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Sugar burns

Place a lump of sugar on an ashtray. Try to ligthen it. You wouldn't succeed! Rub it with cigarette ashes and try again. It will burn with a pretty blue flame. Get close with a cold glass surface to the flame. Water will condense. After combustion, the aspect has changed. It is no more sugar ! Properties of matter have changed, new matters with new properties (water !) did come up. This was a chemical experience.

found at: Bizarrelabs and adapted.