Most people know that the most of the gold used for making jewellery comes from gold mines. Make an inventory of everything in your classroom. Identify the chemical components of each item in your inventory and list the source of that component. The search for diamonds has come to Saskatchewan. Ultraviolet light is used to cure the plastic fillings.
Sodium sulphate is a mineral which is produced in several locations in southern Saskatchewan.
Ceramic tiles are used on the heat shield of the space shuttles. They are also used as flooring and wallcoverings. Some photographic processors are advertising that they use a process which removes heavy metal ions and toxic solvents from the water before it is disposed. Many products we use are welded by electric arc welding. Welding rods normally have a metal core and an outer coating.