Pyrex - Simple English Wikipedia, the free encyclopedia
![](http://upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Measuring_cup.jpg/220px-Measuring_cup.jpg)
Pyrex is a brand of very durable glass products. They are used as laboratory glassware and kitchenware.
Pyrex is also used in telescopes because it does not expand much.
Pyrex is a brand of very durable glass products. They are used as laboratory glassware and kitchenware.
Pyrex is also used in telescopes because it does not expand much.