Evacuated means 'removed from' .
Children were evacuated for their safety because of the bombings near their home, they would usually be evacuated to the countryside.
Evacuated from where?
They got evacuated by train or they had to walk.
they were evacuated on trains
Dinosaurs didn't get evacuated. They died out.
they got evacuated to countrysides
Some adults were evacuated
He was evacuated in 1939.
I can give you several sentences.The president evacuated the town because of the possible hurricane.He evacuated his bowels.We evacuated when the enemy army marched past.
The mass of an evacuated chamber is the mass of the chamber. If you are asking about the mass of the volume of the evacuated chamber, then it is zero.
they were evacuated by train or by busses
He was evacuated to Cumberland in 1939