Glass
Glass is made form sand, limestone, and soda ash. First, these three materials are mixed together in the right proportions, sometimes broken glass is added. Then, this mixture is heated strongly in a furnace, atfter this, glass is produced. Next, it is shpaed into bottles in the mould, and the bottles are reheated and cooled to strengthen the glass. Finally, they are ready to be used.
posted by Ariel's castle @ 7:24 PM
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