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Oliver Kim——Works at the International Maritime Organization, Lives in London, UK.
Pour warm water into the volcano until it is 1/2 to 3/4 of the way full.Add several drops of food coloring.Add a squirt of detergent. ... Add a couple of spoonfuls of baking soda.When you are ready to start the eruption, pour vinegar into your volcano.You can recharge the volcano with more baking soda and vinegar.
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