{"id":53913,"date":"2025-10-06T04:48:54","date_gmt":"2025-10-05T19:48:54","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=53913"},"modified":"2025-10-06T04:48:54","modified_gmt":"2025-10-05T19:48:54","slug":"poreileva-mysteeri-hiilidioksidin-metsastys-koulukemian-klassikko","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=53913&lang=fi","title":{"rendered":"Poreileva mysteeri: Hiilidioksidin mets\u00e4stys \u2013 koulukemian klassikko!"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>Olen tiedekouluttaja Ken Kuwako. Jokainen p\u00e4iv\u00e4 on koe!<\/strong><\/span><\/p>\n<p>Limun poreilevat kuplat, kylpyyn laitettaessa sihisev\u00e4t kylpypommit&#8230; Ymp\u00e4rill\u00e4mme on monenlaisia ihmeellisi\u00e4 kuplia. Mist\u00e4 niiss\u00e4 oikein on kyse? Itse asiassa useimmiten syyllinen on hiilidioksidi, kaasumainen aine. Se on silmille n\u00e4kym\u00e4t\u00f6n eik\u00e4 sit\u00e4 voi koskettaa. Milt\u00e4 kuulostaisi l\u00e4hte\u00e4 etsim\u00e4\u00e4n t\u00e4m\u00e4 kaasu, paljastaa sen todellinen luonne ja tehd\u00e4 tieteellinen koe? T\u00e4ss\u00e4 artikkelissa esittelen sinulle tavan &#8220;vangita&#8221; n\u00e4kym\u00e4t\u00f6n kaasu ja selvitt\u00e4\u00e4 sen ominaisuudet \u2013 kyseess\u00e4 on aivan peruskoulun kemian tunneilta tuttu koe!<\/p>\n<p>Etsiv\u00e4n 7 ty\u00f6kalua: Tarvittavat v\u00e4lineet<\/p>\n<p class=\"p3\">Tarkistetaan ensin, mit\u00e4 tarvitsemme kokeen aloittamiseen! N\u00e4m\u00e4 ovat avaimia tapauksen ratkaisuun.<\/p>\n<p class=\"p6\">\u2022Suolahappo 5% (noin 5 ml)<\/p>\n<p class=\"p6\">\u2022Kalkkikivi (yksi pieni pala)<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-47160 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/d30c6b910e7c49dca4958dfbaeab3693.jpg\" alt=\"\u5869\u9178\" width=\"310\" height=\"345\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/d30c6b910e7c49dca4958dfbaeab3693.jpg 1036w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/d30c6b910e7c49dca4958dfbaeab3693-269x300.jpg 269w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/d30c6b910e7c49dca4958dfbaeab3693-918x1024.jpg 918w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/d30c6b910e7c49dca4958dfbaeab3693-768x857.jpg 768w\" sizes=\"auto, (max-width: 310px) 100vw, 310px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-47161 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/51ac36a428aba44bfd0d1c628a6223e0.jpg\" alt=\"\u77f3\u7070\u77f3\" width=\"281\" height=\"232\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/51ac36a428aba44bfd0d1c628a6223e0.jpg 866w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/51ac36a428aba44bfd0d1c628a6223e0-300x247.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/51ac36a428aba44bfd0d1c628a6223e0-768x633.jpg 768w\" sizes=\"auto, (max-width: 281px) 100vw, 281px\" \/><\/p>\n<p class=\"p6\">\u2022Muut v\u00e4lineet : Tulitikut, suitsuke, tuhkakuppi, kalkkivesi (n. 5 ml), m\u00e4rk\u00e4 r\u00e4tti (turvallisuuden takaamiseksi!).<\/p>\n<p>Ensimm\u00e4inen tutkinta: Vangitaan sihisev\u00e4 kupla!<\/p>\n<p class=\"p7\"><b>1. Tuotetaan hiilidioksidia!<\/b><b><\/b><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41855 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/d0105baaa61807d97014d952d41f1703-1.jpg\" alt=\"\u4e8c\u9178\u5316\u70ad\u7d20\u306e\u767a\u751f\" width=\"306\" height=\"269\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/d0105baaa61807d97014d952d41f1703-1.jpg 1188w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/d0105baaa61807d97014d952d41f1703-1-300x264.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/d0105baaa61807d97014d952d41f1703-1-1024x902.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/d0105baaa61807d97014d952d41f1703-1-768x676.jpg 768w\" sizes=\"auto, (max-width: 306px) 100vw, 306px\" \/><\/p>\n<p class=\"p3\">Kaada suolahappoa 5 ml koeputkeen ja lis\u00e4\u00e4 sinne vihje \u2013 kalkkikivi! Kipin\u00f6iv\u00e4 poreilu alkaa v\u00e4litt\u00f6m\u00e4sti! T\u00e4m\u00e4 on se ratkaiseva hetki, jolloin n\u00e4kym\u00e4t\u00f6nt\u00e4 kaasua, hiilidioksidia, syntyy. T\u00e4m\u00e4 reaktio on todiste siit\u00e4, ett\u00e4 kalkkikiven p\u00e4\u00e4komponentti, kalsiumkarbonaatti, ja suolahappo reagoivat kemiallisesti. Kemian kielell\u00e4 ilmaistuna tapahtuu seuraavanlainen &#8220;rikos&#8221;:<\/p>\n<p style=\"text-align: center;\">CaCO\u2083 (Kalsiumkarbonaatti) + 2HCl (Suolahappo) \u27f6 CaCl\u2082 (Kalsiumkloridi) + H\u2082O (Vesi) + CO\u2082 (Hiilidioksidi)<\/p>\n<p>Kun kalkkikivi liukenee suolahappoon, se muuttuu vedeksi ja kalsiumkloridiksi, ja samalla p\u00e4\u00e4henkil\u00f6mme, hiilidioksidi, karkaa ilmaan kaasuna.<\/p>\n<p>Toinen todiste: Totuus paljastuu kalkkivedest\u00e4<\/p>\n<p class=\"p7\"><b>2. Varmistus kalkkivedell\u00e4!<\/b><b><\/b><\/p>\n<p class=\"p3\">Seuraavaksi, johdetaan &#8220;vangittu&#8221; kaasu toiseen koeputkeen, jossa on kirkasta kalkkivett\u00e4. Kun koeputkea ravistaa kevyesti&#8230; hups! Kuin taianomaisesti kirkas neste samentuu maitomaiseksi! T\u00e4m\u00e4 on ratkaiseva todiste.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41858 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/2bd388cf89ab61b9cc1ab3a70e1c958f.jpg\" alt=\"\u767d\u304f\u6fc1\u3063\u305f\u77f3\u7070\u6c34\" width=\"348\" height=\"261\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/2bd388cf89ab61b9cc1ab3a70e1c958f.jpg 1014w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/2bd388cf89ab61b9cc1ab3a70e1c958f-300x225.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/2bd388cf89ab61b9cc1ab3a70e1c958f-768x576.jpg 768w\" sizes=\"auto, (max-width: 348px) 100vw, 348px\" \/><\/p>\n<p class=\"p3\">Miksi se muuttuu valkoiseksi? T\u00e4ss\u00e4kin tapahtuu kemiallinen reaktio. Kalkkivesi on oikeasti kalsiumhydroksidia. Kun se kohtaa hiilidioksidin, ne yhdistyv\u00e4t muodostaen valkoisia kalsiumkarbonaatti -rakeita, jotka eiv\u00e4t liukene veteen. Niinp\u00e4 aine palaa takaisin kokeen alussa k\u00e4ytt\u00e4m\u00e4mme kalkkikiven koostumukseen! Tiede on kuin upea tarina.<\/p>\n<p>Kolmas todistajanlausunto: Sammuvan liekin arvoitus<\/p>\n<p class=\"p7\"><b>3. Testi sytytetyll\u00e4 suitsukkeella!<\/b><b><\/b><\/p>\n<p class=\"p3\">Viimeistell\u00e4\u00e4n tutkimus. Ty\u00f6nn\u00e4 varovasti sytytetty suitsuke koeputkeen, jossa on kaasua. Mit\u00e4 tapahtuu? Palo sammuu hetkess\u00e4, ik\u00e4\u00e4n kuin joku olisi puhaltanut sen pois!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-41856 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/5860631d5bbd36b47af00d5ba86a528c.jpg\" alt=\"\u7dda\u9999\u306e\u706b\u304c\u6d88\u3048\u308b\" width=\"371\" height=\"363\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/5860631d5bbd36b47af00d5ba86a528c.jpg 928w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/5860631d5bbd36b47af00d5ba86a528c-300x294.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/12\/5860631d5bbd36b47af00d5ba86a528c-768x751.jpg 768w\" sizes=\"auto, (max-width: 371px) 100vw, 371px\" \/><\/p>\n<p class=\"p3\">T\u00e4m\u00e4 osoittaa hiilidioksidin t\u00e4rke\u00e4n ominaisuuden: se on palamaton. Mutta siin\u00e4 ei ole kaikki. Koska hiilidioksidi on ilmaa raskaampaa, se ker\u00e4\u00e4ntyy koeputken pohjalle ja syrj\u00e4ytt\u00e4\u00e4 hapen, jota tarvitaan palamiseen. T\u00e4t\u00e4 ominaisuutta hy\u00f6dynnet\u00e4\u00e4n esimerkiksi hiilidioksidisammuttimissa.<\/p>\n<p>Pienest\u00e4 kuplasta suureen maailmaan<\/p>\n<p class=\"p3\">Mit\u00e4 pidit t\u00e4st\u00e4 tiedeetsiv\u00e4leikist\u00e4? Ker\u00e4simme kolme varmaa todistetta ja selvitimme, ett\u00e4 n\u00e4kym\u00e4t\u00f6n kaasu oli hiilidioksidia.<\/p>\n<ol>\n<li>Samentaa kalkkiveden valkoiseksi.<\/li>\n<li>Samuttaa tulen (ei pala itse eik\u00e4 edist\u00e4 palamista).<\/li>\n<li>On ilmaa raskaampaa (emme n\u00e4hneet t\u00e4t\u00e4 suoraan, mutta se on yksi syy tulen sammumiseen).<\/li>\n<\/ol>\n<p class=\"p3\">Kun tunnemme hiilidioksidin ominaisuudet, n\u00e4emme sen yhteyden el\u00e4m\u00e4\u00e4mme ja maapallon ymp\u00e4rist\u00f6\u00f6n. Virvoitusjuomien nautinnosta palontorjunnan sammuttimiin ja jopa ilmaston l\u00e4mpenemisen suureen ongelmaan. Pienest\u00e4, yhdess\u00e4 koeputkessa syntyneest\u00e4 kuplasta on yhteys suureen maailmaan, jossa el\u00e4mme.<\/p>\n<p>Yhteystiedot ja pyynn\u00f6t<br \/>\nTuo tieteen ihmeet ja hauskuus l\u00e4hemm\u00e4ksi! T\u00e4ss\u00e4 on helppolukuisia ohjeita hauskoihin kotikokeisiin ja niiden saloihin. Etsi lis\u00e4\u00e4 tietoa!<br \/>\n\u30fbTietoa tiedeblogin sis\u00e4ll\u00f6st\u00e4 on julkaistu kirjana. Lis\u00e4tietoja <a href=\"https:\/\/amzn.to\/42PMCEL\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n\u30fbTietoa yll\u00e4pit\u00e4j\u00e4 Ken Kuwakosta on <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">t\u00e4\u00e4ll\u00e4<\/a><br \/>\n\u30fbErilaiset pyynn\u00f6t (kirjoittaminen, luennot, tiedekerhot, TV-konsultointi\/esiintyminen jne.) <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n<span class=\"s2\">\u30fbArtikkelip\u00e4ivitykset <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\">Tiedeblogi-kanava<\/a> esittelee kokeita videoilla!<\/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=62612&#038;lang=hi\" aria-label=\"\u090f\u0915 LED \u0914\u0930 \u0938\u093e\u0924 \u0930\u0902\u0917! \u0905\u092a\u0928\u0940 \u0939\u0925\u0947\u0932\u0940 \u092a\u0930 \u0938\u0940\u0916\u0947\u0902 &#8216;\u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u092a\u094d\u0930\u093e\u0925\u092e\u093f\u0915 \u0930\u0902\u0917&#8217; \u0915\u093e \u091c\u093e\u0926\u0942\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=62612&#038;lang=hi\">\u090f\u0915 LED \u0914\u0930 \u0938\u093e\u0924 \u0930\u0902\u0917! \u0905\u092a\u0928\u0940 \u0939\u0925\u0947\u0932\u0940 \u092a\u0930 \u0938\u0940\u0916\u0947\u0902 &#8216;\u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0947 \u092a\u094d\u0930\u093e\u0925\u092e\u093f\u0915 \u0930\u0902\u0917&#8217; \u0915\u093e \u091c\u093e\u0926\u0942<\/a><time datetime=\"2026-04-21T04:57:42+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62610&#038;lang=es\" aria-label=\"\u00bfUn solo LED para siete colores? \u00a1Experimenta con los &#8220;Colores Primarios de la Luz&#8221; en la palma de tu mano!\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=62610&#038;lang=es\">\u00bfUn solo LED para siete colores? \u00a1Experimenta con los &#8220;Colores Primarios de la Luz&#8221; en la palma de tu mano!<\/a><time datetime=\"2026-04-21T04:57:30+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62608&#038;lang=fi\" aria-label=\"Yksi LED, seitsem\u00e4n v\u00e4ri\u00e4? Koe valon v\u00e4rioppi k\u00e4mmenell\u00e4si!\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=62608&#038;lang=fi\">Yksi LED, seitsem\u00e4n v\u00e4ri\u00e4? Koe valon v\u00e4rioppi k\u00e4mmenell\u00e4si!<\/a><time datetime=\"2026-04-21T04:57:05+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62606&#038;lang=zh\" aria-label=\"\u4e00\u9846\u5c31\u8b8a\u4e03\u7a2e\u984f\u8272\uff1f\u7528\u4e09\u8272LED\u5728\u624b\u638c\u5fc3\u5927\u73a9\u300c\u5149\u7684\u4e09\u539f\u8272\u300d\uff01\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=62606&#038;lang=zh\">\u4e00\u9846\u5c31\u8b8a\u4e03\u7a2e\u984f\u8272\uff1f\u7528\u4e09\u8272LED\u5728\u624b\u638c\u5fc3\u5927\u73a9\u300c\u5149\u7684\u4e09\u539f\u8272\u300d\uff01<\/a><time datetime=\"2026-04-21T04:56:29+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62603&#038;lang=ko\" aria-label=\"\ub2e8 \ud558\ub098\ub85c 7\uac00\uc9c0 \ubcc0\ud654?! 3\uc0c9 LED\ub85c \uc990\uae30\ub294 \u2018\ube5b\uc758 \uc0bc\uc6d0\uc0c9\u2019 \uc190\ubc14\ub2e5 \uc2e4\ud5d8!\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=62603&#038;lang=ko\">\ub2e8 \ud558\ub098\ub85c 7\uac00\uc9c0 \ubcc0\ud654?! 3\uc0c9 LED\ub85c \uc990\uae30\ub294 \u2018\ube5b\uc758 \uc0bc\uc6d0\uc0c9\u2019 \uc190\ubc14\ub2e5 \uc2e4\ud5d8!<\/a><time datetime=\"2026-04-21T04:56:14+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62600&#038;lang=en\" aria-label=\"One LED, Seven Colors? Master the &#8220;Primary Colors of Light&#8221; with This Palm-Sized Experiment!\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=62600&#038;lang=en\">One LED, Seven Colors? Master the &#8220;Primary Colors of Light&#8221; with This Palm-Sized Experiment!<\/a><time datetime=\"2026-04-21T04:53:26+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62577\" aria-label=\"\u3010\u79d1\u5b66\u76e3\u4fee\u3011\u70ad\u9178\u7f36\u3092\u632f\u3063\u3061\u3083\u3063\u305f\uff01\u30c7\u30b3\u30d4\u30f3\u88cf\u6280\u306f\u672c\u5f53\u306b\u52b9\u304f\uff1f1,000\u672c\u306e\u30d3\u30fc\u30eb\u3067\u8a66\u3057\u305f\u79d1\u5b66\u306e\u7d50\u8ad6\u300c\u6559\u79d1\u66f8\u3067\u7fd2\u3063\u305f\u30a2\u30ec\u300d\uff08\u30c6\u30ec\u30d3\u671d\u65e5\uff09\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-04-21-5.41.38-150x150.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=62577\">\u3010\u79d1\u5b66\u76e3\u4fee\u3011\u70ad\u9178\u7f36\u3092\u632f\u3063\u3061\u3083\u3063\u305f\uff01\u30c7\u30b3\u30d4\u30f3\u88cf\u6280\u306f\u672c\u5f53\u306b\u52b9\u304f\uff1f1,000\u672c\u306e\u30d3\u30fc\u30eb\u3067\u8a66\u3057\u305f\u79d1\u5b66\u306e\u7d50\u8ad6\u300c\u6559\u79d1\u66f8\u3067\u7fd2\u3063\u305f\u30a2\u30ec\u300d\uff08\u30c6\u30ec\u30d3\u671d\u65e5\uff09<\/a><time datetime=\"2026-04-21T04:13:26+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=34369\" aria-label=\"\u305f\u3063\u305f1\u3064\u3067\u4e03\u5909\u5316\uff1f\uff13\u8272LED\u3067\u300c\u5149\u306e\u4e09\u539f\u8272\u300d\u3092\u624b\u306e\u3072\u3089\u5b9f\u9a13\uff01\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/01\/74e22599517841755365c47bd0643831-150x150.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=34369\">\u305f\u3063\u305f1\u3064\u3067\u4e03\u5909\u5316\uff1f\uff13\u8272LED\u3067\u300c\u5149\u306e\u4e09\u539f\u8272\u300d\u3092\u624b\u306e\u3072\u3089\u5b9f\u9a13\uff01<\/a><time datetime=\"2026-04-21T04:00:32+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670821\u65e5<\/time><\/li>\n<li><div class=\"wp-block-latest-posts__featured-image\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=62553&#038;lang=fi\" aria-label=\"K\u00e4vyist\u00e4 taikaa! Askartele ekologinen joulukuusi ja opi kasvien viisauksia\"><img width=\"150\" height=\"150\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2019\/12\/2-150x150.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=62553&#038;lang=fi\">K\u00e4vyist\u00e4 taikaa! Askartele ekologinen joulukuusi ja opi kasvien viisauksia<\/a><time datetime=\"2026-04-20T04:48:25+09:00\" class=\"wp-block-latest-posts__post-date\">2026\u5e744\u670820\u65e5<\/time><\/li>\n<\/ul>&nbsp;","protected":false},"excerpt":{"rendered":"<p>Olen tiedekouluttaja Ken Kuwako. Jokainen p\u00e4iv\u00e4 on koe! Limun poreilevat kuplat, kylpyyn laitettaessa sihisev\u00e4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":41856,"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":"","footnotes":""},"categories":[1630],"tags":[],"class_list":["post-53913","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\/12\/5860631d5bbd36b47af00d5ba86a528c.jpg","jetpack-related-posts":[{"id":54807,"url":"https:\/\/phys-edu.net\/wp\/?p=54807&lang=fi","url_meta":{"origin":53913,"position":0},"title":"Ravista, pid\u00e4t\u00e4 ja purkaudu! 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