Chemistry is the branch of science concerned with the identification of the substances of which matter is composed; the study of their properties and the way in which they interact, combine and change; and the use of these processes to form new substances. Chemists believe that chemistry is the study of matter and the study of change. Chemistry is a part of our daily lives, dealing with the food we eat, the air we breathe, and almost everything we see or touch. The reason chemistry is so important is because it forms the basis of life, such as humans and other living organisms. Chemistry has been used for thousands of years. The first chemical reaction used in a controlled way was fire: burning wood, boiling water and lighting. . Early societies used fire in their early days for cooking and keeping habitats lit for more advanced activities like pottery making, brick making, and metal smelting. Soon, advances were made to include glass making and metal purification. At one time, alchemists were trying to turn lead into gold and trying to find the elixir of life through different chemicals....