03:00Sonic SnackboxSeries 1Is Mars our next home? And a mystery on the beach...School Radio Duration: 18 minutes Thu 21st Sep 2017, 03:00 on School RadioAvailable for over a yearListen nowA feast of listening activities for 6-9 year olds. Show more GenresChildren'sLearningBrandSonic SnackboxSeriesSonic Snackbox: Series 1 Source: BBC Online