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 “non–Newtonian”. 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.