Oils are thick, slippery liquids that come from various sources, such as plants, animals, and minerals. They are commonly used in cooking, like olive oil for salad dressings, and in beauty products, such as coconut oil for skin care. Oils can add flavor to food and help keep our skin moisturized. There are many types of oils, each with unique properties. For example, essential oils are concentrated plant extracts used in aromatherapy, while motor oil is used to lubricate engines. Understanding the different types of oils can help us choose the right one for our needs, whether in the kitchen or for personal care.