This is made of aluminium. Aluminium is an element. Now, each element has a chemical symbol made of one or two letters. Cal: Right, OK. And what is the chemical symbol for aluminium? Mrs Roberts ...

Ever wondered what the most abundant element on Earth is? Or how the elements that make up our planet compare to those floating out in the vast universe?

It is based on a process known as electrolysis, in which an electrical current is used to produce the constituent elements from a chemical compound. In this case, aluminum oxide is separated into ...