十万个为什么·科学启蒙30篇（3）
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Baking Soda and Vinegar Make Bubbles
小苏打和醋为什么会冒泡
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When I mix baking soda and vinegar in my kitchen, tiny bubbles appear right away.
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The fizzing sound tells me a quick change is happening inside the cup.
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I can feel the cup get cooler as the mixture fizzes and bubbles rise.
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My mom says this reaction helps clean sticky spots on our sink.
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We use it to unclog the drain when water flows too slowly down the pipe.
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It’s safe to try at home if an adult watches me carefully.
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The bubbles stop when all the baking soda has reacted with the vinegar.
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I always wear goggles because splashes might sting my eyes a little.
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This simple mix teaches me how everyday things can work together in fun ways.
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After cleaning, I rinse everything well so no sour smell stays behind.