27 From Sand to Glass

WHERE DOES IT COME FROM? FROM SAND TO GLASS

Heat and Shape Sara sips from a glass bottle. Where does it come from? Sand! sand

Sand goes to a factory. Materials are added. factory

furnace A furnace heats it.

It turns to liquid. It is cut into globs. They drop into tubes. liquid glass

They go in molds. These shape the glass. mold Glass hardens.