How to Make a Glass

           There are some steps in making glass. The first step is mixing the basic materials (that is sand, soda, and limestone) in a furnace. Next step is melting the materials in a certain temperature in the furnace. The mixture from the melting process then divided based on the product that wanted to be created. To make a plate glass, the mixture is flattened using a roller. To make a bottle glass, the mixture is placed in a removable mould and then blown by air to make a bottle shape. The last step is cooling the mixture so it last appearance is a glass.