Question

Janice is examining glass that broke in small pieces with no sharp edges. What type of glass is this? Janice is examining glass, also called safety glass, which shatters with no sharp edges.

Answer 1

Janice's safety glass shatters into small pieces with no sharp edges due to thermal tempering or chemical strengthening, providing a safer break pattern to reduce injury risks.

Step-by-step explanation:

Janice is examining a type of safety glass, which is designed to shatter into small, rounded pieces with no sharp edges. This kind of glass is typically used in automobile windows and certain types of building windows. The lack of sharp edges is a result of the glass being treated, either by thermal tempering or chemical strengthening. This results in safety glass that is less likely to cause injury when it breaks.

One common type of safety glass is tempered glass, which has been heat-treated to increase its strength and change its break pattern. Another type is laminated glass, which includes a layer of plastic between glass panes; this layer holds the broken pieces together on impact.

Using safety glass helps to reduce the risk of injuries, as it's designed to break in a way that is safer for people around it. This characteristic is especially important in environments where human safety is paramount, such as in vehicles and buildings.