Here you can see 100 pictures of snow and the effects of snowfall. The many facets of snow crystals are described here, along with attempts to understand their formation. This brief site had good information about ice crystals. In this experiment, students measure the relative densities of these three substances. In this collaborative project, students share data and correspondence with each other in an attempt to gain a better understanding of this remarkable weather phenomenon.
Students use four different mixtures to draw snow crystals.