Marble Viscosity Experiment

Expand on the experiment by estimating how long it will take for the marble to sink to the bottom of the jar.

Marble viscosity experiment.

This is also a great opportunity to practice drawing and using tables as well as making predictions beforehand. If the marble falls too quickly through the fluid to obtain accurate timing use a taller graduated cylinder or a lighter marble or both. In this viscosity experiment we attempt to refine the procedure by comparing fluids by dropping a marble through them. Have students measure the viscosity of a fluid at a few different temperatures and graph the viscosity y axis vs.

July 1 2013 at 1 23 pm done a viscosity race before but this time i wanted to do it on a bigger scale and really get the kids. Timing the marble works best when using liquids that have a high viscosity ie. It is the ratio of mass to volume and is a. Marble washed clean so that we don t waste the fluids we re dropping it through.

Viscosity of a liquid can be calculated from the time elapsed provided that you know the height of the column and the densities of the sphere and the liquid. Dropping the marble into a less viscous liquid like water will take much less time. Activity extensions viscosity changes with temperature. Honey corn syrup and molasses.

You ll need a homemade ramp an reply. Density is a measure of how compact something is. The weight of the marble which is the gravitational force also causes stress on the liquid. Then set a timer and find out how close your estimate was.

High viscosity fluids like honey and glue resist the changes caused by these forces the best. Viscosity of liquids is often very temperature sensitive with most liquids and gases becoming less viscous thinner as they heat up. Viscosity races making science fun for kids says.