Mendeleev - Development of the Periodic Table, History of The Atom - Development of the Periodic Table, Atom vs Molecule vs Compound - Development of the Periodic Table...
C3.3.1 - Break in! (Filtration and Evaporation), C3.3.2 - Smelly problem (Litmus, UI and Neutralisation), C3.3.3 - Message in a bottle (paper chromatography)...