These three links take you to
1) Acids and Alkalis
2) Metals
3) Polymers and Composites ( which means Non-Metals!)
https://www.bbc.co.uk/education/guides/zyn3b9q/revision
https://www.bbc.co.uk/education/guides/zqwmxnb/revision
https://www.bbc.co.uk/education/guides/ztxnsbk/revision