Below is a link for Cosmic Kids. This has a variety of yoga sessions for children all based around a fun theme. You may like to use this as part of your chill time or to keep active if you can't get outside.
Why not keep active and take on a challenge! Below is a challenge grid of different exercises you can do at home. You can keep track of how well you are doing each day and see if you can improve throughout the week. Good Luck!