Contents
Key Stage 1
Meaning
Glass is a hard, smooth, shiny, transparent, firm and stiff material. Glasses are made of the material glass.
About Glass
We use glass to make windows because it is transparent. We also use glass to make drinking glasses because it is hard, firm and waterproof.
Key Stage 2
Meaning
Glass is a hard, brittle and transparent solid material made form melted sand.
Key Stage 3
Meaning
Glass is a hard, brittle and transparent solid (at room temperature) made from Silicon Dioxide.