Bitesize Daily: 12-13 Year OldsWeek 5The PH scaleBBC Bitesize Duration: 20 minutesPH scale, factors and French. Plus Manchester United’s Jesse Lingard with The Big Read.GenresLearningSecondaryBrandBitesize Daily: 12-13 Year OldsSeriesBitesize Daily: 12-13 Year Olds: Week 5 Source: BBC Online