Aluminum is an abundant metal
that has many uses. It comes from bauxite which is an ore. Bauxite looks
like clay and contains aluminum and several other substances. Workers extract
the other substances from the bauxite and then grind it. It is then put
in pressurized tanks. The other substances form a mass which is removed
by filters. A liquid remains which is put through several other processes
which yields a chemical. The chemical is a white powder which is alumina.
It is a mixture that contains aluminum and oxygen. They seperate the aluminum
from the oxygen with electricity. It finally produces a metal. The metal
is light has a luster and comes in many forms. |