a vial
salt
beaker
tank filled with cold salt water and hot water
a balance beam
Procedure:
fill the vial with salt and water
find the volume of the vail by fill up a beaker to 80, putting in the vial and subtracting the difference between the two measurements
weigh the vial on a balance beam
find the density = mass/volume
adjust so that the density is close to 1
Data
30.5/26 = 1.15
20.86/25 = .83
20.116/23=.90
30.3/23=1.31
20.93/23=.91
We never did make the vial float in the middle