Interesting fact:

Did you know that around 12 per cent of the Earth’s land surface is covered in permanent snow and ice? The largest snowflake ever recorded was 15 inches wide and 8 inches long. It was seen in Montana in 1987 – residents described it as ‘larger than a milk pan’. Snowflakes are made of crystals of ice that form from bits of dirt in air – they can have as many as 200 hundred crystals in them!