Top Metal

Welcome to Reactivity Hill, where metals fight for a place: the more reactive the metal, the higher it stands. Every new metal starts at the bottom and duels its way up. Watch both metals react side by side in cold water or dilute acid, judge the fizz and choose CLIMB or STAY. Then use the hill to knock less reactive metals out of their compounds, spot oxidation and reduction, and work out the order of mystery metals from experimental results.