How Glass is made Go Back Activity of coloured glass views 2:10 Ordinary glass is colorless but it is possible to produce colored and transparent glass by using combination of different chemicals in the glass making process. Glass can be given many beautiful colors like blue, violet, turquoise, ruby red, pink, purple, amber, orange, deep yellow, amethyst, dark green, even black and white. Coloured glass is used to make beautiful pictures, especially in windowpanes. Such windows are known as ‘stained glass windows’ They are seen mostly in churches. We have learn about how glass made, how it is shaped, how it is colored etc. But we must also think about our environment. So it is important to know how glass can be recycled.So we have learnt about glass and its important properties. Introduction and Explanation Activity of coloured glass Explanation Explain verbs