What glass is made from?
Limestone, sand and sodium carbonate
At What Temperature Does Glass Melt?
Around 1500°C
How this is called?
Stained glass
Where is located the world's largest aquarium window?
In Zhuhai, China
Where is the longest glass bridge?
In Vietnam
How is this called?
Bulletproof glass
When was the first glass object created by humans?
About 4000 years ago
What's this job?
Glassblower
Name 5 things made of glass:
Glass, glasses, window, vase, mirror...
How many % of glass can we recycle?
It's 100% recyclable
Is glass a solid?
No, amorphous solid
When were plate (flat) glass windows invented?
In the 17th century
