Is Matter Around Us Pure?
This section explores the definition of purity in substances, distinguishing between mixtures and pure substances. Everyday items like milk, ghee, and salt may be perceived as pure due to their market labels. However, scientifically, these products are mixtures of various components—milk is composed of water, fat, proteins, etc. In contrast, pure substances consist of only one type of particle, like sodium chloride (table salt) or sugar, which maintain consistent properties. Mixtures, such as soft drinks and soil, can be separated into their components, but the components of a pure substance cannot be physically divided further. This critical distinction underscores the importance of understanding material composition, impacting fields like chemistry and environmental science.