Paraffin is a soft, waxy substance derived from petroleum. It is commonly used in making candles, as it burns cleanly and evenly. Paraffin is also found in various household products, such as cosmetics and food packaging, due to its moisture-resistant properties. In addition to its uses in everyday items, paraffin is important in the medical field. It is often used in histology to preserve biological samples for examination under a microscope. This helps scientists and doctors study tissues and cells, contributing to advancements in medical research and diagnostics.