You should be working through your project checklists – so that you can do tonal pencil & colour drawings, outlines to use paint at a later date. 

This is a good read for tips on how to make their projects interesting and why you need to experiment with materials: 

https://www.bbc.co.uk/bitesize/guides/z8pfcj6/revision/1

Here is a little quiz for you:

https://www.bbc.co.uk/bitesize/guides/zc7sfrd/test

The links below have virtual tours around museums and art galleries from around the world. Lots of arts and cultures information, there is also a link to free creative courses students can look into. 

https://artsandculture.google.com/partner?hl=en

A wide range of subjects - not just art: 

https://chatterpack.net/blogs/blog/list-of-online-resources-for-anyone-who-is-isolated-at-home