Larry Alofs [Kenwood HS] Measuring the Density of a Gas Equipment : Gas lighter, Graduated cylinder, Water tub, Electronic scale Instead of measuring the mass of the graduated cylinder, he measured the mass of 
(Kenwood HS; Measuring; the Density of a Gas Equipment) (he; measured; the mass of)
Kenwood HS he
Measuring measured
the Density of a Gas Equipment
the mass of