Vinegar and Baking Soda Volcano

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Materials: Vinegar, baking soda, a bowl or small volcano model, food coloring (optional).

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How to: Put baking soda in a bowl. When you pour vinegar on top, the baking soda will start to bubble and overflow like lava. You can combine food coloring for a more colorful effect.

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Scientific explanation: Vinegar (acid) and baking soda (base) react to release carbon dioxide, which causes foaming.