TULELA: And I’m Tulela Pea, a science communicator and podcaster. SUNAYANA: And this is Bitesize Chemistry. This is the second episode in an eight-part series on bonding, structure and properties.

Interactive activity: Changes of state - AQA Learn about changes of state from melting, evaporating and boiling with this interactive activity designed for the GCSE AQA Trilogy combined science ...