silicon (aka sand)
Sidney Waugh has written: 'The art of glass making' 'The making of fine glass'
no, sand is heated to make glass :) youtwat.^.^
Maybe pieces of old,broken glass
glass is fragile,yet strong
Maybe pieces of old,broken glass
Diamond is used to cut glass, since it is harder than glass.
Making Cut Glass - 1914 was released on: USA: 9 January 1914
Yes the Romans did invent glass. When they invented it was the 1st century AD (year 100)How they invented it was they were taking samples and looking though it and they made lenses that are used on microscopes.
Making glass from sand is a physical because the actual composition of the substance (silica) is not changing. Making glass is just melting all the bits of sand into a large piece (glass).
Potassium salts are used in glass and soap making. As a salt when used in glass making , it forms ; pyrex'. a tough heat resistqance glass. When used in soap making as potassium stearate. As potassium stearate it will lather in salt water, which ordinary soap ( sodium sterate ) will not easily do.
glass
Glass