Science FictionSeries 3Episode 5: Is Every Snowflake Different?CBBCFirst broadcast: Fri 2nd Nov 2012, 15:30 on CBBC ChannelDr Sorcha Knowles and Professor Mike McCork answer science questions. Is every snowflake different? Show more ContributorsDirector:Ian KennyProducer:Colm TobinWriter:Damien OwensWriter:Aidan O'DonovanGenresChildren'sFactualBrandScience FictionSeriesScience Fiction: Series 3 Source: BBC Online