How is a glass made?

Answer 1

Glass is essentially silicon dioxide (the most common, but other minerals are used for special purposes) melted to a liquid and then cooled in such a way as to not form crystals, but a disordered structure. The previous poster was right: sand is mostly silicon dioxide.

To make plate glass, people take this molten glass and float it onto a molten layer of metal! The glass is then rolled off the pool of molten metal to cool and form sheets, which is how they can make glass so flat.

For a cool demonstration of how people used to make things out of glass, check out this video:

http://www.YouTube.com/watch?v=Ny1S5K3Zm3Q&feature=related

Answer 2

Glass is made by melting sand,soda ash,lime,some recycled glass in a furnance at 1900 degree celsius in a liquid state it is drawn on molten lead to make the glass surface flat and allowed to cool for 36 hours before packing.(the green colour in th glass appears due the iron content in it)

Answer 3

hi my name is billy eogor

===========

Answer to the question (regardless of Billy's name):

Glass can be melted and formed into new bottles, glass panes, etc.

Answer 4

Made out of melted sand and it contains ionic compounds that for lattices witch makes the glass strong and also out of plastic