Aluminum is a metal that is
abundant and has many uses. Bauxite is an ore that looks like clay. It
contains aluminum and many other substances. Workmen extract these other
substances by grinding the bauxite and putting it in pressurized tanks.
A mass will then be formed. Workmen will remove the mass and filter it
until only a liquid remains. After several processes a chemical is finally
yielded. The chemical is a white powdery substance called alumina. Alumina
is a mixture that contains aluminum and oxygen. By using electricity these
workmen seperate the mixture resulting in a new metal. This metal, which
comes in many forms, is very light and has a bright silvery luster. |