You are viewing content which is not in your chosen language.
Iron
Iron is one of the most common elements on Earth.
It's the fourth most abundant element in the Earth's crust, making up roughly 5% of the crust after oxygen, silicon and aluminium.
Pure iron is a silvery metal, though when exposed to oxygen it produces red iron oxide, or rust.
Rust is ...
Please log in to view and download the complete transcript.