Gather the necessary materials for the experiment.
Viscosity - Brookfield Summary: The viscosity, or resistance to flow, of a material can be determined by a rotational viscometer. The viscometer can also be used to approximate other flow characteristics by relating viscosity and flow for a known composition. Because the specific rotational speed and the spindle used as well as the temperature.
To calculate viscosity of a liquid, you will need a sphere, a graduated cylinder, a ruler, a stopwatch, the liquid in question, a scale, and a calculator.[5]
This experiment has many steps, but when followed correctly, they will allow you to calculate the viscosity of any liquid.
The sphere can be a small marble or steel ball. Make sure its diameter is no greater than half the diameter of the graduate cylinder so it can easily be dropped into the cylinder.
A graduated cylinder is a plastic container that has graded markings on the side that allow you to measure volume.
You can use a watch instead of a stopwatch, but your measurements will be more accurate with a stopwatch.
The liquid must be clear enough to see the marble as it’s dropped through the liquid. Try testing many different liquids with different flow rates to see how their viscosities differ. Some common liquids you could try including water, honey, corn syrup, cooking oil, and milk.