There is no set physical activity for Friday as it is catch-up day. You could look on the suggested links below for more activities or you could look on the Team Leader Challenge Page.
Supermovers: https://www.bbc.co.uk/teach/supermovers
Cosmic Kids Yoga: https://www.youtube.com/user/CosmicKidsYoga
Go Noodle: https://www.youtube.com/channel/UC2YBT7HYqCbbvzu3kKZ3wnw