What is the purpose of using aluminum foil?

Aluminum foil is used for a multitude of purposes due to its properties such as being lightweight, heat resistant, and reflective. It is commonly used in cooking and baking to wrap or cover food, ensuring even heat distribution and preventing food from sticking. It's also used for insulation, food storage, and as a barrier to keep food fresh. In addition, aluminum foil is utilized in arts and crafts, and in industrial applications such as heat shielding and chemical processing due to its malleability and reflective nature.