{"id":54745,"date":"2025-10-21T04:57:04","date_gmt":"2025-10-20T19:57:04","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=54745"},"modified":"2025-10-21T04:57:04","modified_gmt":"2025-10-20T19:57:04","slug":"lyijytaytekynan-grafiitti-elektroidina-seuraa-kemiallisia-muutoksia-kupariiikloridin-sahkolyysissa-ekologista-mikrokokeilua","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=54745&lang=fi","title":{"rendered":"Lyijyt\u00e4ytekyn\u00e4n grafiitti elektroidina!? Seuraa kemiallisia muutoksia \u201ckupari(II)kloridin s\u00e4hk\u00f6lyysiss\u00e4\u201d (ekologista mikrokokeilua!)"},"content":{"rendered":"<p style=\"text-align: center;\"><strong style=\"color: #339966;\">Olen Ken Kuwako, tiedekouluttaja. Joka p\u00e4iv\u00e4 on koe.<\/strong><\/p>\n<p>Mit\u00e4 teille tulee mieleen, kun puhutaan luonnontieteen kokeista? Ehk\u00e4 ajattelette riveitt\u00e4in aseteltuja dekantterilaseja ja erlenmeyerpulloja, sek\u00e4 monia vaikean n\u00e4k\u00f6isi\u00e4 kemikaaleja&#8230; Mutta itse asiassa on olemassa tapa, jolla p\u00e4\u00e4st\u00e4\u00e4n tieteen ytimeen helpommin ja ymp\u00e4rist\u00f6yst\u00e4v\u00e4llisemmin.<\/p>\n<p>T\u00e4n\u00e4\u00e4n esittelen teille yl\u00e4koulun luonnontieteist\u00e4 tutun ilmi\u00f6n, kupari(II)kloridin elektrolyysin, joka suoritetaan k\u00e4ytt\u00e4m\u00e4ll\u00e4 h\u00e4mm\u00e4stytt\u00e4v\u00e4n pient\u00e4 koev\u00e4linett\u00e4 ( #mikrolevy ) \u2013 t\u00e4m\u00e4 on #mikroskaalakoe. T\u00e4m\u00e4 ei ole vain s\u00e4hk\u00f6n johtamista. Kaunis sininen liuos muuttuu &#8220;l\u00e4pin\u00e4kyv\u00e4ksi&#8221;, ja esiin tulee &#8220;metalli&#8221;, jota ei pit\u00e4isi n\u00e4ky\u00e4&#8230; Voit seurata t\u00e4t\u00e4 maagista kemiallista muutosta aivan silmiesi edess\u00e4!<\/p>\n<h3>Pienen laboratorion, &#8220;mikroskaalan&#8221;, vieh\u00e4tys<\/h3>\n<p>Tekem\u00e4mme #mikroskaalakoe on menetelm\u00e4, jota k\u00e4ytettiin jo koulussa, jossa olin aiemmin t\u00f6iss\u00e4. Koska kemikaalien ja veden m\u00e4\u00e4r\u00e4 pidet\u00e4\u00e4n minimiss\u00e4, kokeen j\u00e4lkeen syntyv\u00e4n &#8220;j\u00e4tenesteen&#8221; m\u00e4\u00e4r\u00e4\u00e4 voidaan v\u00e4hent\u00e4\u00e4 dramaattisesti. Suurin etu on se, ett\u00e4 kokeesta nauttiminen on turvallista, ja valmistelevat toimet sek\u00e4 siivoaminen ovat helppoja, samalla kun huomioidaan ymp\u00e4rist\u00f6\u00e4.<\/p>\n<p>Juuri pienen skaalan takia muutokset ilmestyv\u00e4t nopeasti, mik\u00e4 tekee niist\u00e4 t\u00e4ydellisi\u00e4 havainnointiin. Jos haluat tiet\u00e4\u00e4 enemm\u00e4n mikroskaalakokeista, tutustu t\u00e4h\u00e4n artikkeliin. Siin\u00e4 kerrotaan yksityiskohtaisesti kokeesta ja siit\u00e4, kuinka kuparikloridiliuos valmistetaan.<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/natsci.kyokyo-u.ac.jp\/~rigaku\/forum\/8gou\/bando.pdf\">T\u00e4st\u00e4 artikkelista l\u00f6ytyy yksityiskohtaista tietoa mikroskaalakokeista<\/a><\/p>\n<p>T\u00e4ss\u00e4 on kuva todellisesta kokeesta. Katso ensin video!<\/p>\n<p><iframe loading=\"lazy\" title=\"\u30b7\u30e3\u30fc\u82af\u3067\u5869\u5316\u9285\u306e\u96fb\u6c17\u5206\u89e3\uff01\u6fc3\u5ea6\u8abf\u6574\u30fb\u30de\u30a4\u30af\u30ed\u30b9\u30b1\u30fc\u30eb\u5b9f\u9a13\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/pXVSWsXLMNU?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>Kokeen valmistelu ja &#8220;ahaa!&#8221;-niksit<\/h3>\n<p>Kokeessa k\u00e4ytett\u00e4v\u00e4 kupari(II)kloridiliuos on sinist\u00e4 nestett\u00e4. Luonnontieteellisiss\u00e4 kokeissa kemikaalit valmistetaan laskemalla tarkasti niiden pitoisuus.<\/p>\n<p style=\"padding-left: 40px;\">\u301010 % kupari(II)klorididihydraattiliuoksen valmistusmenetelm\u00e4\u3011<\/p>\n<p style=\"padding-left: 40px;\">Kupari(II)klorididihydraatti CuCl2\u30fb2H2O Kaava massa = 170.48<\/p>\n<p style=\"padding-left: 40px;\">Kun valmistetaan 10 % liuos, punnitaan m\u00e4\u00e4r\u00e4, joka vastaa 10 g ilman hydraattivett\u00e4. Koska CuCl2 = 63.5 + 35 \u00d7 2 = 133.5 ja 2H2O = 2 \u00d7 18 = 36,<\/p>\n<p style=\"padding-left: 40px;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41292 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/52dd7a8ed2a2e3ed86ea5167ac7a07ec.jpg\" alt=\"\" width=\"183\" height=\"58\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/52dd7a8ed2a2e3ed86ea5167ac7a07ec.jpg 340w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/52dd7a8ed2a2e3ed86ea5167ac7a07ec-300x95.jpg 300w\" sizes=\"auto, (max-width: 183px) 100vw, 183px\" \/><\/p>\n<p style=\"padding-left: 40px;\">Siksi lis\u00e4t\u00e4\u00e4n 13 g kupari(II)klorididihydraattikiteit\u00e4 veteen, jotta liuos painaa 100 g.<\/p>\n<p>T\u00e4ss\u00e4 tuli esiin hieman erikoislaskentaa, joka on tarpeen, kun liuoksessa on &#8220;hydraattivett\u00e4&#8221; (kiteeseen sitoutunutta vett\u00e4). Onneksi, t\u00e4h\u00e4n kokeeseen kuparikloridin pitoisuus voi olla matalampikin (3 prosenttia on riitt\u00e4v\u00e4). Artikkelissa puhutaan 4 cm\u00b3 per solu (koekolo), mutta vertailun vuoksi valmistin my\u00f6s 1 cm\u00b3 liuoksen.<\/p>\n<p>Muuten, jos koulu suorittaisi kokeen 10 ryhm\u00e4ss\u00e4 (4 hengen ryhm\u00e4t, eli 40 oppilasta), tarvittaisiin vain 1 ryhm\u00e4annos (4 cm\u00b3) \u00d7 10 = 40 cm\u00b3. Nelj\u00e4lle luokalle yhteens\u00e4 tarvittaisiin vain 160 cm\u00b3 (noin 1\/6 maitopurkista). Aika ekologista, eik\u00f6?<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-44117 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/0690da9d24e2c9b38520409a8e856343.jpg\" alt=\"\" width=\"293\" height=\"427\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/0690da9d24e2c9b38520409a8e856343.jpg 832w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/0690da9d24e2c9b38520409a8e856343-206x300.jpg 206w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/0690da9d24e2c9b38520409a8e856343-702x1024.jpg 702w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/0690da9d24e2c9b38520409a8e856343-768x1121.jpg 768w\" sizes=\"auto, (max-width: 293px) 100vw, 293px\" \/><\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-44118\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/d9ebc870039c489df9cca78bab7343df.jpg\" alt=\"\" width=\"400\" height=\"377\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/d9ebc870039c489df9cca78bab7343df.jpg 960w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/d9ebc870039c489df9cca78bab7343df-300x283.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/d9ebc870039c489df9cca78bab7343df-768x723.jpg 768w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-44119\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/95f73ad0d1092f6cab2764c011cba0ca.jpg\" alt=\"\" width=\"386\" height=\"448\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/95f73ad0d1092f6cab2764c011cba0ca.jpg 1078w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/95f73ad0d1092f6cab2764c011cba0ca-258x300.jpg 258w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/95f73ad0d1092f6cab2764c011cba0ca-882x1024.jpg 882w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/95f73ad0d1092f6cab2764c011cba0ca-768x892.jpg 768w\" sizes=\"auto, (max-width: 386px) 100vw, 386px\" \/><\/p>\n<p>(Valmistin t\u00e4ll\u00e4 kertaa hieman enemm\u00e4n, koska halusin suorittaa my\u00f6s vertailukokeita)<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41309 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/e5cd684ec3b3da62522a443124fc2e5e.jpg\" alt=\"\" width=\"292\" height=\"325\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/e5cd684ec3b3da62522a443124fc2e5e.jpg 712w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/e5cd684ec3b3da62522a443124fc2e5e-270x300.jpg 270w\" sizes=\"auto, (max-width: 292px) 100vw, 292px\" \/><\/p>\n<h4>Koej\u00e4rjestely ja turvallisuusniksit<\/h4>\n<p>Kokeen suorittaminen on yksinkertaista.<\/p>\n<ol>\n<li>Laita kupari(II)klorididihydraattiliuos soluun.<\/li>\n<li>Aseta hiilisauvaelektrodit paikalleen ja sy\u00f6t\u00e4 5V tasaj\u00e4nnite.<\/li>\n<li>Tarkkaile muutoksia anodilla (+napa) ja katodilla (-napa).<\/li>\n<li>Tutki anodilla ja katodilla syntyneit\u00e4 aineita.<\/li>\n<\/ol>\n<p>T\u00e4ss\u00e4 on mielenkiintoinen kikka. Elektrodina k\u00e4ytett\u00e4v\u00e4 hiilisauva voidaan korvata niinkin erikoisella asialla kuin paksulla 2 mm:n lyijyt\u00e4ytekyn\u00e4n lyijyll\u00e4!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41293 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/6c7b55f4ac94ded0bf81906a1a352449.jpg\" alt=\"\" width=\"297\" height=\"263\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/6c7b55f4ac94ded0bf81906a1a352449.jpg 870w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/6c7b55f4ac94ded0bf81906a1a352449-300x266.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/6c7b55f4ac94ded0bf81906a1a352449-768x680.jpg 768w\" sizes=\"auto, (max-width: 297px) 100vw, 297px\" \/><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/amzn.to\/3BOoZSI\">2 mm:n lyijyt\u00e4ytekyn\u00e4n lyijyt<\/a><\/p>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>\n<div style=\"border: 1px solid #95a5a6; border-radius: .75rem; background-color: #ffffff; width: 504px; margin: 0px; padding: 5px; text-align: center; overflow: hidden;\">\n<table>\n<tbody>\n<tr>\n<td style=\"width: 240px;\"><a style=\"word-wrap: break-word;\" href=\"https:\/\/hb.afl.rakuten.co.jp\/ichiba\/2c4b1d07.ce019e28.2c4b1d08.6132124d\/?pc=https%3A%2F%2Fitem.rakuten.co.jp%2Farde%2F5312487%2F&amp;link_type=picttext&amp;ut=eyJwYWdlIjoiaXRlbSIsInR5cGUiOiJwaWN0dGV4dCIsInNpemUiOiIyNDB4MjQwIiwibmFtIjoxLCJuYW1wIjoicmlnaHQiLCJjb20iOjEsImNvbXAiOiJkb3duIiwicHJpY2UiOjEsImJvciIoxLCJjb20iOjEsImJiY24iOjEsInByb2QiOjAsImFtcCI6ZmFsc2V9\" target=\"_blank\" rel=\"nofollow sponsored noopener\"><img decoding=\"async\" style=\"margin: 2px;\" title=\"[\u5546\u54c1\u4fa1\u683c\u306b\u95a2\u3057\u307e\u3057\u3066\u306f\u3001\u30ea\u30f3\u30af\u304c\u4f5c\u6210\u3055\u308c\u305f\u6642\u70b9\u3068\u73fe\u6642\u70b9\u3067\u60c5\u5831\u304c\u5909\u66f4\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u304c\u3054\u3056\u3044\u307e\u3059\u3002]\" src=\"https:\/\/hbb.afl.rakuten.co.jp\/hgb\/2c4b1d07.ce019e28.2c4b1d08.6132124d\/?me_id=1208593&amp;item_id=10346879&amp;pc=https%3A%2F%2Fthumbnail.image.rakuten.co.jp%2F%400_mall%2Farde%2Fcabinet%2Fitem654%2F5312487_1.jpg%3F_ex%3D240x240&amp;s=240x240&amp;t=picttext\" alt=\"[\u5546\u54c1\u4fa1\u683c\u306b\u95a2\u3057\u307ese\u306f\u3001\u30ea\u30f3\u30af\u304c\u4f5c\u6210\u3055\u308c\u305f\u6642\u70b9\u3068\u73fe\u6642\u70b9\u3067\u60c5\u5831\u304c\u5909\u66f4\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u304c\u3054\u3056\u3044\u307e\u3059\u3002]\" border=\"0\" \/><\/a><\/td>\n<td style=\"vertical-align: top; width: 248px;\">\n<p style=\"font-size: 12px; line-height: 1.4em; text-align: left; margin: 0px; padding: 2px 6px; word-wrap: break-word;\"><a style=\"word-wrap: break-word;\" href=\"https:\/\/hb.afl.rakuten.co.jp\/ichiba\/2c4b1d07.ce019e28.2c4b1d08.6132124d\/?pc=https%3A%2F%2Fitem.rakuten.co.jp%2Farde%2F5312487%2F&amp;link_type=picttext&amp;ut=eyJwYWdlIjoiaXRlbSIsInR5cGUiOiJwaWN0dGV4dCIsInNpemUiOiIyNDB4MjQwIiwibmFtIjoxLCJuYW1wIjoicmlnaHQiLCJjb20iOjEsImNvbXAiOiJkb3duIiwicHJpY2UiOjEsImJvciI6MSwiY29sIjoxLCJiYnRuIjoxLCJwcm9kIjowLCJhbXAiOmZhbHNlfQ%3D%3D\" target=\"_blank\" rel=\"nofollow sponsored noopener\">\u30ce\u30c3\u30af\u5f0f\u925b\u7b46\u66ff\u82af 2B 2mm 12\u672c\u5165 \u305f\u304f\u307f 7787<\/a> Hinta: 442 jeni\u00e4 (sis. verot, ei sis. toimituskuluja) <span style=\"color: #bbb;\">(Tilanne 2022\/10\/16)<\/span><\/p>\n<div style=\"margin: 10px;\">\n<p><a style=\"word-wrap: break-word;\" href=\"https:\/\/hb.afl.rakuten.co.jp\/ichiba\/2c4b1d07.ce019e28.2c4b1d08.6132124d\/?pc=https%3A%2F%2Fitem.rakuten.co.jp%2Farde%2F5312487%2F&amp;link_type=picttext&amp;ut=eyJwYWdlIjoiaXRlbSIsInR5cGUiOiJwaWN0dGV4dCIsInNpemUiOiIyNDB4MjQwIiwibmFtIjoxLCJuYW1wIjoicmlnaHQiLCJjb20iOjEsImNvbXAiOiJkb3duIiwicHJpY2UiOjEsImJvciI6MSwiY29sIjoxLCJiYnRuIjoxLCJwcm9kIjowLCJhbXAiOmZhbHNlfQ%3D%3D\" target=\"_blank\" rel=\"nofollow sponsored noopener\"><img decoding=\"async\" style=\"float: left; max-height: 27px; width: auto; margin-top: 0;\" src=\"https:\/\/static.affiliate.rakuten.co.jp\/makelink\/rl.svg\" \/><\/a><\/p>\n<div style=\"float: right; width: 41%; height: 27px; background-color: #bf0000; color: #fff!important; font-size: 12px; font-weight: 500; line-height: 27px; margin-left: 1px; padding: 0 12px; border-radius: 16px; cursor: pointer; text-align: center;\">Osta Rakutenista<\/div>\n<p>&nbsp;<\/p>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>&nbsp;<\/p>\n<p style=\"color: #000000; font-size: 12px; line-height: 1.4em; margin: 5px; word-wrap: break-word;\">\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Lyijyt\u00e4ytekyn\u00e4n lyijy on valmistettu samasta aineesta kuin lyijykyn\u00e4n lyijy \u2013 hiilest\u00e4, ja se johtaa s\u00e4hk\u00f6\u00e4 hyvin.<\/p>\n<p>T\u00e4rke\u00e4\u00e4 t\u00e4ss\u00e4 on kuitenkin &#8220;oikosulun est\u00e4minen&#8221;. Jos positiivinen ja negatiivinen napa koskettavat toisiaan liuoksessa, s\u00e4hk\u00f6 kulkee elektrodien v\u00e4lill\u00e4 suoraan (oikosulku), eik\u00e4 elektrolyysi\u00e4 voida suorittaa oikein. Se on eritt\u00e4in vaarallista. Siksi tein pienist\u00e4 styroksin palasista jalustan elektrodien kiinnitt\u00e4miseksi.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-44131 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/f92ed53707fff2924cb5ac7f7e3ac5be.jpg\" alt=\"\" width=\"402\" height=\"407\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/f92ed53707fff2924cb5ac7f7e3ac5be.jpg 994w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/f92ed53707fff2924cb5ac7f7e3ac5be-296x300.jpg 296w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/f92ed53707fff2924cb5ac7f7e3ac5be-768x777.jpg 768w\" sizes=\"auto, (max-width: 402px) 100vw, 402px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41315 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/e3acb7e3e288337e0fd995c4814034ad.jpg\" alt=\"\" width=\"556\" height=\"458\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/e3acb7e3e288337e0fd995c4814034ad.jpg 1112w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/e3acb7e3e288337e0fd995c4814034ad-300x247.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/e3acb7e3e288337e0fd995c4814034ad-1024x844.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/e3acb7e3e288337e0fd995c4814034ad-768x633.jpg 768w\" sizes=\"auto, (max-width: 556px) 100vw, 556px\" \/><\/p>\n<p>Vaikka styroksia ei olisi, on t\u00e4rke\u00e4\u00e4 avata elektrodit &#8220;kahdeksikon muotoon&#8221; ja varoa ehdottomasti, etteiv\u00e4t ne kosketa toisiaan.<\/p>\n<div id=\"attachment_46711\" style=\"width: 385px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-46711\" class=\" wp-image-46711\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/5cfb22c05e9bbf8f280f71bc05c90e72.jpg\" alt=\"\" width=\"375\" height=\"507\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/5cfb22c05e9bbf8f280f71bc05c90e72.jpg 914w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/5cfb22c05e9bbf8f280f71bc05c90e72-222x300.jpg 222w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/5cfb22c05e9bbf8f280f71bc05c90e72-758x1024.jpg 758w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/5cfb22c05e9bbf8f280f71bc05c90e72-768x1037.jpg 768w\" sizes=\"auto, (max-width: 375px) 100vw, 375px\" \/><p id=\"caption-attachment-46711\" class=\"wp-caption-text\">Kahdeksikko on avainasemassa<\/p><\/div>\n<p>Piiri j\u00e4rjestettiin t\u00e4ll\u00e4 tavalla, jotta kaksi koetta voidaan suorittaa samanaikaisesti yhdest\u00e4 virtal\u00e4hteest\u00e4. J\u00e4nnite on 5 V.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-44132 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/61e4bc18b7cfc8e604bbfa5197c1c7b3.png\" alt=\"\" width=\"456\" height=\"445\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/61e4bc18b7cfc8e604bbfa5197c1c7b3.png 1574w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/61e4bc18b7cfc8e604bbfa5197c1c7b3-300x292.png 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/61e4bc18b7cfc8e604bbfa5197c1c7b3-1024x998.png 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/61e4bc18b7cfc8e604bbfa5197c1c7b3-768x748.png 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/61e4bc18b7cfc8e604bbfa5197c1c7b3-1536x1497.png 1536w\" sizes=\"auto, (max-width: 456px) 100vw, 456px\" \/><\/p>\n<h3>Aloitetaan koe! Sininen liuos muuttuu t\u00e4ysin<\/h3>\n<p>Kiinnitet\u00e4\u00e4n elektrodit ja aloitetaan elektrolyysi!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41312 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/3e8474dc4a3caf45cf4f4174b83e1fd8.jpg\" alt=\"\" width=\"561\" height=\"429\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/3e8474dc4a3caf45cf4f4174b83e1fd8.jpg 1254w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/3e8474dc4a3caf45cf4f4174b83e1fd8-300x229.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/3e8474dc4a3caf45cf4f4174b83e1fd8-1024x782.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/3e8474dc4a3caf45cf4f4174b83e1fd8-768x587.jpg 768w\" sizes=\"auto, (max-width: 561px) 100vw, 561px\" \/><\/p>\n<p>Kun liuosta tarkkailee tiiviisti&#8230; muutos on havaittavissa heti. Katodille (\u2013napa) alkaa ker\u00e4\u00e4nty\u00e4 ruskehtavaa ainetta. Ja anodilla (+napa) alkaa muodostua pieni\u00e4 kuplia.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-44133 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/49b2fb2abbb9af9370fd13e6b4fc0789.png\" alt=\"\" width=\"346\" height=\"377\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/49b2fb2abbb9af9370fd13e6b4fc0789.png 968w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/49b2fb2abbb9af9370fd13e6b4fc0789-275x300.png 275w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/49b2fb2abbb9af9370fd13e6b4fc0789-939x1024.png 939w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/49b2fb2abbb9af9370fd13e6b4fc0789-768x838.png 768w\" sizes=\"auto, (max-width: 346px) 100vw, 346px\" \/><\/p>\n<p>Kun j\u00e4nnitett\u00e4 sy\u00f6tet\u00e4\u00e4n viel\u00e4 noin kymmenen minuuttia&#8230; <a href=\"https:\/\/youtu.be\/pXVSWsXLMNU\">liuoksen niin kirkas sininen v\u00e4ri on kadonnut kokonaan ja muuttunut l\u00e4pin\u00e4kyv\u00e4ksi!<\/a> (*Voit k\u00e4ytt\u00e4\u00e4 noin 9 V j\u00e4nnitett\u00e4 ajan lyhent\u00e4miseksi, mutta silloin on oltava viel\u00e4 varovaisempi oikosulun suhteen!)<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41323 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/25f1400e219c940a248e2f8a330a9525.jpg\" alt=\"\" width=\"566\" height=\"509\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/25f1400e219c940a248e2f8a330a9525.jpg 1112w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/25f1400e219c940a248e2f8a330a9525-300x270.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/25f1400e219c940a248e2f8a330a9525-1024x921.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/25f1400e219c940a248e2f8a330a9525-768x691.jpg 768w\" sizes=\"auto, (max-width: 566px) 100vw, 566px\" \/><\/p>\n<h3>Mysteeri ratkeaa: Kadonneen &#8220;sinisen&#8221; ja ilmestyneiden &#8220;kuplien&#8221; todellinen luonne<\/h3>\n<p>Jatketaan t\u00e4m\u00e4n kummallisen muutoksen syyn selvitt\u00e4mist\u00e4. Ensinn\u00e4kin, liuoksen &#8220;sininen v\u00e4ri&#8221; johtuu kupari-ioneista (Cu<sup>2+<\/sup>). Kun kupari(II)kloridi (CuCl<sub>2<\/sub>) liukenee veteen, se hajoaa kupari-ioneiksi (Cu<sup>2+<\/sup>) ja kloridi-ioneiksi (Cl<sup>&#8211;<\/sup>).<\/p>\n<p>\u3010Muutos katodilla (\u2013napa)\u3011<\/p>\n<p>Katodille (\u2013napa) hakeutuu positiivisesti varautunut kupari-ioni (Cu<sup>2+<\/sup>). Se vastaanottaa virtal\u00e4hteest\u00e4 tulevan elektronin (e<sup>&#8211;<\/sup>) ja muuttuu s\u00e4hk\u00f6isesti neutraaliksi kuparimetalli-atomiksi (Cu). T\u00e4m\u00e4 on se ruskea aine, joka tarttui elektrodiin! Koska siniset &#8220;kupari-ionit&#8221; muuttuivat liuoksessa yh\u00e4 enemm\u00e4n &#8220;kuparimetalliksi&#8221;, liuoksen v\u00e4ri katosi ja siit\u00e4 tuli l\u00e4pin\u00e4kyv\u00e4.<\/p>\n<p>\u3010Muutos anodilla (+napa)\u3011 Anodille (+napa) hakeutuu negatiivisesti varautunut kloridi-ioni (Cl<sup>&#8211;<\/sup>). Se menett\u00e4\u00e4 elektronin (e<sup>&#8211;<\/sup>) ja muuttuu kloorikaasuksi (Cl<sub>2<\/sub>). Ne pienet kuplat olivat siis klooria, joka tunnetaan uima-altaiden desinfiointiaineen hajusta!<\/p>\n<p>Kloorilla on &#8220;valkaiseva vaikutus&#8221;, eli se kykenee poistamaan v\u00e4rej\u00e4. Pyysin oppilaita kokeilemaan kloorin tunnistamista vapaasti. Osa ryhmist\u00e4 testasi v\u00e4rireaktion asettamalla anodin l\u00e4helle suodatinpaperin, johon oli tiputettu vesiliukoista (punaista) mustetta. Osa kasti suodatinpaperin liuokseen, ja osa laittoi viereiseen soluun vett\u00e4 ja mustetta ohjatakseen kuplat sinne. Menetelmi\u00e4 oli monia.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41324 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/58be9085756f6eb4399e4c0316dc10e1.jpg\" alt=\"\" width=\"493\" height=\"480\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/58be9085756f6eb4399e4c0316dc10e1.jpg 902w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/58be9085756f6eb4399e4c0316dc10e1-300x292.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/58be9085756f6eb4399e4c0316dc10e1-768x748.jpg 768w\" sizes=\"auto, (max-width: 493px) 100vw, 493px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41325 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/5ca98c76db87e197420a0fc8895be6a4.jpg\" alt=\"\" width=\"495\" height=\"470\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/5ca98c76db87e197420a0fc8895be6a4.jpg 744w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/5ca98c76db87e197420a0fc8895be6a4-300x285.jpg 300w\" sizes=\"auto, (max-width: 495px) 100vw, 495px\" \/><\/p>\n<p>Vesiliukoisen musteen lis\u00e4ksi huomasimme, ett\u00e4 vihre\u00e4n huomiokyn\u00e4n k\u00e4ytt\u00e4minen teki v\u00e4rimuutoksesta eritt\u00e4in selke\u00e4n! T\u00e4m\u00e4kin oli mielenkiintoinen l\u00f6yt\u00f6.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41310 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/89edaeb9717b5c7068d9e04f3c198749.jpg\" alt=\"\" width=\"457\" height=\"232\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/89edaeb9717b5c7068d9e04f3c198749.jpg 1532w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/89edaeb9717b5c7068d9e04f3c198749-300x152.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/89edaeb9717b5c7068d9e04f3c198749-1024x520.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/89edaeb9717b5c7068d9e04f3c198749-768x390.jpg 768w\" sizes=\"auto, (max-width: 457px) 100vw, 457px\" \/><\/p>\n<h3>Tieteen laajenevat yhteydet<\/h3>\n<p>Koe ei p\u00e4\u00e4ty t\u00e4h\u00e4n. Katodille (\u2013napa) tarttunutta kuparia voi hioa lusikalla suodatinpaperin p\u00e4\u00e4ll\u00e4, ja se alkaa hehkua kirkkaalla metallin kiillolla. Lis\u00e4ksi yksi ryhm\u00e4 k\u00e4ytti kaasupoltinta liuoksen ja tarttuneen kuparin polttamiseen ja tarkisti &#8220;liekin v\u00e4rireaktion&#8221;.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41337 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/41038340419b11dc7fd5d0bb32986c93.jpg\" alt=\"\" width=\"403\" height=\"354\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/41038340419b11dc7fd5d0bb32986c93.jpg 984w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/41038340419b11dc7fd5d0bb32986c93-300x264.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/41038340419b11dc7fd5d0bb32986c93-768x676.jpg 768w\" sizes=\"auto, (max-width: 403px) 100vw, 403px\" \/><\/p>\n<p>Kupari palaa liekiss\u00e4 sinivihre\u00e4ll\u00e4 v\u00e4rill\u00e4. T\u00e4m\u00e4 on sama periaate, jota k\u00e4ytet\u00e4\u00e4n ilotulitteiden v\u00e4rien luomiseen. Erilaisten menetelmien avulla varmistetaan, ett\u00e4 itse erotettu aine on todella kuparia&#8230; Se on tieteen todellinen hienous. Sen sijaan, ett\u00e4 vain muistetaan sana &#8220;elektrolyysi&#8221;, kemian mielenkiintoisuus syvenee, kun koetaan hetki, jolloin aineet muuttuvat silmien edess\u00e4, v\u00e4rit katoavat ja uusia aineita syntyy. Se on todella hauska koe, jossa tehd\u00e4\u00e4n monia l\u00f6yt\u00f6j\u00e4. Ostin my\u00f6s t\u00e4m\u00e4n kirjan mikroskaalakokeista.<\/p>\n<div id=\"attachment_46712\" style=\"width: 180px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-46712\" class=\" wp-image-46712\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/a9c277283f3802d5c97492c1b1d64306.jpg\" alt=\"\" width=\"170\" height=\"167\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/a9c277283f3802d5c97492c1b1d64306.jpg 452w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/11\/a9c277283f3802d5c97492c1b1d64306-300x295.jpg 300w\" sizes=\"auto, (max-width: 170px) 100vw, 170px\" \/><p id=\"caption-attachment-46712\" class=\"wp-caption-text\"><a href=\"https:\/\/amzn.to\/4dSu0qu\">Mikroskaalakokeet: Ymp\u00e4rist\u00f6yst\u00e4v\u00e4lliset luonnontiedekokeet<\/a><\/p><\/div>\n<h3>Tiedustelut ja pyynn\u00f6t<\/h3>\n<p>Tuo tieteen ihmeet ja mielenkiintoisuus l\u00e4hemm\u00e4ksi! Olen koonnut selke\u00e4sti hauskoja kokeita, jotka voi tehd\u00e4 kotona, ja vinkkej\u00e4 niiden suorittamiseen. Kokeile hakea lis\u00e4\u00e4! \u30fbTietoa yll\u00e4pit\u00e4j\u00e4 Ken Kuwakosta l\u00f6ytyy <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">t\u00e4\u00e4lt\u00e4<\/a> \u30fbErilaiset pyynn\u00f6t (kirjoittaminen, luennot, kokeelliset luokat, TV-konsultaatiot, esiintymiset jne.) <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a> <span class=\"s2\">\u30fbArtikkelip\u00e4ivitykset l\u00e4hetet\u00e4\u00e4n <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\">Tieteen Aiheiden Kanava<\/a> julkaisee koevideoita!<\/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=62767&#038;lang=es\" aria-label=\"\u00a1Tu clase convertida en un laberinto de luz! El rastro del l\u00e1ser entre la niebla es simplemente espectacular.\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-04-24-18.07.54-150x150.jpeg\" 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=62767&#038;lang=es\">\u00a1Tu clase convertida en un laberinto de luz! El rastro del l\u00e1ser entre la niebla es simplemente espectacular.<\/a><time datetime=\"2026-04-25T05:18:22+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670825\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62765&#038;lang=fi\" aria-label=\"Luokkahuone muuttuu valon labyrintiksi! Laserin ja sumun luoma \u201dvalon j\u00e4lki\u201d on h\u00e4ik\u00e4isev\u00e4n kaunis.\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-04-24-18.07.54-150x150.jpeg\" 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=62765&#038;lang=fi\">Luokkahuone muuttuu valon labyrintiksi! Laserin ja sumun luoma \u201dvalon j\u00e4lki\u201d on h\u00e4ik\u00e4isev\u00e4n kaunis.<\/a><time datetime=\"2026-04-25T05:17:43+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670825\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62763&#038;lang=hi\" aria-label=\"\u0915\u094d\u0932\u093e\u0938\u0930\u0942\u092e \u092c\u0928\u093e \u0930\u094b\u0936\u0928\u0940 \u0915\u0940 \u092d\u0942\u0932\u092d\u0941\u0932\u0948\u092f\u093e! \u0932\u0947\u091c\u093c\u0930 \u0914\u0930 \u0927\u0941\u0902\u0927 \u0938\u0947 \u092c\u0928\u0940 &#8216;\u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u092a\u0926\u091a\u093f\u0939\u094d\u0928&#8217; \u0915\u0940 \u091c\u093e\u0926\u0941\u0908 \u0938\u0941\u0902\u0926\u0930\u0924\u093e\u0964\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-04-24-18.07.54-150x150.jpeg\" 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=62763&#038;lang=hi\">\u0915\u094d\u0932\u093e\u0938\u0930\u0942\u092e \u092c\u0928\u093e \u0930\u094b\u0936\u0928\u0940 \u0915\u0940 \u092d\u0942\u0932\u092d\u0941\u0932\u0948\u092f\u093e! \u0932\u0947\u091c\u093c\u0930 \u0914\u0930 \u0927\u0941\u0902\u0927 \u0938\u0947 \u092c\u0928\u0940 &#8216;\u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u092a\u0926\u091a\u093f\u0939\u094d\u0928&#8217; \u0915\u0940 \u091c\u093e\u0926\u0941\u0908 \u0938\u0941\u0902\u0926\u0930\u0924\u093e\u0964<\/a><time datetime=\"2026-04-25T05:16:31+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670825\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62761&#038;lang=ko\" aria-label=\"\uad50\uc2e4\uc774 \ube5b\uc758 \ubbf8\ub85c\ub85c?! \ub808\uc774\uc800\uc640 \uc548\uac1c\uac00 \ub9cc\ub4e0 \u2018\ube5b\uc758 \ubc1c\uc790\ucde8\u2019\uac00 \ub108\ubb34 \uc601\ub871\ud55c \uac74\uc5d0 \ub300\ud558\uc5ec.\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-04-24-18.07.54-150x150.jpeg\" 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=62761&#038;lang=ko\">\uad50\uc2e4\uc774 \ube5b\uc758 \ubbf8\ub85c\ub85c?! \ub808\uc774\uc800\uc640 \uc548\uac1c\uac00 \ub9cc\ub4e0 \u2018\ube5b\uc758 \ubc1c\uc790\ucde8\u2019\uac00 \ub108\ubb34 \uc601\ub871\ud55c \uac74\uc5d0 \ub300\ud558\uc5ec.<\/a><time datetime=\"2026-04-25T05:15:32+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670825\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62759&#038;lang=zh\" aria-label=\"\u6559\u5ba4\u79d2\u8b8a\u96f7\u5c04\u8ff7\u5bae\uff01\u7576\u7c89\u5875\u8207\u9727\u6c23\u9047\u4e0a\u96f7\u5c04\u2014\u2014\u7f8e\u5230\u7a92\u606f\u7684\u300c\u5149\u4e4b\u8db3\u8de1\u300d\u3002\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-04-24-18.07.54-150x150.jpeg\" 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=62759&#038;lang=zh\">\u6559\u5ba4\u79d2\u8b8a\u96f7\u5c04\u8ff7\u5bae\uff01\u7576\u7c89\u5875\u8207\u9727\u6c23\u9047\u4e0a\u96f7\u5c04\u2014\u2014\u7f8e\u5230\u7a92\u606f\u7684\u300c\u5149\u4e4b\u8db3\u8de1\u300d\u3002<\/a><time datetime=\"2026-04-25T05:14:21+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670825\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=26658\" aria-label=\"\u306a\u305c5A\u304b\u3089\uff1f\u5b9f\u9a13\u3067\u7d0d\u5f97\u3059\u308b\u30a2\u30ca\u30ed\u30b0\u96fb\u6d41\u8a08\u306e\u4f7f\u3044\u65b9\u3068\u30c7\u30b8\u30bf\u30eb\u96fb\u6d41\u8a08\u300c\u30d7\u30c1\u30e1\u30fc\u30bf\u30fc\u300d\u306e\u7d20\u6674\u3089\u3057\u3055\uff01\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-04-25-4.43.45-150x150.jpeg\" 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=26658\">\u306a\u305c5A\u304b\u3089\uff1f\u5b9f\u9a13\u3067\u7d0d\u5f97\u3059\u308b\u30a2\u30ca\u30ed\u30b0\u96fb\u6d41\u8a08\u306e\u4f7f\u3044\u65b9\u3068\u30c7\u30b8\u30bf\u30eb\u96fb\u6d41\u8a08\u300c\u30d7\u30c1\u30e1\u30fc\u30bf\u30fc\u300d\u306e\u7d20\u6674\u3089\u3057\u3055\uff01<\/a><time datetime=\"2026-04-25T04:15:10+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670825\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=26826\" aria-label=\"\u6559\u5ba4\u304c\u5149\u306e\u8ff7\u5bae\u306b\uff01\u30ec\u30fc\u30b6\u30fc\u3068\u9ed2\u677f\u6d88\u3057\u30fb\u9727\u304c\u63cf\u304d\u51fa\u3059\u300c\u5149\u306e\u8db3\u8de1\u300d\u304c\u7f8e\u3057\u3059\u304e\u308b\u4ef6\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-04-24-18.07.54-150x150.jpeg\" 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=26826\">\u6559\u5ba4\u304c\u5149\u306e\u8ff7\u5bae\u306b\uff01\u30ec\u30fc\u30b6\u30fc\u3068\u9ed2\u677f\u6d88\u3057\u30fb\u9727\u304c\u63cf\u304d\u51fa\u3059\u300c\u5149\u306e\u8db3\u8de1\u300d\u304c\u7f8e\u3057\u3059\u304e\u308b\u4ef6<\/a><time datetime=\"2026-04-25T04:01:39+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670825\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62719&#038;lang=es\" aria-label=\"\u00bfSomos conductores de electricidad? \u00a1Atr\u00e9vete con el incre\u00edble experimento del circuito humano! [Tamesu-kun]\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/3c79d3032be1ac0cb7eb6766ca21a5da-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=62719&#038;lang=es\">\u00bfSomos conductores de electricidad? \u00a1Atr\u00e9vete con el incre\u00edble experimento del circuito humano! [Tamesu-kun]<\/a><time datetime=\"2026-04-24T04:32:37+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670824\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62716&#038;lang=fi\" aria-label=\"Kulkeeko s\u00e4hk\u00f6 ihmiskehon l\u00e4pi? Hypp\u00e4\u00e4 mukaan j\u00e4nnitt\u00e4v\u00e4\u00e4n ihmisvirtapiiri-kokeeseen! [Tamesu-kun]\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/3c79d3032be1ac0cb7eb6766ca21a5da-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=62716&#038;lang=fi\">Kulkeeko s\u00e4hk\u00f6 ihmiskehon l\u00e4pi? Hypp\u00e4\u00e4 mukaan j\u00e4nnitt\u00e4v\u00e4\u00e4n ihmisvirtapiiri-kokeeseen! [Tamesu-kun]<\/a><time datetime=\"2026-04-24T04:32:13+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670824\u65e5<\/time><\/li>\n<\/ul>&nbsp;","protected":false},"excerpt":{"rendered":"<p>Olen Ken Kuwako, tiedekouluttaja. Joka p\u00e4iv\u00e4 on koe. Mit\u00e4 teille tulee mieleen, kun puhutaan luonnontieteen ko [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":41312,"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":[1630],"tags":[],"class_list":["post-54745","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category--fi"],"jetpack_featured_media_url":"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/10\/3e8474dc4a3caf45cf4f4174b83e1fd8.jpg","jetpack-related-posts":[{"id":57757,"url":"https:\/\/phys-edu.net\/wp\/?p=57757&lang=fi","url_meta":{"origin":54745,"position":0},"title":"Mit\u00e4 tapahtuu, kun kupari ja sinkki laitetaan suolahappoon? Metallien \u201cpersoonallisuustesti\u201d ennen paristokokeita","author":"\u6851\u5b50 \u7814","date":"2025\u5e7412\u670823\u65e5","format":false,"excerpt":"Hei, olen Ken Kuwako, tiedevalmentaja. Jokainen p\u00e4\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/%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%88-2025-12-23-4.57.34.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/%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%88-2025-12-23-4.57.34.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/%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%88-2025-12-23-4.57.34.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/%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%88-2025-12-23-4.57.34.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/%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%88-2025-12-23-4.57.34.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/12\/%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%88-2025-12-23-4.57.34.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":53867,"url":"https:\/\/phys-edu.net\/wp\/?p=53867&lang=fi","url_meta":{"origin":54745,"position":1},"title":"Numeroiden salaisuus: Metallimysteerin ratkaisu merkitsevien numeroiden avulla!","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u67085\u65e5","format":false,"excerpt":"Tervehdys, olen Kuwako Ken, Tiede-valmentaja. Joka\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/05\/0BD919EF-1316-41A9-BF33-DE0054D772FC.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/05\/0BD919EF-1316-41A9-BF33-DE0054D772FC.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2018\/05\/0BD919EF-1316-41A9-BF33-DE0054D772FC.jpeg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":58583,"url":"https:\/\/phys-edu.net\/wp\/?p=58583&lang=fi","url_meta":{"origin":54745,"position":2},"title":"Ekologinen, helppo ja siivouskin vaivatonta! Pinoa vain \u2013 \u201champurilaismallinen Daniellin paristo\u201d -koe","author":"\u6851\u5b50 \u7814","date":"2026\u5e741\u67088\u65e5","format":false,"excerpt":"Olen tiedevalmentaja Ken Kuwako. Joka p\u00e4iv\u00e4 on koe\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/bd40e0c355c2a82bc188164b180a4d66.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/bd40e0c355c2a82bc188164b180a4d66.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/bd40e0c355c2a82bc188164b180a4d66.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/bd40e0c355c2a82bc188164b180a4d66.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/bd40e0c355c2a82bc188164b180a4d66.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":54885,"url":"https:\/\/phys-edu.net\/wp\/?p=54885&lang=fi","url_meta":{"origin":54745,"position":3},"title":"Metallien tuolileikki! \u201cHaluan olla ioni!\u201d Mikroskaalan koe metallien reaktiivisuudesta","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u670824\u65e5","format":false,"excerpt":"T\u00e4ss\u00e4 on Kensaku Kuwako, tiedekouluttajanne. Jokai\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1630&lang=fi"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/7b50bcba61a6a4da8d13a5ba751a66b9.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/7b50bcba61a6a4da8d13a5ba751a66b9.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/7b50bcba61a6a4da8d13a5ba751a66b9.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/7b50bcba61a6a4da8d13a5ba751a66b9.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/7b50bcba61a6a4da8d13a5ba751a66b9.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/11\/7b50bcba61a6a4da8d13a5ba751a66b9.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":59684,"url":"https:\/\/phys-edu.net\/wp\/?p=59684&lang=fi","url_meta":{"origin":54745,"position":4},"title":"T\u00e4t\u00e4 on tiede! 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