{"id":64476,"date":"2026-06-13T04:29:12","date_gmt":"2026-06-12T19:29:12","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=64476"},"modified":"2026-06-13T04:29:12","modified_gmt":"2026-06-12T19:29:12","slug":"lemons-pop-balloons-the-hidden-science-of-limonene-balloons-dissolving-not-a-chemical-reaction","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=64476&lang=en","title":{"rendered":"Lemons Pop Balloons?! The Hidden Science of &#8220;Limonene Balloons&#8221; \u2014 Dissolving, Not a Chemical Reaction!"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>I&#8217;m Ken Kuwako, the Science Trainer. Every day is an experiment.<\/strong><\/span><\/p>\n<p>Just pressing a lemon peel against a balloon can make it burst with a loud pop. It sounds incredibly simple, yet when you witness it firsthand, it feels almost impossible to believe. It&#8217;s the kind of experiment that instantly makes people say, \u201cWait&#8230; why did that happen?\u201d What surprised me even more was discovering that the explanation wasn&#8217;t a chemical reaction, as I had always assumed.<\/p>\n<p>Take a piece of lemon peel and squeeze some of its juice onto a balloon. After a short while, the balloon suddenly pops.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-64044 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.05.jpeg\" alt=\"\" width=\"468\" height=\"411\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.05.jpeg 1036w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.05-300x264.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.05-1024x899.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.05-768x675.jpeg 768w\" sizes=\"auto, (max-width: 468px) 100vw, 468px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-64045 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.24.jpeg\" alt=\"\" width=\"472\" height=\"406\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.24.jpeg 1076w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.24-300x258.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.24-1024x881.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.24-768x661.jpeg 768w\" sizes=\"auto, (max-width: 472px) 100vw, 472px\" \/><\/p>\n<p>This famous demonstration is known as the <b>Limonene Balloon Experiment<\/b>. Lemon peels contain an oily aromatic compound called <b>limonene<\/b>. It&#8217;s the source of the fresh, citrus scent that makes lemons so distinctive. Widely used in fragrances, essential oils, and cleaning products, limonene is also the secret culprit that causes the balloon to burst. I captured the moment on video\u2014take a look!<\/p>\n<p><iframe loading=\"lazy\" title=\"\u300c\u30ea\u30e2\u30cd\u30f3\u98a8\u8239\u300d\u306b\u96a0\u3055\u308c\u305f\u6eb6\u89e3\u3068\u7269\u7406\u5909\u5316\u306e\u4e0d\u601d\u8b70\uff08\u5316\u5b66\u5909\u5316\u3067\u306f\u306a\u3044\uff01\uff09\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/Lohcg58HL3M?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<h3>Why Does It Pop?<\/h3>\n<p>Balloons are made from <b>natural or synthetic rubber<\/b>. Rubber gets its flexibility from long chain-like molecules called polymers that are tangled together.<\/p>\n<p>Limonene is a type of <b>organic solvent<\/b>, and it has the ability to dissolve rubber. When the liquid from the lemon peel touches the balloon, the limonene begins loosening the tangled polymer chains. This weakens the rubber in that area. Since the balloon is already stretched tightly by the air pressure inside, even a tiny weak spot can cause the entire balloon to rupture instantly.<\/p>\n<p>Take a look at these images as well. They clearly show the balloon&#8217;s surface gradually thinning until it finally bursts.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-64046 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.34.jpeg\" alt=\"\" width=\"476\" height=\"458\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.34.jpeg 632w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.34-300x289.jpeg 300w\" sizes=\"auto, (max-width: 476px) 100vw, 476px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-64047 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.48.jpeg\" alt=\"\" width=\"493\" height=\"479\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.48.jpeg 940w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.48-300x291.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.48-768x745.jpeg 768w\" sizes=\"auto, (max-width: 493px) 100vw, 493px\" \/><\/p>\n<h3>The Rule of \u201cLike Dissolves Like\u201d<\/h3>\n<p>Behind this phenomenon is a fundamental chemistry principle known as <b>solubility compatibility<\/b>, often summarized as \u201clike dissolves like.\u201d Substances with similar chemical properties tend to dissolve into one another more easily.<\/p>\n<p>Limonene is a <b>nonpolar organic compound<\/b>, and rubber is also largely <b>nonpolar<\/b>. Because they share similar properties, limonene can readily penetrate and dissolve the rubber.<\/p>\n<p>For the same reason, gasoline and kerosene can also cause a rubber balloon to pop. In fact, this is why ordinary rubber gloves are often not recommended when handling fuels\u2014the same principle is at work.<\/p>\n<h3>Not a Chemical Change, but a Physical One<\/h3>\n<p>For years, I believed this was a chemical change. It turns out that it isn&#8217;t.<\/p>\n<p>Limonene simply dissolves and loosens the rubber&#8217;s molecular structure; <b>the chemical structure of the rubber molecules themselves remains unchanged.<\/b> Think of it like untangling a ball of yarn. The yarn is still the same material\u2014it has simply been rearranged.<\/p>\n<p>That means this process is actually a <b>physical change<\/b>.<\/p>\n<p>Looking a little deeper, balloon rubber undergoes a manufacturing process called <b>vulcanization<\/b>. During vulcanization, sulfur atoms form bridges between rubber molecules, creating a cross-linked network. Limonene causes this network to <b>swell and loosen<\/b>, but it does not chemically break the sulfur bridges. It merely disrupts the structure physically.<\/p>\n<p>This makes the experiment an excellent classroom example for explaining that <b>dissolving is also a type of physical change<\/b>. In essence, it&#8217;s similar to table salt dissolving in water. In both cases, the substances themselves do not become new chemicals\u2014they simply mix together. It&#8217;s a great way to help students understand that \u201cdissolving\u201d doesn&#8217;t mean \u201cdisappearing\u201d; it means \u201cmixing at the molecular level.\u201d<\/p>\n<p>This experiment provides a vivid demonstration of <b>organic solvents, polymers, and solubility compatibility<\/b>. The fact that a simple squeeze of a lemon can make a balloon explode creates an immediate sense of wonder and curiosity. It&#8217;s an ideal introduction to chemistry because students naturally ask, \u201cWhy did that happen?\u201d From there, the discussion can expand into solubility, polymers, and the difference between physical and chemical changes. It&#8217;s a science lesson with a built-in mystery\u2014and those are often the most memorable.<\/p>\n<p>Give it a try and see the science for yourself!<\/p>\n<h3>Contact &amp; Requests<\/h3>\n<p>Bring the wonder of science closer to everyday life! Here you&#8217;ll find fun science experiments you can do at home, along with easy-to-follow explanations and practical tips. Feel free to explore and discover something new!<\/p>\n<p>\u2022 The content from Science Notebook has been published as a book. Learn more <a href=\"https:\/\/amzn.to\/42PMCEL\">here<\/a>.<br \/>\n\u2022 Learn more about Ken Kuwako, the creator of this site, <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">here<\/a>.<br \/>\n\u2022 For writing projects, lectures, science workshops, TV consulting, media appearances, and other inquiries, click <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">here<\/a>.<br \/>\n<span class=\"s2\">\u2022 Follow article updates on <a href=\"https:\/\/x.com\/kuwako\">X<\/a>!<\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.youtube.com\/user\/kkuwako\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-35048\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/3d9640dad7bc5538e76f92da1966ee19.jpg\" alt=\"\" width=\"30\" height=\"21\" \/><\/a><a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Science Notebook Channel<\/a> features videos of exciting science experiments!<\/p>\n<h3>\uff16\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=64043\">\u30ec\u30e2\u30f3\u3084\u30aa\u30ec\u30f3\u30b8\u3067\u98a8\u8239\u3092\u5272\u308d\u3046\uff01\u30a4\u30f3\u30d1\u30af\u30c8\u304c\u629c\u7fa4\u306e\u30ea\u30e2\u30cd\u30f3\u98a8\u8239\u306e\u5b9f\u9a13<\/a><\/p>\r\n<p style=\"text-align: center;\"><img class=\"alignnone  wp-image-64045\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.24.jpeg\" alt=\"\" width=\"406\" height=\"349\" \/><\/p>\r\n<h3 style=\"text-align: left;\"><span style=\"font-size: medium;\"><b><strong>\u30c6\u30ec\u30d3\u756a\u7d44\u76e3\u4fee\u30fb\u30a4\u30d9\u30f3\u30c8\u7b49\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n<li>\uff16\u6708\uff13\u65e5\uff08\u6c34\uff0920:30\u301c\u3000\u300c<a href=\"https:\/\/phys-edu.net\/wp\/?p=63950\"><wbr \/>\u30d0\u30ab\u30ea\u30ba\u30e0\u306e\u3061\u3087\u3063\u3068\u30d0\u30ab\u308a\u30cf\u30ab\u3063\u3066\u307f\u305f\uff01<\/a>\u300d\uff08\u30c6\u30ec\u30d3\u6771\u4eac\uff09\u3092\u79d1\u5b66\u76e3\u4fee\u30fb\u51fa\u6f14\u3057\u307e\u3059\u3002\u30c6\u30fc\u30de\u306f\u300c<wbr \/>\u305d\u3070\u306e\u51fa\u524d\u306f\u4f55\u4eba\u524d\u307e\u3067\u904b\u3079\u308b\u306e\u304b\u3001\u9650\u754c\u3092\u6e2c\u3063\u3066\u307f\u305f\u300d\u3067\u3059\u3002\u3000<\/li>\r\n<li>\uff16\u6708\uff14\u65e5(\u6728)\u30007:00\u301c\u3000\u300c<a href=\"https:\/\/www.ntv.co.jp\/toppa\/\">THE\u7a81\u7834\u30d5\u30a1\u30a4\u30eb<\/a>\u300d\uff08\u65e5\u672c\u30c6\u30ec\u30d3\uff09\u306b\u3064\u3044\u3066\u79d1\u5b66\u76e3\u4fee\u3057\u307e\u3057\u305f\u3002<\/li>\r\n<li>6\u670814\u65e5\uff08\u65e5\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=63530\">\u5343\u8449\u5927\u5b66\u30a4\u30f3\u30b9\u30bf\u30ec\u30fc\u30b7\u30e7\u30f3\u300c\u63a2\u7a76\u300d<\/a>\u306b\u3066\u8b1b\u5e2b\u3092\u52d9\u3081\u307e\u3059<\/li>\r\n<li>6\u670826\u65e5\uff08\u91d1\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=63067\">\u516c\u958b\u7814\u7a76\u4f1a\u300c\u8131\u4f5c\u696d\u5316\uff01\u30c7\u30b8\u30bf\u30eb\u5316\u3068\u6bb5\u968e\u7684\u6307\u5c0e\u3067\u5b9f\u73fe\u3059\u308b \u30aa\u30fc\u30e0\u306e\u6cd5\u5247\u306e\u63a2\u7a76\u300d<\/a><\/li>\r\n<li>\uff16\u670828\u65e5\uff08\u65e5\uff09\u3000<a href=\"https:\/\/www.davincimasters.jp\">\u30c0\u30d3\u30f3\u30c1\u30de\u30b9\u30bf\u30fc\u30ba\uff20\u662d\u548c\u5973\u5b50<\/a><\/li>\r\n<li>7\u670818\u65e5\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=60018\">\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u300c\u30ca\u30ea\u30ab\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\u300d\u306e\u8b1b\u5e2b\u3092\u3057\u307e\u3059<\/a>\u3002\u304a\u4f1a\u3044\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\r\n<\/ul>\r\n<h3><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/h3>\r\n<ul>\r\n<li>\u300e\u5927\u4eba\u306e\u305f\u3081\u306e\u9ad8\u6821\u7269\u7406\u5fa9\u7fd2\u5e33\u300f\uff08\u8b1b\u8ac7\u793e\uff09\u2026\u4e00\u822c\u5411\u3051\u306b\u65e5\u5e38\u306e\u7269\u7406\u306b\u3064\u3044\u3066\u516c\u5f0f\u3092\u5143\u306b\u7d10\u89e3\u304d\u307e\u3057\u305f\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=1827\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u3067\u306f\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u203b\u5897\u5237\u304c\u304b\u304b\u308a\uff16\u5237\u3068\u306a\u308a\u307e\u3057\u305f\uff082026\/02\/01\uff09<br \/><img class=\"alignnone wp-image-10940 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg\" sizes=\"(max-width: 220px) 100vw, 220px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0.jpg 311w\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2014-07-05 0.43.51\" width=\"220\" height=\"192\" \/><br \/><\/strong><\/li>\r\n<li>\u300e\u304d\u3081\u308b!\u5171\u901a\u30c6\u30b9\u30c8 \u7269\u7406\u57fa\u790e \u6539\u8a02\u7248\u300f\uff08\u5b66\u7814\uff09\u2026\u3000\u9ad8\u6821\u7269\u7406\u306e\u53c2\u8003\u66f8\u3067\u3059\u3002\u30a4\u30e9\u30b9\u30c8\u3092\u591a\u304f\u3057\u3066\u30a4\u30e1\u30fc\u30b8\u304c\u6301\u3066\u308b\u3088\u3046\u306b\u63cf\u304d\u307e\u3057\u305f\u3002\u6388\u696d\u306b\u3064\u3044\u3066\u3044\u3051\u306a\u3044\u3001\u7269\u7406\u304c\u82e6\u624b\u3001\u305d\u3093\u306a\u751f\u5f92\u306b\u304a\u3059\u3059\u3081\u3067\u3059\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=45322\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u306f\u3053\u3061\u3089\u3002<br \/><img class=\"alignnone wp-image-45718 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg\" sizes=\"(max-width: 184px) 100vw, 184px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg 756w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c-300x269.jpg 300w\" alt=\"\" width=\"184\" height=\"165\" \/><\/li>\r\n<\/ul>\r\n<h3><span style=\"text-align: center;\">\u5404\u7a2eSNS\uff08\u66f4\u65b0\u60c5\u5831\u3092\u304a\u5c4a\u3051\uff01\uff09<\/span><\/h3>\r\n<p style=\"text-align: center;\"><a style=\"text-align: center;\" href=\"https:\/\/twitter.com\/kuwako\">X(Twitter)<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.instagram.com\/science_seeds\/\">instagram<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.facebook.com\/kuwakolab\/\">Facebook<\/a>\uff08\u65e5\u672c\u8a9e\uff09<\/p>\r\n<p style=\"text-align: center;\"><a style=\"text-align: center;\" href=\"https:\/\/bsky.app\/profile\/kagakunoneta.bsky.social\">BlueSky<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.threads.net\/@science_seeds?hl=ja\">Threads<\/a>\uff08\u82f1\u8a9e\uff09<\/p>\r\n<h3 style=\"text-align: center;\"><strong>Explore<\/strong><\/h3>\r\n<ul>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=30764\">\u697d\u3057\u3044\u5b9f\u9a13<\/a>\u2026\u304a\u5b50\u3055\u3093\u3068\u4e00\u7dd2\u306b\u5922\u4e2d\u306b\u306a\u308c\u308b\u30a4\u30c1\u30aa\u30b7\u306e\u79d1\u5b66\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u9ad8\u6821\u7269\u7406\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\u306e\u52d5\u753b\u6559\u6750\u3082\u7528\u610f\u3057\u307e\u3057\u305f\u3002<\/li>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=798\">\u7406\u79d1\u306e\u6559\u6750<\/a>\u2026 \u7406\u79d1\u6559\u5e2b\u3092\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\uff01\u6388\u696d\u306e\u8cea\u3092\u9ad8\u3081\u3001\u6e96\u5099\u3092\u52b9\u7387\u5316\u3059\u308b\u305f\u3081\u306e\u9078\u308a\u3059\u3050\u308a\u306e\u6559\u6750\u3092\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n<li><a 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href=\"http:\/\/phys-edu.net\/wp\/?page_id=37\">About<\/a>\u00a0\u2026\u300c\u79d1\u5b66\u306e\u30cd\u30bf\u5e33\u300d\u306e\u30b3\u30f3\u30bb\u30d7\u30c8\u3084\u3001\u904b\u55b6\u8005\u3067\u3042\u308b\u6851\u5b50\u7814\u306e\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u30fb\u60f3\u3044\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/li>\r\n<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a>\u00a0\u2026\u5b9f\u9a13\u6559\u5ba4\u306e\u3054\u4f9d\u983c\u3001\u57f7\u7b46\u30fb\u8b1b\u6f14\u306e\u76f8\u8ac7\u3001\u79d1\u5b66\u76e3\u4fee\u7b49\u306f\u3053\u3061\u3089\u306e\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u304a\u5bc4\u305b\u304f\u3060\u3055\u3044\u3002<\/li>\r\n<\/ul>\r\n<p>&nbsp;<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;m Ken Kuwako, the Science Trainer. Every day is an experiment. Just pressing a lemon peel against a ba [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":64044,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","sns_share_botton_hide":"","vkExUnit_sns_title":"","vkexunit_cta_each_option":"","_lightning_design_setting":{"layout":"default"},"footnotes":"","jetpack_post_was_ever_published":false},"categories":[781],"tags":[],"class_list":["post-64476","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science-en"],"jetpack_featured_media_url":"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-01-4.45.05.jpeg","jetpack-related-posts":[{"id":53673,"url":"https:\/\/phys-edu.net\/wp\/?p=53673&lang=en","url_meta":{"origin":64476,"position":0},"title":"The Invisible Force: How to Make Static Electricity Dance with Just a Balloon!","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u67083\u65e5","format":false,"excerpt":"Hi, I'm Ken Kuwako, your Science Trainer. Every da\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=781&lang=en"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/cb42cbb6b7e61aa1f0b20a77b175f692.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/cb42cbb6b7e61aa1f0b20a77b175f692.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/cb42cbb6b7e61aa1f0b20a77b175f692.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/cb42cbb6b7e61aa1f0b20a77b175f692.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":50953,"url":"https:\/\/phys-edu.net\/wp\/?p=50953&lang=en","url_meta":{"origin":64476,"position":1},"title":"A Hot Air Balloon You Can Fly at Home! 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Every day is\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=781&lang=en"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-07-23-5.26.47.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-07-23-5.26.47.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-07-23-5.26.47.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/07\/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-2025-07-23-5.26.47.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":56304,"url":"https:\/\/phys-edu.net\/wp\/?p=56304&lang=en","url_meta":{"origin":64476,"position":2},"title":"Can You Touch Sound? 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Every day is\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=781&lang=en"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/09\/957cb137befeecbf9acfc20137773f67.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/09\/957cb137befeecbf9acfc20137773f67.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/09\/957cb137befeecbf9acfc20137773f67.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/09\/957cb137befeecbf9acfc20137773f67.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":51145,"url":"https:\/\/phys-edu.net\/wp\/?p=51145&lang=en","url_meta":{"origin":64476,"position":3},"title":"Get hands-on with the Law of Inertia! 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