β All ancient topics
How did they make glass?
Sand plus fire equals magic
Have you ever wondered how clear, shiny glass comes from plain old beach sand?
1/5
- Long ago
A Beach Mystery
Ancient people noticed something amazing near hot beach bonfires. The hot fire melted sand into shiny, mysterious drops!
The big idea
Super hot fire melts ordinary sand into gooey liquid that turns into clear glass!
Fun facts
- β¨ Nature makes glass too, like smooth dark obsidian rock from hot volcanoes!
- β¨ Ancient glass was usually green or brown because sand has tiny bits of iron in it.
- β¨ Glass can be recycled over and over again without ever losing its strength!
Science words
- Molten β Something cooked so hot that it melts into a runny liquid.
- Kiln β A special super-duper hot oven used to bake clay and melt glass.
- Glassblowing β The art of shaping hot gooey glass by blowing air through a metal pipe.