Glass

How you define annealing of glass?

What are the importance of annealing of glass?

What are the significance of annealing of glass?

Define annealing of glass.

Annealing is the

By adding ferric oxide we get glass with the colour-

What materials are these things made from? (Sand / Wood / Cement / Paper)

Why are thermometers and electric bulbs made of glass?

Fill in the blank with a suitable word:

Stained glass is made by adding different _____ (metals/ chemicals) to the mixture from which glass is made.   

Making walls with glass keeps a place warm.

What will happen if you stand behind glass while playing hide and seek?

Choose the appropriate word from the options.

Which material is man-made? (Cotton/Glass)