CURIOUS CREATIONS – MAKE YOUR OWN SNOW
CURIOUS CREATIONS – MAKE YOUR OWN SNOW : Make your own snow, just add water to create your own snow in an instant! Each box contains a packet of 20g Magic Snow powder which is actually a completely safe non-toxic polymer called Sodium Poluacrylate – an active ingredient in astronaut maximum absorbency clothing and babies nappies. The magic powder will expand to over 100 times its original size. No mixing required – just add water and watch the snow erupt. For slushier snow add more water. For “drier” snow add less water and a little salt. Add a few drops of food coloring to the water to create whatever color snow you like (perhaps not yellow!). The snow once formed will last for days.
The formation of even a single snowflake is a complex event at the molecular level. In nature, it begins when a cloud’s water vapor condenses into water droplets. Even at temperatures below freezing, though, most of these droplets typically stay in liquid form, because they need a particle upon which to freeze: either a dust particle or a few water molecules that have arranged themselves into the hexagonal matrix that characterizes ice.
Once droplets begin crystallizing on a central particle, though, the process accelerates rapidly. With a crystal nucleus in place, the super cooled water molecules in the surrounding water droplets readily condense on the crystal, adding to its growth in a geometrically regular way. By the time the large crystal (which we call a snowflake) has left the cloud, Libbrecht estimates that it will have absorbed the water from about 100,000 nearby droplets.
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