By observing how it reacts with other substances
boyle's law holds good in this case and the gas experiences decrease in volume....provided the gas is not in a container with fixed dimensions!
its volume will decrease
virtual image
Which term describes how much space a substance occupies?
volume
Not sure how that question relates to the one initially asked, but the answer to 'How is measurement of weight different from measurement of mass?' is weight includes the force of gravity.
Weight Includes The Force Of Gravity (A+)Weight is the measurement of the force of gravity in relation to mass, while mass is the measurement of matter in an object.
Yes, density is a physical property.
Condensation
forces and motion