We did a lab where we tested the viscosity of different liquids. We would drop a marble down in a tube filled with the liquid. The longer it would take to fall, the higher viscosity it had. It was interesting to see that the most viscous liquid was hair gel and the least viscous was rubbing alchohol. You can use whatever liquids you would like, but it is interesting to see how high a viscosity the things you use every day are!
The temperature of the liquid changes the viscosity. If the temperature increases, the viscosity usually decreases. If the temperature decreases, the viscosity will increase. The viscosity also depends of the composition, size, and shape. The viscosity changes with the kinetic energy of the molecules, which depend on the temperature. This all being said, the viscosity of a liquid can change, if it is heated or altered.
Viscosity describes the internal friction of a liquid. A liquid with a high viscosty resists motion because its molecular makeup gives it a lot of internal friction. A liquid with a low viscosity flows easily because its molecular makeup results in very little friction when it is in motion.
You can tell in the honey that it has a high viscosity because it is thicker and is more viscous.
You can tell in the water that it has a lower viscosity because it is thinner and is less viscous.
Work Cited (3 websites):
"DEFINITION OF VISCOSITY." Princeton University. N.p., n.d. Web. 26 Jan. 2014. <http://www.princeton.edu/~gasdyn/Research/T-C_Research_Folder/Viscosity_def.html>.
"Viscosity." Viscosity. N.p., n.d. Web. 26 Jan. 2014. <http://www.chem.purdue.edu/gchelp/liquids/viscosity.html>.
"Viscosity." The Free Dictionary. Farlex, n.d. Web. 29 Jan. 2014. <http://www.thefreedictionary.com/viscosity>.
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