When this white powder is added to water it instantly expands to 40 times its original volume producing a snow-like material. Instant snow is made from a safe, non-toxic super absorbent polymer and is supplied as a fine white powder which swells into fluffy white snow when water is added. Don’t take your eyes off the erupting snow! Leave the snow to dry and it will return to its powder form and can be used again. (Alternatively the snow can be added to soil in your school’s garden to help water retention). 1lb.