Snow Experiment

We put some snow in a jar and we asked the kids to estimate how long it would take to melt.  We discussed how lovely and white the snow looks.....then we looked at the snow once it melted.  WOW what happened to the white snow?  The children observed that the melted snow became dirty water. We compared the dirty melted snow with clean tap water.  We discussed the importance of not eating the snow off ground.