8th C3 Minerals Practice Test

Becoming a standard material for packaging comes down to weight, durability, and recyclability. Aluminum fits best because it is lightweight yet strong enough to hold a beverage, resists corrosion in a drink environment, and forms an effective barrier to air and moisture. The big plus is its recyclability: melting and reusing aluminum uses far less energy than making new metal, and it can be recycled many times without losing quality. That combination—lightweight, protective for the contents, and highly recyclable—explains why beverage cans are made from aluminum. Copper is valuable but expensive and heavier for cans; iron can rust and is heavier; lead is toxic for foods and drinks, so it isn’t used.