I was feeling brave and so here’s the result
Boo thought she liked it, then she wasn’t quite so sure and then she realised she did!!
She managed to grasp the concept that if you keep it moving it stays solid but if you leave it alone it goes ‘gloopy’. Home ed, practical experiments at work!! Ok, she’s only 2 (almost) and she probably won’t remember unless we do it a few more times but I’m happy.