I've got a question for you guys. Do you think I can fit this length of polystyrene into this jar? Yes. No. No? Yeah? I like that – you lot have got some faith in me! Excellent. Right, this is what we ...

Evaporation close evaporationThe process in which a liquid changes state and turns into a gas. is used to separate a soluble solid from a liquid. For example, copper sulfate is soluble in water – its ...