|What are pop rocks made of?|
Pop rocks are mostly made of sugar and carbon
dioxide. The sugar is melted down with
flavoring and mixed with carbon dioxide gas.
When this mixture cools, the candy hardens and
traps the carbon dioxide inside. When you eat
the candy, your saliva dissolves the sugar,
releasing the carbon dioxide, exactly like what
happens when you open a can of soda pop. The
only difference between soda pop and pop rocks
is that in soda, the carbon dioxide is contained
in a liquid, whereas in pop rocks the carbon
dioxide is contained in a solid. The reaction
going on in your mouth is the same!
Pop rocks are just made of a few ingredients
(like sugars) that are melted together. The
reason they "pop" in your mouth is because when
the sugars are melted together at higher
temperatures, they apply a high pressure of
carbon dioxide, that gets trapped inside when
the candy cools. When the candy dissolves in
your mouth, the trapped carbon dioxide "pops"
and is released. This is the same thing that
happens with pop or soda, where a high pressure
of carbon dioxide is applied to the drink, which
traps CO2 inside the water.
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