科学素养与生活应用·英语30篇（3）
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Why Bubbles Pop When They Touch Dry Surfaces
为什么泡泡一碰到干燥表面就会破裂
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Soap bubbles are thin films of water sandwiched between soap layers.肥皂泡是夹在两层肥皂膜之间的薄水膜。
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Dry surfaces pull water away fast, breaking the film’s balance.干燥表面会迅速吸走水分，破坏薄膜的平衡。
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When water evaporates, the bubble wall becomes too thin to hold shape.水分蒸发后，泡泡壁变得过薄，无法维持形状。
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A dry spot creates weak points where air rushes in quickly.干燥区域会形成薄弱点，空气迅速涌入。
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Even soft cloth can pop bubbles if it’s not damp first.即使柔软的布料，若未先沾湿，也会弄破泡泡。
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Wet surfaces let bubbles slide and last longer without bursting.湿润表面能让泡泡滑动并延长存在时间，不易破裂。
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Bubbles stay stable best on humid, smooth, and wet areas.泡泡在潮湿、光滑且湿润的区域最稳定。
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That’s why kids blow them over sinks or wet tables.因此孩子们常在水槽或湿桌面上吹泡泡。