| Aluminum is a metal It is abundant
and It has many uses. It comes from bauxite, bauxite is an ore and it looks
like clay. Bauxite contains aluminum and several other substances. Workmen
extract these other substances from the bauxite and they also grind the
bauxite. They put It in tanks which has pressure In them. The other substances
form a mass which Is removed. They use filters and liquid remains. They
put it through several other processes and It finally yields a chemical.
The chemical is powdery, white and alumina. It is a mixture which contains
aluminum and oxygen. Workmen separate the aluminum from the oxygen by using
electricity. They finally produce a metal that is light and has a luster.
The luster is bright and silvery. This metal also comes in many other forms. |