Glass
When ingredients are mixed to make glass, they must be heated to this specific temperature in a furnace.
What is 2400F
Beyond oil, whale blubber was used in the production of these four household items.
What are soap, leather, candles, and makeup?
The boy first suspected something was inside the cave when he heard this sound after throwing a stone.
What is something breaking?
This is the percentage of soda ash found in a standard mixture of glass.
What is 15 percent?
This specific tool was used by glassmakers to pick up a blob of hot, molten glass.
What is a rod?
Right whales were considered the "right" ones to kill by hunters because they floated when dead and possessed this physical trait.
What is a large amount of blubber?
These were the two materials used to wrap the parchment scrolls before they were placed in stone jars.
What are linen and leather?
For every one cent it cost to make a hand-blown bottle, this many machine-mold bottles could be produced.
What is fifteen?
This physical action was used by glassblowers to lengthen a bottle while the glass was cooling
What is swinging it back and forth?
This modern threat involves mechanical parts of large boats hitting whales in the North Atlantic.
What are ship propellers?
This high-ranking religious official in Jerusalem was the first person to buy the scrolls from the boy.
Who is an archbishop?
Commercial whale hunting of right whales lasted for approximately this many years.
What is 300 years?
Before 1924, flat window glass was created by slicing these open down one side and rolling them flat.
What are eight-foot-long tubes?
This is the name of the specific organization mentioned in the text that works to save whales.
What is the Center for Coastal Studies?
The second set of scrolls was found in 1952, located this far away from the original discovery site.
What is less than a mile?
This is the year the first Dead Sea Scrolls were discovered.
What is 1947?
To ensure they didn't break during shipping, glass sheets were packed in this material inside wooden boxes.
What is straw?
Rescuers used this type of technology to monitor "Whale 2030" after cutting two ropes off her body.
What is a tracking device?
The boy had to wait two days before entering the cave because he had to squeeze through this type of opening.
What is a narrow slit?
This is the year a machine was finally invented that could roll window glass flat without any blowing.
What is 1924?