

   - Chemistry enabled the conversion of animal skin and wool into clothing suitable for different weather conditions.  

5. Food  

   - Knowledge of chemistry has led to the production of fertilisers and pesticides.  

   - These innovations increase food production, storage, and availability, ensuring global food security.