Someone who studies matter at a very low temperature is called a cryogenicist.
a cryogenist
A cryogenist.
linguist
A slang term for someone who studies very hard is a "grind" or a "bookworm."
cryogenist
a cryogenist.
Temperature doesn't matter. The flu is very contagious.
All Matter
the temperature does not matter because there is no gravity
Ununseptium is very probable a solid.
The "amount of matter" is a popular - and not very precise - term for the object's mass.
Most elements are solids when they are at very low temperatures.