I'm sorry to post again on this topic but struggling to be creative. I teach year 5/6 and need an interesting lesson on changing state ( reversible/irreversible changes will be referred to but not main focus). I am struggling how to make it interesting and have only come up healting chocolate, bread and ice cube with tealights etc. I can't make it too complicated due to lack of resources, support! Any ideas would be greatly received. Ive found loads of games on bitesize etc but feel I need a bit more than this!