Chemistry - Chemical Reactions - Combustion reactions - What Burns?

Sort 10 items into 'BURNS (combustible)' and 'DOESN'T BURN'. Burns: wood, gasoline, natural gas (methane), candle wax, alcohol, paper, propane. Doesn't burn: water, sand, glass, carbon dioxide, rock. After sorting, reveal: 'Combustion = burning. It's a reaction with OXYGEN that releases heat and lig