one spoon of soda, half a cup of water, 2 or 3 drops of food colour, a large drop of vinegar, 5 glass beakers, a large beaker, some red food colour, 20 or 30 M&M chocolates, a piece of celery, some warm milk, a little oil, a little pepper, some paper towel, a pair of safety glasses, some rubber gloves, all the materials, a cup of hot water

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