ELI5: Explain Like I'm 5

Ice Cube

Ice cube is frozen water that turns from a liquid to a solid when it gets cold enough. When water gets really cold, the tiny particles that make it up all stick together and form a solid block. Ice cubes are small blocks of ice that are often used to cool drinks or keep food cold. They look like little rectangles or cubes and you can make them by filling up a special tray with water and putting it in the freezer until it gets cold enough for the water to freeze. Once the water is frozen, you can pop the little cubes out of the tray and use them to cool your drinks or any other way you want!
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