{"id":53869,"date":"2025-10-05T17:49:43","date_gmt":"2025-10-05T08:49:43","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=53869"},"modified":"2025-10-05T17:52:04","modified_gmt":"2025-10-05T08:52:04","slug":"the-pros-guide-turn-drugstore-peroxide-into-pure-oxygen-in-minutes-tips-not-found-in-textbooks","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=53869&lang=en","title":{"rendered":"The Pro&#8217;s Guide: Turn Drugstore Peroxide into Pure Oxygen in Minutes (Tips Not Found in Textbooks!)"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>I&#8217;m Ken Kuwako, your Science Trainer! Every Day is an Experiment.<\/strong><\/span><\/p>\n<p>We all know hydrogen peroxide as that common disinfectant, &#8220;Oxydol.&#8221; But did you know you can actually extract oxygen\u2014the gas vital for our very existence\u2014from this liquid? Today, I&#8217;m sharing a classic science experiment, often done in middle school, that uses simple, everyday materials to generate oxygen. While it seems easy, a few key tricks are necessary for a smooth and successful result. I&#8217;ll walk you through the entire process, from prep to cleanup, sharing professional tips that aren&#8217;t in the textbook. These pro moves will save you time and dramatically boost your success rate! Ready to dive into the world of science with me?<\/p>\n<p>What You&#8217;ll Need<\/p>\n<ul>\n<li>Hydrogen Peroxide solution (3%) &#8211; 7 mL<\/li>\n<li>Manganese Dioxide (MnO2)<\/li>\n<li>3 Test Tubes<\/li>\n<li>Matches<\/li>\n<li>Incense Stick (or splint)<\/li>\n<li>Container for spent materials<\/li>\n<li>Wet Rag<\/li>\n<li>Limewater (Calcium Hydroxide solution)<\/li>\n<\/ul>\n<p>Why Does Hydrogen Peroxide Produce Oxygen? The Science Behind the Experiment<br \/>\nSo, why does hydrogen peroxide spontaneously produce oxygen? Hydrogen peroxide is an aqueous solution of a slightly unstable substance called hydrogen peroxide (H2O2). If left alone, it will slowly decompose into water (H2O) and oxygen (O2):<\/p>\n<p style=\"text-align: center;\"><span style=\"text-align: center;\">2H<\/span><span style=\"text-align: center;\">2<\/span><span style=\"text-align: center;\">O<\/span><span style=\"text-align: center;\">2<\/span><span style=\"text-align: center;\">\u27f62H<\/span><span style=\"text-align: center;\">2<\/span><span style=\"text-align: center;\">O+O<\/span><span style=\"text-align: center;\">2<\/span><\/p>\n<p>The black powder, Manganese Dioxide (MnO2), dramatically speeds up this reaction. Manganese dioxide acts as a catalyst, meaning it drives the chemical reaction forward without being consumed or permanently changed itself. Think of it as a pacemaker or a support runner for a marathoner, boosting the reaction&#8217;s speed!<\/p>\n<p>Quick and Successful! Experiment Steps and Pro Tips<br \/>\nPro Tip 1: Use a Single &#8216;Granule&#8217; of Manganese Dioxide!<br \/>\nManganese dioxide comes in powder and granular forms, and I highly recommend the granular type.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41740 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/8142a6ab9236d953bd124877cf7b76ec.jpg\" alt=\"\u7c92\u72b6\u306e\u4e8c\u9178\u5316\u30de\u30f3\u30ac\u30f3\" width=\"395\" height=\"315\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/8142a6ab9236d953bd124877cf7b76ec.jpg 1150w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/8142a6ab9236d953bd124877cf7b76ec-300x239.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/8142a6ab9236d953bd124877cf7b76ec-1024x817.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/8142a6ab9236d953bd124877cf7b76ec-768x613.jpg 768w\" sizes=\"auto, (max-width: 395px) 100vw, 395px\" \/><\/p>\n<p>If you use the powder, its massive surface area causes the reaction with hydrogen peroxide to happen too quickly. You&#8217;ll get a violent burst of foam and bubbles, and the reaction will be over almost instantly. Granules, however, allow for a calmer, more sustained reaction, giving you plenty of time to collect the oxygen. You only need one small piece!<\/p>\n<p>Pro Tip 2: 3% Peroxide is Fine! Prep the Solution Right Before Use<br \/>\nThe standard 3% hydrogen peroxide solution available at any drugstore is more than enough to generate a good amount of oxygen. At this concentration, it&#8217;s generally safe\u2014just wash your hands quickly if you get some on your skin.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-47157 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/9227413e88b20537acc40eaa34039fc2.jpg\" alt=\"\u30aa\u30ad\u30b7\u30c9\u30fc\u30eb\" width=\"220\" height=\"467\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/9227413e88b20537acc40eaa34039fc2.jpg 696w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/9227413e88b20537acc40eaa34039fc2-141x300.jpg 141w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/9227413e88b20537acc40eaa34039fc2-482x1024.jpg 482w\" sizes=\"auto, (max-width: 220px) 100vw, 220px\" \/><\/p>\n<p>Since hydrogen peroxide breaks down easily, it&#8217;s best to prepare the required amount in a beaker right before the lab and have students take only what they need immediately. This keeps the solution fresh and the reaction vigorous.<\/p>\n<p>Pro Tip 3: Reaction Too Slow? &#8216;Heat it Up!&#8217;<br \/>\nMake sure your test tubes are stored in water beforehand.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41739 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/4b2c9626eb7045b6a0e8f88c636921a1.jpg\" alt=\"\" width=\"441\" height=\"398\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/4b2c9626eb7045b6a0e8f88c636921a1.jpg 1378w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/4b2c9626eb7045b6a0e8f88c636921a1-300x271.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/4b2c9626eb7045b6a0e8f88c636921a1-1024x924.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/4b2c9626eb7045b6a0e8f88c636921a1-768x693.jpg 768w\" sizes=\"auto, (max-width: 441px) 100vw, 441px\" \/><\/p>\n<p>Chemical reactions naturally slow down in cold weather, like during the winter. If you notice the oxygen isn&#8217;t coming out very well, try this: prepare a large beaker of hot water and immerse the reaction test tube into it. Increasing the temperature increases the kinetic energy of the molecules, which significantly speeds up the reaction!<\/p>\n<p>Safety Note: Don&#8217;t leave the test tube in a rack while heating; hold it securely with your hand.<\/p>\n<p><iframe loading=\"lazy\" title=\"\u304a\u6e6f\u306e\u4e2d\u306b\u5165\u308c\u308b\u3068\u53cd\u5fdc\u304c\u901f\u307e\u308b\uff01\u9178\u7d20\u306e\u767a\u751f\u5b9f\u9a13\uff08\u6c17\u4f53\u306e\u767a\u751f\uff09\uff08\u4e2d\u5b66\uff11\u5e74\uff09\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/nm14nMfTU8E?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>Pro Tip 4: Test for &#8216;Combustion-Supporting&#8217; Power!<br \/>\nThis is the climax of the experiment: testing the properties of the collected oxygen! Light your incense stick, then blow out the flame so only a glowing ember remains. Gently insert the glowing stick into the test tube. You&#8217;ll hear a little pop as the ember suddenly reignites and flares up with a bright flame! This is due to oxygen&#8217;s property of supporting combustion. The reason we breathe in oxygen is the same: to &#8220;burn&#8221; nutrients in our bodies to produce energy. It truly is the gas of life!<\/p>\n<p>Pro Tip 5: Using Limewater to Prove What the Gas Isn&#8217;t<br \/>\nNext, pour some limewater into the third test tube, cap it, and shake. The result will be&#8230; nothing. The limewater remains clear.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41746 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/f51d582da73c933f2ab7252b62085938.jpg\" alt=\"\u77f3\u7070\u6c34\u306e\u5909\u5316\u306a\u3057\" width=\"396\" height=\"675\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/f51d582da73c933f2ab7252b62085938.jpg 540w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/f51d582da73c933f2ab7252b62085938-176x300.jpg 176w\" sizes=\"auto, (max-width: 396px) 100vw, 396px\" \/><\/p>\n<p>This is not a failure! Limewater is a reagent used to detect carbon dioxide (CO<br \/>\n2<br \/>\n\u200b<br \/>\n)\u2014it turns cloudy white in its presence. By remaining clear, you have successfully proven that the gas produced is not carbon dioxide. This is a perfectly valid and important scientific result!<\/p>\n<p>Safe and Easy Cleanup<br \/>\nSince manganese dioxide is a catalyst, it remains unchanged after the reaction. Do not pour it directly down the sink, as it can clog the pipes! Instead, pour the contents of the test tube into a sieve or fine strainer first to capture the manganese dioxide, then rinse the test tube.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41744 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/1f0b0e182672e3a0906eecd746db3e6a.jpg\" alt=\"\u4e8c\u9178\u5316\u30de\u30f3\u30ac\u30f3\u306e\u7247\u4ed8\u3051\" width=\"311\" height=\"338\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/1f0b0e182672e3a0906eecd746db3e6a.jpg 748w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/1f0b0e182672e3a0906eecd746db3e6a-276x300.jpg 276w\" sizes=\"auto, (max-width: 311px) 100vw, 311px\" \/><\/p>\n<p>This is also a great time to practice using a test tube brush correctly!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41747 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/aeff9893cbe29185b7f8abc6521270f0.jpg\" alt=\"\u8a66\u9a13\u7ba1\u306e\u6d17\u3044\u65b9\" width=\"248\" height=\"273\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/aeff9893cbe29185b7f8abc6521270f0.jpg 1042w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/aeff9893cbe29185b7f8abc6521270f0-272x300.jpg 272w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/aeff9893cbe29185b7f8abc6521270f0-929x1024.jpg 929w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/aeff9893cbe29185b7f8abc6521270f0-768x846.jpg 768w\" sizes=\"auto, (max-width: 248px) 100vw, 248px\" \/><\/p>\n<p>Mastering these tips will allow you to complete the experiment smoothly within a standard 50-minute class period. Up next: experiments on generating carbon dioxide and hydrogen!<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"Xx4bGQ3a91\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=41854\">\u672a\u6765\u306e\u30af\u30ea\u30fc\u30f3\u30a8\u30cd\u30eb\u30ae\u30fc\u300c\u6c34\u7d20\u300d\u3092\u81ea\u5206\u306e\u624b\u3067\u751f\u307f\u51fa\u305d\u3046\uff01\uff08\u6c34\u7d20\u306e\u767a\u751f\u5b9f\u9a13\uff09<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201c\u672a\u6765\u306e\u30af\u30ea\u30fc\u30f3\u30a8\u30cd\u30eb\u30ae\u30fc\u300c\u6c34\u7d20\u300d\u3092\u81ea\u5206\u306e\u624b\u3067\u751f\u307f\u51fa\u305d\u3046\uff01\uff08\u6c34\u7d20\u306e\u767a\u751f\u5b9f\u9a13\uff09\u201d \u2014 \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=41854&amp;embed=true#?secret=YEkK4iCBcJ#?secret=Xx4bGQ3a91\" data-secret=\"Xx4bGQ3a91\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>Contact and Consulting<br \/>\nMake the wonders and fun of science more accessible! I&#8217;ve put together easy-to-understand tips and fun science experiments you can do at home. Feel free to search around!<\/p>\n<p>The content from this blog is now available in a book. Find out more <a href=\"https:\/\/amzn.to\/42PMCEL\">here<\/a>.<\/p>\n<p>Learn more about the organizer, Ken Kuwako, <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">here<\/a>.<\/p>\n<p>For all requests (writing, lectures, science workshops, TV consulting, appearances, etc.), please click <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">here<\/a>.<br \/>\n<span class=\"s2\">&#8211; I post updates on new articles 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>Catch our experiment videos on the <a href=\"https:\/\/www.youtube.com\/user\/kkuwako?sub_confirmation=1\">Science Neta Channel<\/a>!<\/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 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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, your Science Trainer! Every Day is an Experiment. We all know hydrogen peroxide as that  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":41745,"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":""},"categories":[781],"tags":[],"class_list":["post-53869","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\/2022\/12\/fa84ba7f3481ff1b990428d0c2fb5f6d-1.jpg","jetpack-related-posts":[{"id":51776,"url":"https:\/\/phys-edu.net\/wp\/?p=51776&lang=en","url_meta":{"origin":53869,"position":0},"title":"A Science Show Smash Hit! 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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\/2024\/12\/efe37dd373658446d0958c77b40b3bc5.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/efe37dd373658446d0958c77b40b3bc5.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/efe37dd373658446d0958c77b40b3bc5.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/efe37dd373658446d0958c77b40b3bc5.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":51690,"url":"https:\/\/phys-edu.net\/wp\/?p=51690&lang=en","url_meta":{"origin":53869,"position":1},"title":"The Big Bang: When Hydrogen and Oxygen Ignite! 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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\/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":59676,"url":"https:\/\/phys-edu.net\/wp\/?p=59676&lang=en","url_meta":{"origin":53869,"position":3},"title":"This Is Science! Bringing Copper Back to Life with a Copper Plate and Chopsticks \u2014 The Drama of Oxidation &#038; Reduction","author":"\u6851\u5b50 \u7814","date":"2026\u5e741\u670830\u65e5","format":false,"excerpt":"I am Ken Kuwako, your Science Trainer. 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