Aluminum is an abundant metal
with many different uses. Aluminum is one of many substances contained
in a clay like ore called bauxite. Workmen extract these substances, grind
the bauxite, and put it in pressure filled tanks. The other substances
form a mass which is removed using filters. After this process of removal,
a liquid remains. The liquid is put through several processes until it
yields a white, powdery chemical called alumina. Alumina is a mixture containing
aluminum and oxygen. To finally produce the metal, the workmen seperate
the aluminum from the oxygen using electricity. This new light metal comes
in many forms, and has a bright silvery luster. |