Aluminum is a relatively lightweight type of silver-colored metal. Most soda cans are made out of aluminum.
Aluminum is the most abundant metal in Earth's crust. Because it is lightweight, durable, and highly pliable, it is used in everything from airplane parts and foil to bicycles and high-voltage power lines. Its name is derived from alumina (aluminum oxide), which traces back to the Latin word alumen, meaning "bitter salt."