We have a Winter wonderland in our weather station.  Sythetic snow is available to buy on Amazon and it is GREAT FUN! We have added a snowman, polar bear, pengiuins and seals for role play.  

Here are some of the words the children used to describe it.....

cold, squashy, slippery, funny, squidgey crunchy, soft, freezing, fluffy and cool.