Maddie's Do You Know?

BBC RB 1

Tuesday 16 June 2020  11:40 - 12:00 (20 mins)
Traffic Lights and Emergency Lights. Maddie learns how traffic lights help vehicles travel safely through road junctions, then visits a factory making emergency warning lights. [S]

Maddie's Do You Know? may be available on playback
Maddie's Do You Know? (BBC RB 1) Tuesday 16 June 2020 11:40 - 12:00