{"id":53885,"date":"2025-10-05T17:55:32","date_gmt":"2025-10-05T08:55:32","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=53885"},"modified":"2025-10-05T17:55:32","modified_gmt":"2025-10-05T08:55:32","slug":"poksahtelevaa-tiedetta-vapauta-happi-desinfiointiaineesta-ammattilaisen-vinkeilla","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=53885&lang=fi","title":{"rendered":"Poksahtelevaa tiedett\u00e4: Vapauta happi desinfiointiaineesta ammattilaisen vinkeill\u00e4!"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>Tervehdys! Olen tiedevalmentaja Ken Kuwako. Jokainen p\u00e4iv\u00e4 on kokeilu.<\/strong><\/span><\/p>\n<p>Kaikille tuttu desinfiointiaine &#8220;Oksidoli&#8221;. Tiesitk\u00f6, ett\u00e4 t\u00e4st\u00e4 nesteest\u00e4 voidaan itse asiassa erottaa happea, joka on meille elint\u00e4rke\u00e4 aine? T\u00e4ll\u00e4 kertaa esittelen happikokeen, joka tehd\u00e4\u00e4n usein yl\u00e4kasteen ensimm\u00e4isell\u00e4 luokalla ja jossa k\u00e4ytet\u00e4\u00e4n helposti saatavilla olevia materiaaleja. Vaikka koe saattaa n\u00e4ytt\u00e4\u00e4 yksinkertaiselta, sen onnistuminen vaatii pient\u00e4 oveluutta. Paljastan ammattilaisten vinkit, joita ei l\u00f6ydy oppikirjoista ja jotka nopeuttavat koetta ja parantavat sen onnistumisprosenttia huomattavasti. Valmisteluista siivoukseen, k\u00e4yd\u00e4\u00e4n kaikki huolellisesti l\u00e4pi. Kurkistetaan yhdess\u00e4 tieteen maailmaan!<\/p>\n<h3>Tarvittavat v\u00e4lineet<\/h3>\n<ul>\n<li>Oksidolia (vetyperoksidia 3 %) 7 ml<\/li>\n<li>Mangaanidioksidia<\/li>\n<li>3 koeputkea<\/li>\n<li>Tulitikkuja<\/li>\n<li>Suitsuketikku<\/li>\n<li>Astia hiillokselle<\/li>\n<li>M\u00e4rk\u00e4 r\u00e4tti<\/li>\n<li>Kalkkivett\u00e4<\/li>\n<\/ul>\n<h3>Miksi Oksidolista syntyy happea? Kokeen periaate<\/h3>\n<p>Miksi Oksidolista ylip\u00e4\u00e4t\u00e4\u00e4n syntyy happea? Oksidoli on todellisuudessa <b>vetyperoksidin (H\u2082O\u2082)<\/b> vesiliuos. T\u00e4m\u00e4 vetyperoksidi on hieman ep\u00e4vakaa aine, ja se hajoaa hitaasti vedeksi (H\u2082O) ja hapeksi (O\u2082), jos sen antaa olla.<\/p>\n<p style=\"text-align: center;\">2H\u2082O\u2082 \u27f6 2H\u2082O + O\u2082<\/p>\n<p>T\u00e4t\u00e4 reaktiota nopeuttaa dramaattisesti musta jauhe, <b>mangaanidioksidi (MnO\u2082)<\/b>. Mangaanidioksidi toimii <b>katalyyttin\u00e4<\/b>, eli se edist\u00e4\u00e4 kemiallista reaktiota muuttumatta itse. Se on kuin maratonjuoksijan kiritt\u00e4j\u00e4, joka auttaa pit\u00e4m\u00e4\u00e4n vauhtia yll\u00e4.<\/p>\n<h3>Nopeasti onnistumiseen! Kokeen vaiheet ja ammattilaisen vinkit<\/h3>\n<h4><b>Vinkki \u2460: K\u00e4yt\u00e4 vain YKSI rae mangaanidioksidia!<\/b><\/h4>\n<p>Mangaanidioksidia on saatavilla sek\u00e4 jauheena ett\u00e4 rakeina, mutta ehdottomasti <b>rakeet<\/b> ovat parempi valinta.<\/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=\"Rakeista mangaanidioksidia\" 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>Jos k\u00e4yt\u00e4t jauhemaista ainetta, sen kosketuspinta-ala vetyperoksidin kanssa on liian suuri, ja reaktio tapahtuu aivan liian nopeasti. Se kuplii rajusti hetken ja p\u00e4\u00e4ttyy sitten \u00e4kisti. Rakeiden avulla reaktio on sen sijaan tasainen ja kest\u00e4\u00e4 pidemp\u00e4\u00e4n, joten happea ehtii ker\u00e4t\u00e4 rauhassa. M\u00e4\u00e4r\u00e4ksi riitt\u00e4\u00e4 vain &#8220;<b>yksi ainoa<\/b>&#8221; rae.<\/p>\n<h4><b>Vinkki \u2461: 3-prosenttinen Oksidoli riitt\u00e4\u00e4! Valmistele juuri ennen koetta<\/b><\/h4>\n<p>Apteekista saatava Oksidoli (vetyperoksidi 3 %) tuottaa riitt\u00e4v\u00e4sti happea. T\u00e4ll\u00e4 pitoisuudella ei ole vaaraa, vaikka ainetta joutuisi iholle, kunhan sen huuhtelee heti pois.<\/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=\"Oksidoli\" 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>Vetyperoksidi hajoaa helposti, joten on sujuvinta kaataa tarvittava m\u00e4\u00e4r\u00e4 dekantterilasiin juuri ennen kokeen alkua, josta oppilaat voivat itse annostella sen.<\/p>\n<h4><b>Vinkki \u2462: Reaktio hidas? L\u00e4mmit\u00e4!<\/b><\/h4>\n<p>Upota koeputki etuk\u00e4teen veteen.<\/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><strong>Talvella tai muuten viile\u00e4ll\u00e4 s\u00e4\u00e4ll\u00e4 kemialliset reaktiot hidastuvat. Jos tuntuu, ettei happea muodostu kunnolla, ota suuri dekantterilasi, t\u00e4yt\u00e4 se kuumalla vedell\u00e4 ja upota reaktiokoeputki siihen.<\/strong> L\u00e4mp\u00f6tilan noustessa molekyylien liike vilkastuu, ja reaktio nopeutuu huomattavasti.<\/p>\n<p>\u203b Turvallisuussyist\u00e4 \u00e4l\u00e4 j\u00e4t\u00e4 koeputkea telineeseen, vaan pid\u00e4 siit\u00e4 tukevasti kiinni k\u00e4dell\u00e4si.<\/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<h4><b>Vinkki \u2463: Testaa palamista edist\u00e4v\u00e4 vaikutus!<\/b><\/h4>\n<p>T\u00e4m\u00e4 on kokeen huippuhetki, jossa varmistetaan ker\u00e4tyn kaasun ominaisuudet! Kun laitat palavan suitsuketikun koeputkeen&#8230; hiipuva liekki leimahtaa &#8220;poksahtaen&#8221; uudelleen ja palaa kirkkaasti. T\u00e4m\u00e4 johtuu hapen ominaisuudesta <b>edist\u00e4\u00e4 palamista<\/b>. My\u00f6s me ihmiset k\u00e4yt\u00e4mme happea hengitt\u00e4ess\u00e4mme polttaaksemme ravintoaineita ja saadaksemme energiaa. Se on todellakin el\u00e4m\u00e4\u00e4 yll\u00e4pit\u00e4v\u00e4 kaasu.<\/p>\n<h4><b>Vinkki \u2464: Todista kalkkivedell\u00e4, ett\u00e4 kyseess\u00e4 EI ole jokin toinen aine<\/b><\/h4>\n<p>Seuraavaksi kaadetaan kolmanteen koeputkeen kalkkivett\u00e4 ja ravistetaan. Tulos&#8230; mit\u00e4\u00e4n ei tapahdu, kalkkivesi pysyy kirkkaana.<\/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=\"Kalkkivesi ei muutu\" 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>T\u00e4m\u00e4 ei ole ep\u00e4onnistuminen. Kalkkivett\u00e4 k\u00e4ytet\u00e4\u00e4n <b>hiilidioksidin<\/b> tunnistamiseen. Se, ettei vesi samennu, todistaa, ett\u00e4 &#8220;<b>syntynyt kaasu ei ole hiilidioksidia<\/b>&#8220;. T\u00e4m\u00e4 on my\u00f6s t\u00e4rke\u00e4 osa kokeen tulosta.<\/p>\n<h3>Turvallinen siivous<\/h3>\n<p>Mangaanidioksidi on katalyytti, joten se j\u00e4\u00e4 j\u00e4ljelle kokeen j\u00e4lkeen. \u00c4l\u00e4 kaada sit\u00e4 suoraan viem\u00e4riin tukosten v\u00e4ltt\u00e4miseksi, vaan kaada se ensin siivil\u00e4n l\u00e4pi ja pese sitten koeputki.<\/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=\"Mangaanidioksidin siivous\" 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>T\u00e4ss\u00e4 on my\u00f6s hyv\u00e4 tilaisuus oppia koeputkiharjan oikeaoppinen k\u00e4ytt\u00f6.<\/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=\"Koeputken peseminen\" 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>N\u00e4ill\u00e4 vinkeill\u00e4 koe onnistuu sujuvasti noin 50 minuutin oppitunnin aikana. Seuraavaksi haasteena ovat hiilidioksidin ja vedyn valmistuskokeet!<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"TYWCjOM4iW\"><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=\"&#8221;\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&#8221; &#8212; \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=41854&#038;embed=true#?secret=Ib6u6hTuQo#?secret=TYWCjOM4iW\" data-secret=\"TYWCjOM4iW\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<h3>Yhteydenotot ja tiedustelut<\/h3>\n<p>Tuo tieteen ihmeet ja hauskuus l\u00e4hemm\u00e4s! Olen koonnut helposti ymm\u00e4rrett\u00e4vi\u00e4 ja hauskoja tiedekokeita, joita voit tehd\u00e4 kotona, sek\u00e4 vinkkej\u00e4 niiden onnistumiseen. Kokeile etsi\u00e4 erilaisia aiheita!<br \/>\n\u30fbTiedevihkoni sis\u00e4lt\u00f6 on nyt julkaistu kirjana. Lis\u00e4tietoja <a href=\"https:\/\/amzn.to\/42PMCEL\">t\u00e4\u00e4lt\u00e4<\/a>.<br \/>\n\u30fbLis\u00e4tietoa minusta, Ken Kuwakosta, l\u00f6yd\u00e4t <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">t\u00e4\u00e4lt\u00e4<\/a>.<br \/>\n\u30fbErilaiset pyynn\u00f6t (kirjoittaminen, luennot, tiedekerhot, TV-konsultointi, esiintymiset jne.) voi l\u00e4hett\u00e4\u00e4 <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a>.<br \/>\n<span class=\"s2\">\u30fbPysy ajan tasalla uusista artikkeleista seuraamalla minua <a href=\"https:\/\/x.com\/kuwako\">X:ss\u00e4<\/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\">Tiedekanavallani<\/a> julkaisen videoita kokeista!<\/p>\n<h3>\uff14\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<ul>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?p=46937&amp;\">\u5149\u306e\u9b54\u6cd5CMY\u30a6\u30a9\u30fc\u30bf\u30fc\u30ad\u30e5\u30fc\u30d6<\/a>\uff1a\u5149\u306e\u9b54\u6cd5\u3092\u4f53\u9a13\u305b\u3088\uff01\u6c34\u3092\u6ce8\u3050\u3068\u65b0\u305f\u306a\u7acb\u65b9\u4f53\u304c\u51fa\u73fe\u3059\u308b\u9b54\u6cd5\u306e\u3088\u3046\u306a\u5b9f\u9a13\u3067\u3059\u3002<\/li>\r\n<\/ul>\r\n<img class=\"alignnone wp-image-47312 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c.jpg\" sizes=\"auto, (max-width: 267px) 100vw, 267px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c.jpg 1292w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c-272x300.jpg 272w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c-928x1024.jpg 928w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/12\/71274840332ac4ee4620fb1475a1d79c-768x848.jpg 768w\" alt=\"\" width=\"267\" height=\"294\" \/>\r\n<h3 style=\"text-align: left;\"><span style=\"font-size: medium;\"><b><strong>\u30c6\u30ec\u30d3\u756a\u7d44\u30fb\u79d1\u5b66\u76e3\u4fee\u7b49\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n \t<li>4\u67089\u65e5\uff08\u6728\uff09\u300cTHE\u7a81\u7834\u30d5\u30a1\u30a4\u30eb\u300d\uff08\u65e5\u672c\u30c6\u30ec\u30d3 \uff09\u306e\u79d1\u5b66\u76e3\u4fee\u3092\u884c\u3044\u307e\u3057\u305f\u3002\u591c7\u6642\u301c\u3068\u306a\u308a\u307e\u3059\u3002<\/li>\r\n<\/ul>\r\n<h3><span style=\"font-size: medium;\"><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?p=61585\">\u30b5\u30af\u30bb\u30b915 \uff14\u6708\u53f7<\/a>\u306b\u3066\u3001\u91ce\u7403\u306e\u79d1\u5b66\u306b\u3064\u3044\u3066\u8a18\u4e8b\u3092\u57f7\u7b46\u3057\u307e\u3057\u305f\uff082026\/3\uff09<\/li>\r\n \t<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\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\" \/>\r\n<\/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=\"font-size: medium;\"><b>\u8b1b\u5e2b\u30fb\u30b7\u30e7\u30fc\u30fb\u7814\u7a76\u7b49\u306e\u304a\u77e5\u3089\u305b<\/b><\/span><\/h3>\r\n<ul>\r\n \t<li>3\/20\uff08\u91d1\uff09\u3000\u65e5\u672c\u7406\u79d1\u6559\u80b2\u5b66\u4f1a\u30aa\u30f3\u30e9\u30a4\u30f3\u5168\u56fd\u5927\u4f1a2026\u300c<a href=\"https:\/\/phys-edu.net\/wp\/?p=60439\">\u6163\u6027\u306e\u6cd5\u5247\u306e\u6982\u5ff5\u5f62\u6210\u3092\u76ee\u6307\u3057\u305f\u63a2\u7a76\u7684\u306a\u5b66\u3073\u306e\u5b9f\u8df5\u300d<\/a>\u306b\u3064\u3044\u3066\u767a\u8868\u3057\u307e\u3057\u305f\u3002<\/li>\r\n \t<li>6\/14\uff08\u65e5\uff09\u3000\u5343\u8449\u5927\u5b66\u30a4\u30f3\u30b9\u30bf\u30ec\u30fc\u30b7\u30e7\u30f3\u300c\u63a2\u7a76\u300d\u306b\u3066\u8b1b\u5e2b\u3092\u52d9\u3081\u307e\u3059<\/li>\r\n \t<li>7\/18\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 \t<li>10\/10\uff08\u571f\uff09\u3000\u79d8\u5bc6\u5175\u5668\u300c\u5e2f\u96fb\u30ac\u30f3\u300d\u304c\u70b8\u88c2\uff01\u30d3\u30ea\u30d3\u30ea\uff01\u30c9\u30ad\u30c9\u30ad\uff01\u9759\u96fb\u6c17\u30b5\u30a4\u30a8\u30f3\u30b9\u30b7\u30e7\u30fc\uff20\u5343\u8449\u5e02\u79d1\u5b66\u30d5\u30a7\u30b9\u30bf\uff08\u5348\u5f8c\u4e88\u5b9a\uff09<\/li>\r\n \t<li><span style=\"text-align: center;\">\u5404\u7a2eSNS\u3000<\/span><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><span style=\"text-align: center;\">\uff0f<\/span><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><\/li>\r\n<\/ul>\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>\r\n<ul class=\"wp-block-latest-posts__list is-grid columns-3 has-dates wp-block-latest-posts\"><li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62482&#038;lang=fi\" aria-label=\"Lehtien alla piilev\u00e4t salaiset suut? Kuvaa huikean tarkat ilmaraot puhelimellasi (Tradescantia-opas)\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/06\/d74b1048f13474fca8a10719dd33928c-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=62482&#038;lang=fi\">Lehtien alla piilev\u00e4t salaiset suut? Kuvaa huikean tarkat ilmaraot puhelimellasi (Tradescantia-opas)<\/a><time datetime=\"2026-04-18T04:39:12+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670818\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62478&#038;lang=es\" aria-label=\"\u00bfBocas secretas bajo las hojas? Captura estomas con una claridad asombrosa usando tu smartphone (Gu\u00eda con Tradescantia)\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/06\/d74b1048f13474fca8a10719dd33928c-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=62478&#038;lang=es\">\u00bfBocas secretas bajo las hojas? Captura estomas con una claridad asombrosa usando tu smartphone (Gu\u00eda con Tradescantia)<\/a><time datetime=\"2026-04-18T04:38:38+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670818\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=33876\" aria-label=\"\u6559\u79d1\u66f8\u3092\u8d85\u3048\u305f\u767a\u898b\u3092\uff01Geogebra\u3067\u6311\u3080\u3001\u30ef\u30af\u30ef\u30af\u304c\u6b62\u307e\u3089\u306a\u3044\u6ce2\u306e\u5e72\u6e09\u5b9f\u9a13\u5ba4\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/11\/666a58754ac42cef39da2d08429391b3-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=33876\">\u6559\u79d1\u66f8\u3092\u8d85\u3048\u305f\u767a\u898b\u3092\uff01Geogebra\u3067\u6311\u3080\u3001\u30ef\u30af\u30ef\u30af\u304c\u6b62\u307e\u3089\u306a\u3044\u6ce2\u306e\u5e72\u6e09\u5b9f\u9a13\u5ba4<\/a><time datetime=\"2026-04-18T04:38:28+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670818\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62474&#038;lang=hi\" aria-label=\"\u092a\u0924\u094d\u0924\u093f\u092f\u094b\u0902 \u0915\u0947 \u092a\u0940\u091b\u0947 \u091b\u093f\u092a\u0947 \u0917\u0941\u092a\u094d\u0924 \u092e\u0941\u0901\u0939? \u0938\u094d\u092e\u093e\u0930\u094d\u091f\u092b\u094b\u0928 \u0938\u0947 \u0932\u0947\u0902 \u0939\u0948\u0930\u0924\u0905\u0902\u0917\u0947\u091c\u093c \u0938\u094d\u092a\u0937\u094d\u091f \u0930\u0902\u0927\u094d\u0930\u094b\u0902 \u0915\u0940 \u0924\u0938\u094d\u0935\u0940\u0930\u0947\u0902 (\u091f\u094d\u0930\u0947\u0921\u0947\u0938\u094d\u0915\u0948\u0928\u094d\u091f\u093f\u092f\u093e \u0917\u093e\u0907\u0921)\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/06\/d74b1048f13474fca8a10719dd33928c-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=62474&#038;lang=hi\">\u092a\u0924\u094d\u0924\u093f\u092f\u094b\u0902 \u0915\u0947 \u092a\u0940\u091b\u0947 \u091b\u093f\u092a\u0947 \u0917\u0941\u092a\u094d\u0924 \u092e\u0941\u0901\u0939? \u0938\u094d\u092e\u093e\u0930\u094d\u091f\u092b\u094b\u0928 \u0938\u0947 \u0932\u0947\u0902 \u0939\u0948\u0930\u0924\u0905\u0902\u0917\u0947\u091c\u093c \u0938\u094d\u092a\u0937\u094d\u091f \u0930\u0902\u0927\u094d\u0930\u094b\u0902 \u0915\u0940 \u0924\u0938\u094d\u0935\u0940\u0930\u0947\u0902 (\u091f\u094d\u0930\u0947\u0921\u0947\u0938\u094d\u0915\u0948\u0928\u094d\u091f\u093f\u092f\u093e \u0917\u093e\u0907\u0921)<\/a><time datetime=\"2026-04-18T04:38:11+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670818\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62472&#038;lang=zh\" aria-label=\"\u8449\u5b50\u80cc\u5f8c\u85cf\u8457\u795e\u7955\u7684\u5634\u5df4\uff1f\u7528\u624b\u6a5f\u62cd\u51fa\u8d85\u6e05\u6670\u6c23\u5b54\u89c0\u5bdf\u6307\u5357\uff08\u7d2b\u9732\u8349\uff09\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/06\/d74b1048f13474fca8a10719dd33928c-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-post-image\" alt=\"\" style=\"\" \/><\/a><\/div><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/phys-edu.net\/wp\/?p=62472&#038;lang=zh\">\u8449\u5b50\u80cc\u5f8c\u85cf\u8457\u795e\u7955\u7684\u5634\u5df4\uff1f\u7528\u624b\u6a5f\u62cd\u51fa\u8d85\u6e05\u6670\u6c23\u5b54\u89c0\u5bdf\u6307\u5357\uff08\u7d2b\u9732\u8349\uff09<\/a><time datetime=\"2026-04-18T04:37:47+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670818\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62470&#038;lang=ko\" aria-label=\"\uc78e \ub4b7\uba74\uc5d0 \uc228\uaca8\uc9c4 \ube44\ubc00\uc758 \uc785? 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