Page 10 - The Science of Glass
P. 10
Archaeologists have found evidence that
people began making glass around 1600 BC.
Tiny glass objects were found during
archaeological digs. Ancient people heated sand
to a molten state. Then, they put the liquid into
molds to make whatever they needed, such as
simple tools and jars.
The first glass vessels were made through
core-forming. People covered a clay core by
winding a coil of molten glass around it. After
the glass cooled, the clay was scraped out,
leaving a hollow vessel. The vessels were small This ancient Roman
but useful and could hold perfume, medicine, glass vessel is from
or anything else people wanted to store. People the first century AD.
could store many items in their dwellings. Many
people wanted these glass vessels for themselves.
A core is A coil of molten
1 formed out 3 glass is wrapped
of clay. around the core.
A rod is
2 inserted into
the clay core.
5 The clay is
scraped out.
8 4 Handles are
shaped out of
molten glass.
