Here are a few items that you can try for revision.
Click on the link below to try the Kahoot! Quiz if you never got on to that in class. Challenge your friends at a certain time.
https://play.kahoot.it/#/k/379ec6f8-02d8-4517-a0f3-032ccceeabd8
The document below contains a set of revision questions on Heat for you to try.