Bitesize Daily: 9-11 Year OldsWeek 7Science plus the Circulatory SystemBBC Bitesize Duration: 20 minutesFirst broadcast: Wed 3rd Feb 2021, 09:40 on CBBC ChannelLatest broadcast: Wed 3rd Feb 2021, 09:40 on CBBC HDThe circulatory system and sound experiments.GenresLearningPrimaryBrandBitesize Daily: 9-11 Year OldsSeriesBitesize Daily: 9-11 Year Olds: Week 7 Source: BBC Online