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How was glass made in ancient times!
CURIOUS CAT:Hello, children. What are you up to?
BOY:We're putting a picture onto the glass window.
GIRL:So the light can shine through.
CURIOUS CAT:Good thing you have glass windows in the classroom.
Do you want to find out how glass is made?
BOY:Yeah.
GIRL:Yeah.
CURIOUS CAT:Well, glass starts off as sand.
CURIOUS CAT:'A bit like the sand you might find on a beach. But to make clear glass, a special sand called Silica Sand is used.
This fine sand is needed because it's very pure, and does not contain any other unwanted chemicals. This special sand comes from all over the world.'
CURIOUS CAT:To find out what happens to the sand, Susan will show you around the glass factory.
How glass is made step by step
Off you go.
GIRL:Is glass only made of sand?
SUSAN:No, sand is just the main ingredient that goes into glass, but it also has lots of other things in it, like soda ash and limestone. Do you wanna go and have a look?
CURIOUS CAT:'Glass is made from sand, soda ash, and limestone, which are three minerals that come from the ground.
They are mixed together, then put into a very h
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