Ice cubes are small, solid blocks of frozen water, typically made by freezing water in a tray or mold. They are commonly used to cool beverages, such as soda or cocktails, and can also be used in food preparation or preservation. Ice cubes come in various shapes and sizes, depending on the mold used. When ice cubes are added to a drink, they absorb heat from the liquid, causing the drink to cool down. As they melt, they turn back into water, which can dilute the beverage. Ice cubes are a popular addition to summer drinks and are often found in bars and restaurants.