| Aluminum is an abundant metal
which has many uses. It comes from an ore called bauxite. Bauxite is a
clay like substance which contains aluminum and other substances. Scientists
extract these other substances from the bauxite. They then grind the bauxite
and put it in pressurized tanks. They then use filters to remove the mass
of the other substances. The scientists proceed to put the remaining liquid
through several other processes, and finally a chemical is yielded. The
chemical that is produced is a powdery, white mixture called alumina. Alumina
contains aluminum and oxygen which scientists seperate using electricity.
They finally produce a light metal with a bright, silvery luster. Aluminum
can then be used in many forms. |