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View this post on Instagram Viscoelastic "Melting Snowman": non-newtonian flow is demonstrated by these blobs of viscoelastic silicon polymer (aka Silly Putty) in the shape of snowman- if force is applied over a short period of time the substance shows elastic properties (bounces like a superball), but if the force is applied slowly the substance flows like a viscous liquid (flattens under gravity over a few hours as shown here). Thus this snowman does not melt because it is already liquid, one that flows slowly though. Mostly sold as a toy, Silly Putty was discovered after mixing boric acid with silicone oil during World War II in an attempt to find a rubber substitute. Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #viscoelastic #nonnewtonian #fluiddynamics #nonnewtonianfluid #physics #physicsfun #physicstoy #elastic #dilatant #dilatantmaterial #science #viscosity #coefficientofrestitution #scienceisawesome @educational_innovations #meltingsnowman #snowman A post shared by physicsfun (@physicsfun) on Jun 14, 2019 at 11:44am PDT
Viscoelastic "Melting Snowman": non-newtonian flow is demonstrated by these blobs of viscoelastic silicon polymer (aka Silly Putty) in the shape of snowman- if force is applied over a short period of time the substance shows elastic properties (bounces like a superball), but if the force is applied slowly the substance flows like a viscous liquid (flattens under gravity over a few hours as shown here). Thus this snowman does not melt because it is already liquid, one that flows slowly though. Mostly sold as a toy, Silly Putty was discovered after mixing boric acid with silicone oil during World War II in an attempt to find a rubber substitute. Follow the link in my profile for info on where to get this and other amazing items featured here on @physicsfun #viscoelastic #nonnewtonian #fluiddynamics #nonnewtonianfluid #physics #physicsfun #physicstoy #elastic #dilatant #dilatantmaterial #science #viscosity #coefficientofrestitution #scienceisawesome @educational_innovations #meltingsnowman #snowman
A post shared by physicsfun (@physicsfun) on Jun 14, 2019 at 11:44am PDT
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Students can analyze data obtained from testing different materials to determine which materials have the properties that are best suited for an intended purpose.
Students can use the Melting Snowman to make observations and measurements to identify materials based on their properties.
Students can use the Melting Snowman in an investigation to describe that synthetic materials come from natural resources and can have an impact on society.
Students can use the Melting Snowman to construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the Periodic Table and knowledge of the patterns of chemical properties.
Students can use Melting Snowman to observe a silicone-based putty that has properties of both solid and liquid. Fun for students to produce it over and over again using new sizes and shapes to build the longest lasting snowman. For all students this is a great opportunity to practice data collection and observation skills.
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