Kinetic Sand: Non-Newtonian Substances


Kinetic Sand: Non-Newtonian Substances
Kinetic Sand: Non-Newtonian Substances
Kinetic Sand: Non-Newtonian Substances

Kinetic Sand: Non-Newtonian Substances



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The Kinetic Sand is child friendly too, of course! Non-toxic and anti-microbial qualities give you comfort that it can be stored safely for many, many uses. It’s passed all certifications for safety here and abroad, and is being used by thousands of kids at home, in school and kindly daily. You can purchase the sand in sizes of 1KG, 2.5KG, 5KG and the new colored sand in 2.5KG. The colored sand comes with a packet each of Blue, Green and Red totaling 2.5KG. 1KG is recommended for 1 or 2 children, larger amounts would be ideal for more children.

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Kinetic Sand is simply awesome. Mixing fun with fundamental principles of physics, you can learn and play. It’s not like any sand you know of. You can mould it, cast it and use it again and again and again. To us, it is 98% sand and 2% magic, if you consider bonding agents to be magic. I mean, it certainly feels like it.
The Science-y Stuff
Kinetic sand’s secret is in that 2% of magic.

Kinetic sand is what’s known in Physics as a non-Newtonian substance. Does that sound familiar? Probably, as Isaac Newton was the man who first hypothesized about gravity. Basically, kinetic sand defies some of Newton’s basic principles of substances, hence the name “nonNewtonian”. When under stress, i.e. played with, this special sand becomes almost solid. If you leave it to sit for a while, it behaves like a liquid. It’s fascinating! Another example of a non-Newtonian substance is corn starch and water.

It is a dilatant material made from an ultrafine sand and polydimethylsiloxane (also
called dimethicone) and marketed by Waba Fun, LLC. A dilatant material is a non-Newtonian
fluid in which its viscosity increases under stress. Another dilatant material can be made from
cornstarch and water (sometimes called Oobleck). The properties of Kinetic sand allows it to be
shaped into pyramids or other simple shapes and to be cut into shapes with cookie cutters or
molds. Kinetic sand can also be “sliced” into pieces using a knife. Over a time of a few minutes,
or if disturbed, the shapes will collapse.


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