In this test, you must determin the volume of liquid in each graduated cylinder along with the uncertainty of your measure.
To take an accurate measure, you must look at the lowest part of the meniscus ( the convex dip in the liquid's surface)
If you determin what each line on the cylinder is worth ( graduates and subgraduates ), you can calculate the uncertainty to be half of the smallest value indicated by the subgraduates. For exemple, a cylinder has subgraduates worth 1mL, the uncertainty will be 0,5mL.
Thus your measure can be uncertain by + or - 0,5mL
In this exemple, you can see that each line represents 1mL because there are 10 segments between 50 and 60mL. You can also see that the meniscus is below 53mL and above 52 mL. An acceptable reading would then be 52,5mL +/- 0,5mL ( uncertainty ).
You could not accurately say 52,8mL because the cylinder is not precise enough for that. Another observer could decide on 53mL so you would have slightly different results because of the 0,5mL uncertainty in your measurements.
Now it's your turn to try it out
The measure is
mL +/-
mL
The measure is
mL +/-
mL
The measure is
mL +/-
mL
The measure is
mL +/-
mL
The measure is
mL +/-
mL
The measure is
mL +/-
mL
The measure is
mL +/-
mL
The measure is
mL +/-
mL
The measure is
mL +/-
mL
The measure is
mL +/-
mL
The measure is
mL +/-
mL
The measure is
mL +/-
mL
The measure is
mL +/-
mL