| Aluminum is an abundant metal
that has many uses. It comes from an ore called bauxite, and its appearence
is clay like. Bauxite contains aluminum and several othe substances. Workmen
extract these other substances by grinding the bauxite then put the substance
in pressure tanks, finally they filter until a liquid remains. The bauxite
goes through several other processes until it yeilds a white powdery chemical.
The chemical mixture is called alumina which contains aluminunm and oxygen
The workmen use electricity to seperate the aluminum from the oxygen, this
produces the metal, that has a bright silvery luster. Aluminum comes in
many forms. |