| Aluminum is an abundant metal
with many uses. It is contained in an ore called bauxite, which looks like
clay. Bauxite also contain several other substances which are extracted
by workmen. The workmen grind the bauxite and place it into pressured tanks.
The other substances form a mass, which is removed through filters. A liquid
remains and is put through several other processes. Finally it yields a
white, powdery chemical called alumina. This is a mixture that contains
aluminum and oxygen. The two are separated using electricity to produce
a metal. The metal is light, with a bright, silvery luster, and comes in
many forms. |