| Aluminum is an abundant metal
with many uses. It comes from the ore Bauxite which looks like clay. Bauxite
contains aluminum along with several other substances. Workmen, extract
these other substances from the bauxite, grind it, and put it into pressurized
tanks. The other substances, form a mass which is then removed by
use of filters, leaving only a liquid. It is then put through several other
processes finally yielding a white, powdery chemical called alumina. It
is a mixture containing aluminum and oxygen. Workmen separate the aluminum
from the oxygen by using electricity. This produces a light metal with
of bright silvery luster. This metal comes in many forms. |