Yes, because if glass is heated it breaks, if glass is not heated it doesn't break.
It can be heated and change appearance, can be painted or stained, can be hardened.
no, sand is heated to make glass :) youtwat.^.^
it is the tempered glass!
sand is grinded and then heated and left to moult into glass
When the heated glass first begins to sag.
Glass is made by sand that is heated at extereme hot tempetures
it will shatter
When glass is heated to a certain point it becomes easy to shape. It can be bent and shaped into many ways.
Rubber and glass which become softer as they are heated are examples of crystalline solids
Glass manipulation is when you heat up the glass. Once the glass is heated up it then can be manipulated using certain tools.
A new material - glass - is obtained.
when one material is heated it expand:because the glass is not a conductor of heat