Aluminum is an abundant metal
that has many uses. It comes from bauxite, which is an ore that looks like
clay. Bauxite contains aluminum and several other substances. Workmen extract
these other substances from the bauxite. They grind the bauxite and put
it into pressurized tanks. The other substances form a mass; therefore,
they remove the mass using filters leaving only a liquid. They put it through
several other processes, which it finally yields a chemical. The chemical
is powdery and white, which makes it alumina. It is a mixture which contains
aluminum and oxygen. Workmen using electricity seperate the aluminum from
the oxygen finally producing a metal. The metal is light with a luster.
The luster is very bright and silvery. This type of metal comes in many
different forms. |