{"id":65497,"date":"2026-07-19T05:39:35","date_gmt":"2026-07-18T20:39:35","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=65497"},"modified":"2026-07-19T05:40:29","modified_gmt":"2026-07-18T20:40:29","slug":"the-gas-ratio-tells-it-all-the-thrill-of-water-electrolysis-with-an-h-tube","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=65497&lang=en","title":{"rendered":"The Gas Ratio Tells It All! The Thrill of Water Electrolysis with an H-Tube"},"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>Electrolysis of water is one of the most iconic chemistry experiments, and using an H-shaped tube makes it even more spectacular. Today, I&#8217;d like to share why this classic demonstration is still one of my favorites\u2014and how it beautifully brings a simple chemical formula to life.<\/p>\n<p>Few moments in science are as exciting as hearing a tiny &#8220;pop!&#8221; during an experiment. This time, together with Mr. T, we carried out the timeless experiment of <b>electrolyzing water<\/b> using an H-tube. Even after seeing it countless times, it&#8217;s still impossible not to be amazed.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-38204 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/10\/bb6d4a2d7da35630de62f9e42f59bb61.jpg\" alt=\"\" width=\"480\" height=\"388\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/10\/bb6d4a2d7da35630de62f9e42f59bb61.jpg 814w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/10\/bb6d4a2d7da35630de62f9e42f59bb61-300x243.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/10\/bb6d4a2d7da35630de62f9e42f59bb61-768x621.jpg 768w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/p>\n<h3>Why We Chose an H-Tube<\/h3>\n<p>This H-tube is designed with a water reservoir that allows gases to be collected efficiently. Since it&#8217;s made of glass, it&#8217;s relatively expensive and can break if handled carelessly. That&#8217;s why, in regular classroom lessons, I usually use smaller electrolysis kits instead.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"eYjO7wIygq\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=43037\">\u3010\u52d5\u753b\u3067\u89e3\u8aac\u3011\u6c34\u306e\u96fb\u6c17\u5206\u89e3\u5b9f\u9a13\u3001\u6e96\u5099\u304b\u3089\u7247\u4ed8\u3051\u307e\u3067\u5fb9\u5e95\u7db2\u7f85\uff01<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201c\u3010\u52d5\u753b\u3067\u89e3\u8aac\u3011\u6c34\u306e\u96fb\u6c17\u5206\u89e3\u5b9f\u9a13\u3001\u6e96\u5099\u304b\u3089\u7247\u4ed8\u3051\u307e\u3067\u5fb9\u5e95\u7db2\u7f85\uff01\u201d \u2014 \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=43037&amp;embed=true#?secret=aiB99j6RMD#?secret=eYjO7wIygq\" data-secret=\"eYjO7wIygq\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>But the H-tube offers several advantages that smaller devices simply can&#8217;t match. You can collect the gases directly through the stopcocks, and more importantly, the larger size makes the entire experiment far more dramatic to watch. When you&#8217;re demonstrating chemistry in front of a classroom, that visual impact makes all the difference.<\/p>\n<h3>The Beautiful 1:2 Ratio<\/h3>\n<p>As electricity flows through the water, oxygen begins to form at the anode while hydrogen is produced at the cathode. Watching the water level slowly move as more gas is generated is surprisingly satisfying.<\/p>\n<p>After a while, something remarkable becomes clear: the volume of gas collected settles into a perfect <b>1:2 ratio<\/b>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-65493 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.31.jpeg\" alt=\"\" width=\"448\" height=\"295\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.31.jpeg 1212w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.31-300x198.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.31-1024x674.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.31-768x506.jpeg 768w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><\/p>\n<p>This isn&#8217;t a coincidence. It&#8217;s direct evidence of water&#8217;s chemical formula, H\u2082O. Every water molecule contains two hydrogen atoms and one oxygen atom, and that invisible molecular structure reveals itself as a visible ratio of gases.<\/p>\n<p>That&#8217;s what makes this experiment so fascinating. The hidden world of atoms suddenly becomes something you can actually see with your own eyes.<\/p>\n<h3>What Happens When You Bring in a Flame?<\/h3>\n<p>Next, we tested each gas with a flame. Here&#8217;s what happened.<\/p>\n<p><iframe loading=\"lazy\" title=\"\u6c34\u306e\u96fb\u6c17\u5206\u89e3\uff01\u6c17\u4f53\u306b\u706b\u3092\u3064\u3051\u3066\u307f\u308b\u3068\u2026\u3010\u4e2d\u5b66\u7406\u79d1\u3011\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/YvQLpOpM8dE?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<p>Hydrogen burns with a distinctive &#8220;pop,&#8221; while oxygen doesn&#8217;t burn itself\u2014it supports combustion, making other materials burn more vigorously.<\/p>\n<p>Oxygen<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-65494 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.36.jpeg\" alt=\"\" width=\"528\" height=\"401\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.36.jpeg 1036w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.36-300x228.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.36-1024x777.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.36-768x583.jpeg 768w\" sizes=\"auto, (max-width: 528px) 100vw, 528px\" \/><\/p>\n<p>Hydrogen<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-65495 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.48.jpeg\" alt=\"\" width=\"530\" height=\"405\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.48.jpeg 1038w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.48-300x229.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.48-1024x781.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-19-5.36.48-768x586.jpeg 768w\" sizes=\"auto, (max-width: 530px) 100vw, 530px\" \/><\/p>\n<p>Reading about these properties in a textbook is one thing, but seeing them happen right before your eyes is something completely different. No matter how many times I perform this experiment, it still brings that same sense of wonder.<\/p>\n<p>Using a large H-tube makes the experience much more powerful than using a compact classroom apparatus. An everyday substance as ordinary as water transforms into two completely different gases with nothing more than electricity. Even more amazing, the amounts of those gases perfectly reflect the molecular structure of water itself.<\/p>\n<p>It&#8217;s a wonderful reminder that chemistry isn&#8217;t just a collection of formulas\u2014it&#8217;s a way of revealing the invisible rules that shape our world.<\/p>\n<h3>Contact &amp; Collaboration<\/h3>\n<p>Let&#8217;s make science more fun and accessible! On this site, you&#8217;ll find easy-to-follow science experiments you can try at home, along with practical tips and explanations. Feel free to explore!<\/p>\n<p>\u2022 My science blog has also been published as a book. Learn more <a href=\"https:\/\/amzn.to\/42PMCEL\">here<\/a>.<br \/>\n\u2022 Learn more about me, Ken Kuwako, <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">here<\/a>.<br \/>\n\u2022 For writing, lectures, science workshops, TV consulting, and media appearances, click <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">here<\/a>.<br \/>\n<span class=\"s2\">\u2022 Follow me on <a href=\"https:\/\/x.com\/kuwako\">X<\/a> for the latest article updates!<\/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 Notes Channel<\/a> features videos of exciting science experiments!<\/p>\n<h3>\uff19\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n\u304a\u5f01\u5f53\u7bb1\u3092\u30d7\u30e9\u30d0\u30f3\u304c\u308f\u308a\u306b\u3057\u3066\u30ad\u30fc\u30db\u30eb\u30c0\u30fc\u3092\u4f5c\u308d\u3046\uff01\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=35313\">\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u304a\u5f01\u5f53\u7bb1\u3092\u4f7f\u3063\u305f\u30ad\u30fc\u30db\u30eb\u30c0\u30fc\u4f5c\u308a\uff01<\/a><\/p>\r\n<p style=\"text-align: center;\"><img class=\"alignnone wp-image-35705 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/69951296b11caa484208330661c3ad16.jpg\" sizes=\"auto, (max-width: 449px) 100vw, 449px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/69951296b11caa484208330661c3ad16.jpg 1008w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/69951296b11caa484208330661c3ad16-300x130.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/04\/69951296b11caa484208330661c3ad16-768x334.jpg 768w\" alt=\"\" width=\"449\" height=\"195\" \/><\/p>\r\n\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 \t<li>\uff18\u6708\uff12\uff17\u65e5\uff08\u6728\uff09\u79d1\u5b66\u76e3\u4fee\u756a\u7d44\u653e\u9001\u4e88\u5b9a<\/li>\r\n \t<li>\uff19\u6708\uff12\uff10\u65e5\uff08\u65e5\uff09\u30c0\u30d3\u30f3\u30c1\u30de\u30b9\u30bf\u30fc\u30ba\u51fa\u6f14\u4e88\u5b9a<\/li>\r\n \t<li>\uff11\uff10\u6708\uff11\uff10\u65e5\uff08\u571f\uff0911:15~12:00\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=66205\">\u5343\u8449\u5e02\u79d1\u5b66\u30d5\u30a7\u30b9\u30bf2026\u300c\u6851\u5b50\u5148\u751f\u306e\u56de\u8ee2\u79d1\u5b66\u30b7\u30e7\u30fc\u300d\u306b\u3066\u30b5\u30a4\u30a8\u30f3\u30b9\u30b7\u30e7\u30fc\u3092\u884c\u3044\u307e\u3059<\/a>\u3002<\/li>\r\n \t<li>12\u670826\u65e5\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=64825\">\u30ca\u30ea\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\uff08\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\uff09\u958b\u50ac<\/a><\/li>\r\n<\/ul>\r\n<h3><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/h3>\r\n<ul>\r\n \t<li>\u300e<a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\">\u9ad8\u6821\u5165\u8a66 \u5206\u89e3\u554f\u984c\u96c6 \u7406\u79d1<\/a>\u300f\uff08\u5b66\u7814\uff09\u2026\u96e3\u3057\u3044\u554f\u984c\u3082\u5c0f\u3055\u306a\u554f\u984c\u306b\u5206\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u3093\u306a\u5206\u89e3\u306e\u6280\u8853\u304c\u8eab\u306b\u3064\u304f\u3088\u3046\u306b\u6df1\u304f\u95a2\u308f\u308a\u3092\u6301\u3063\u3066\u4f5c\u308a\u307e\u3057\u305f\u3002\r\n<a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\"><img class=\"alignnone  wp-image-65097 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-04-8.40.17.jpeg\" alt=\"\" width=\"172\" height=\"244\" \/><\/a>\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\r\n<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\" \/><\/strong><\/li>\r\n \t<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\r\n<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;\">\u3010\u65e5\u672c\u8a9e\u3011<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>\u3000\u3010\u82f1\u8a9e\u3011<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><\/p>\r\n\r\n<h3 style=\"text-align: center;\"><strong>Explore<\/strong><\/h3>\r\n<ul>\r\n \t<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 \t<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 \t<li><a href=\"https:\/\/www.youtube.com\/c\/kkuwako\">Youtube<\/a>\u2026\u79d1\u5b66\u5b9f\u9a13\u7b49\u306e\u52d5\u753b\u3092\u914d\u4fe1\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"https:\/\/music.youtube.com\/playlist?list=PLoK4ZvKN9S2NgpYIochcQs0aL-vrRB_Qw\">\u79d1\u5b66\u30e9\u30b8\u30aa<\/a>\u00a0\u2026\u79d1\u5b66\u30c8\u30d4\u30c3\u30af\u3092\u307b\u307c\u6bce\u65e5\u914d\u4fe1\u4e2d\uff01AI\u6280\u8853\u3092\u99c6\u4f7f\u3057\u3066\u4f5c\u6210\u3057\u305f\u300c\u8033\u3067\u697d\u3057\u3080\u79d1\u5b66\u300d\u3092\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"http:\/\/phys-edu.net\/wp\/?page_id=20940\">\u8b1b\u6f14<\/a>\u00a0\u2026\u5168\u56fd\u5404\u5730\u3067\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u30fb\u30b5\u30a4\u30a8\u30f3\u30b9\u30b7\u30e7\u30fc\u7b49\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a 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 \t<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>","protected":false},"excerpt":{"rendered":"<p>I&#8217;m Ken Kuwako, the Science Trainer. Every day is an experiment. Electrolysis of water is one of the mos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":38204,"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-65497","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science-en"],"jetpack-related-posts":[{"id":53945,"url":"https:\/\/phys-edu.net\/wp\/?p=53945&lang=en","url_meta":{"origin":65497,"position":0},"title":"The Science of the &#8216;Pop!&#8217;: Making Hydrogen Gas at Home","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u67087\u65e5","format":false,"excerpt":"I'm Ken Kuwako, your Science Trainer. 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\/2022\/12\/fedf019bc7e16778461dffc28bc4648e.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/fedf019bc7e16778461dffc28bc4648e.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/fedf019bc7e16778461dffc28bc4648e.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":53799,"url":"https:\/\/phys-edu.net\/wp\/?p=53799&lang=en","url_meta":{"origin":65497,"position":1},"title":"The Science Thriller: The Magical Ammonia Fountain and the 1-in-3 Chance of Success!","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u67085\u65e5","format":false,"excerpt":"I'm Kuwako Ken, a Science Trainer. Every day is an\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\/2023\/01\/0ca4787260c83c1ec72d0fcceb7309a3.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/01\/0ca4787260c83c1ec72d0fcceb7309a3.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/01\/0ca4787260c83c1ec72d0fcceb7309a3.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/01\/0ca4787260c83c1ec72d0fcceb7309a3.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":51648,"url":"https:\/\/phys-edu.net\/wp\/?p=51648&lang=en","url_meta":{"origin":65497,"position":2},"title":"Mixing Is the Secret! Soybean-Sized Copper in the Copper Oxide Reduction Experiment","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u67086\u65e5","format":false,"excerpt":"Hi, I'm Ken Kuwako, a science trainer. Every day i\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\/05\/42cb60867a2e15f9668b1870690e1282.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/05\/42cb60867a2e15f9668b1870690e1282.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/05\/42cb60867a2e15f9668b1870690e1282.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/05\/42cb60867a2e15f9668b1870690e1282.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":53903,"url":"https:\/\/phys-edu.net\/wp\/?p=53903&lang=en","url_meta":{"origin":65497,"position":3},"title":"Invisible Intrigue: The 3 Clues That Reveal Carbon Dioxide&#8217;s True Identity","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u67086\u65e5","format":false,"excerpt":"I\u2019m Ken Kuwako, your Science Trainer. 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Measuring Sound Wavelengths with Your Smartphone (Air Column Resonance Experiment)","author":"\u6851\u5b50 \u7814","date":"2026\u5e747\u67085\u65e5","format":false,"excerpt":"I'm Ken Kuwako, a science educator. Every day is a\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\/2015\/09\/38ccc9c14adf9de24ef878e1045ca5d5.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":51808,"url":"https:\/\/phys-edu.net\/wp\/?p=51808&lang=en","url_meta":{"origin":65497,"position":5},"title":"Master the Saliva &#038; Starch Experiment in 50 Minutes! \u2014 Clever Tricks That Actually Work in Class","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u67089\u65e5","format":false,"excerpt":"I\u2019m Ken Kuwako, the Science Trainer. 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