{"id":65835,"date":"2026-07-27T16:32:18","date_gmt":"2026-07-27T07:32:18","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=65835"},"modified":"2026-07-27T16:32:18","modified_gmt":"2026-07-27T07:32:18","slug":"hanavesi-ei-olekaan-neutraalia-mita-btb-liuos-paljasti-arkisesta-vedestamme","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=65835&lang=fi","title":{"rendered":"Hanavesi ei olekaan neutraalia! Mit\u00e4 BTB-liuos paljasti arkisesta vedest\u00e4mme"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>T\u00e4m\u00e4 on Science Trainer Kuwako Ken. Joka p\u00e4iv\u00e4 on uusi koe.<\/strong><\/span><\/p>\n<p>&#8220;Mink\u00e4 v\u00e4riseksi hanavesi muuttuu, kun siihen lis\u00e4t\u00e4\u00e4n BTB-liuosta?&#8221; Moni veikkaa varmasti: &#8220;Juomavett\u00e4, joten se on varmaan neutraalia. Siis vihre\u00e4\u00e4?&#8221; Niin min\u00e4kin ajattelin pitk\u00e4\u00e4n. Kun kuitenkin kokeilin t\u00e4t\u00e4 yl\u00e4koulun luonnontieteiden tunnilla, yll\u00e4tyin t\u00e4ysin. Lopputulos ei ollutkaan odotettu. Katsotaanpa ensin, mit\u00e4 tapahtuu.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-63975 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.10.51.jpeg\" alt=\"\" width=\"311\" height=\"261\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.10.51.jpeg 802w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.10.51-300x252.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.10.51-768x645.jpeg 768w\" sizes=\"auto, (max-width: 311px) 100vw, 311px\" \/><\/p>\n<h3>Hanavesi ei ollutkaan t\u00e4ysin neutraalia?<\/h3>\n<p>Aivan oikein \u2013 v\u00e4ri on sininen!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-42850 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/05\/3014d07a443c1639cee7c1c9a9bf1a9e.jpg\" sizes=\"auto, (max-width: 455px) 100vw, 455px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/05\/3014d07a443c1639cee7c1c9a9bf1a9e.jpg 902w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/05\/3014d07a443c1639cee7c1c9a9bf1a9e-300x247.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/05\/3014d07a443c1639cee7c1c9a9bf1a9e-768x633.jpg 768w\" alt=\"\" width=\"455\" height=\"375\" \/><\/p>\n<p><b>Sininen.<\/b> T\u00e4m\u00e4 tulos saatiin Chiban prefektuurin hanavedell\u00e4. Jos ajattelit: &#8220;Eik\u00f6 hanaveden pit\u00e4isi olla neutraalia?&#8221;, taustalla piilee mielenkiintoinen yksityiskohta. Hanavesi on kyll\u00e4 hyvin l\u00e4hell\u00e4 neutraalia, mutta <b>todellisuudessa se on usein liev\u00e4sti em\u00e4ksist\u00e4<\/b>.<\/p>\n<p>Kun asiaa tutkii tarkemmin, syit\u00e4 l\u00f6ytyy p\u00e4\u00e4asiassa kaksi.<\/p>\n<p>Ensimm\u00e4inen on se, ett\u00e4 veden desinfiointiin lis\u00e4t\u00e4\u00e4n <b>klooria (hypokloorihappoa)<\/b>, mik\u00e4 siirt\u00e4\u00e4 veden pH:ta hieman em\u00e4ksisemp\u00e4\u00e4n suuntaan. Toinen syy on se, ett\u00e4 lains\u00e4\u00e4d\u00e4nn\u00f6n mukaan hanaveden <b>pH saa olla v\u00e4lill\u00e4 5,8\u20138,6<\/b>, joten sen ei tarvitse olla t\u00e4sm\u00e4lleen pH 7. BTB-liuos muuttuu <b>vihre\u00e4ksi noin pH:n 6\u20137,6 alueella<\/b>, joten jos hanaveden pH on vain hieman yli seitsem\u00e4n, se n\u00e4ytt\u00e4\u00e4 jo sinert\u00e4v\u00e4lt\u00e4.<\/p>\n<p>Tokion vesilaitoksen verkkosivuilta:<\/p>\n<blockquote><p>Kysymys: Mit\u00e4 hanaveden pH tarkoittaa?<\/p>\n<p>Vastaus: pH kuvaa veden happamuutta tai em\u00e4ksisyytt\u00e4. Asteikko on 0\u201314, eik\u00e4 sill\u00e4 ole yksikk\u00f6\u00e4. pH 7 on neutraali. Sit\u00e4 pienemm\u00e4t arvot ovat happamampia ja suuremmat em\u00e4ksisempi\u00e4. Hanaveden laatuvaatimuksissa pH:n tulee olla v\u00e4lill\u00e4 5,8\u20138,6, jotta vesijohtoverkosto ei sy\u00f6pyisi. Tokion hanaveden pH on yleens\u00e4 noin 7,5, eli hyvin l\u00e4hell\u00e4 neutraalia.<\/p>\n<p><a href=\"https:\/\/www.waterworks.metro.tokyo.lg.jp\/faq\/qa-22.html\">https:\/\/www.waterworks.metro.tokyo.lg.jp\/faq\/qa-22.html<\/a><\/p><\/blockquote>\n<p>Chiban prefektuurin verkkosivuilta:<\/p>\n<blockquote><p>Lyijy liukenee huonommin em\u00e4ksiseen veteen. T\u00e4m\u00e4n vuoksi koko vesijohtoverkossa on huhtikuusta 2002 l\u00e4htien s\u00e4\u00e4detty hanavesi liev\u00e4sti em\u00e4ksiseksi.<\/p>\n<p><a href=\"https:\/\/www.pref.chiba.lg.jp\/suidou\/kyuusui\/namari\/03qa.html\">https:\/\/www.pref.chiba.lg.jp\/suidou\/kyuusui\/namari\/03qa.html<\/a><\/p><\/blockquote>\n<p>Kokeilin samaa my\u00f6s laboratoriomme vesijohtovedell\u00e4, ja tulos oli j\u00e4lleen sininen.<\/p>\n<p>On kuitenkin hyv\u00e4 huomata, ett\u00e4 <b>hanavesi ei kaikkialla Japanissa ole automaattisesti em\u00e4ksist\u00e4<\/b>.<\/p>\n<p>Desinfioinnissa k\u00e4ytett\u00e4v\u00e4 natriumhypokloriitti siirt\u00e4\u00e4 veden pH:ta em\u00e4ksiseen suuntaan, mutta lopulliseen pH-arvoon vaikuttavat my\u00f6s veden alkuper\u00e4, kuten joet, padot tai pohjavesi, sek\u00e4 niiden mineraalit ja alueen kallioper\u00e4. Siksi joillakin alueilla hanavesi voi olla l\u00e4hes neutraalia tai jopa aavistuksen hapanta. T\u00e4sm\u00e4llisemmin sanottuna desinfiointi yleens\u00e4 &#8220;ty\u00f6nt\u00e4\u00e4&#8221; veden hieman em\u00e4ksisemp\u00e4\u00e4n suuntaan.<\/p>\n<h3>Puhalla veteen \u2013 v\u00e4ri muuttuu!<\/h3>\n<p>Nyt alkaa kokeen hauskin osuus.<\/p>\n<p>Kun puhallat hitaasti pillill\u00e4 ilmaa siniseen hanaveteen, v\u00e4ri muuttuu v\u00e4hitellen <b>sinisest\u00e4 vihre\u00e4ksi ja lopulta keltaiseksi<\/b>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-63976 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.10.42.jpeg\" alt=\"\" width=\"402\" height=\"303\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.10.42.jpeg 894w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.10.42-300x226.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.10.42-768x579.jpeg 768w\" sizes=\"auto, (max-width: 402px) 100vw, 402px\" \/><\/p>\n<p>Katso video:<\/p>\n<p><iframe loading=\"lazy\" title=\"\u6c34\u9053\u6c34\u306f\u4e2d\u6027\u3058\u3083\u306a\u304b\u3063\u305f\uff01BTB\u6db2\u304c\u6559\u3048\u3066\u304f\u308c\u305f\u3001\u8eab\u8fd1\u306a\u6c34\u306e\u771f\u5b9f\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/YL0RFzq17aM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>Kun vertaat v\u00e4ri\u00e4 ennen puhaltamista ja sen j\u00e4lkeen, ero n\u00e4kyy heti.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-63977 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.12.44.jpeg\" alt=\"\" width=\"487\" height=\"274\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.12.44.jpeg 1230w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.12.44-300x169.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.12.44-1024x576.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.12.44-768x432.jpeg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.12.44-320x180.jpeg 320w\" sizes=\"auto, (max-width: 487px) 100vw, 487px\" \/><\/p>\n<p>Syy on siin\u00e4, ett\u00e4 hengitysilmassa oleva <b>hiilidioksidi liukenee veteen ja muodostaa hiilihappoa<\/b>. T\u00e4m\u00e4n seurauksena neste muuttuu v\u00e4hitellen happamammaksi.<\/p>\n<p>Sama ilmi\u00f6 tapahtuu my\u00f6s valtameriss\u00e4. Ilmastonmuutoksen yhteydess\u00e4 puhuttu &#8220;meren happamoituminen&#8221; johtuu juuri siit\u00e4, ett\u00e4 ilmakeh\u00e4n hiilidioksidi liukenee meriveteen ja laskee hitaasti sen pH-arvoa. Pienen vesilasin v\u00e4rinmuutos onkin yll\u00e4tt\u00e4v\u00e4n hyv\u00e4 pienoismalli koko maapallon mittakaavan ilmi\u00f6st\u00e4.<\/p>\n<p><iframe loading=\"lazy\" title=\"\u6c34\u306bBTB\u6db2\u3092\u5165\u308c\u3066\u3001\u3076\u304f\u3076\u304f\u3057\u3066\u307f\u308b\u3068\u2026\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/tC7SShBtSL4?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>Muuttuuko vesi happamaksi, kun siihen lis\u00e4t\u00e4\u00e4n klooria? Yleinen v\u00e4\u00e4rink\u00e4sitys<\/h3>\n<p>Jotkut lukijat ovat kysyneet: &#8220;Eik\u00f6 kloorin lis\u00e4\u00e4minen tee vedest\u00e4 hapanta?&#8221; Erinomainen kysymys \u2013 selitet\u00e4\u00e4n asia tarkemmin.<\/p>\n<p>Lyhyesti sanottuna <b>kloorikaasu (Cl<sub>2<\/sub>) tekee vedest\u00e4 happamampaa, mutta nykyisiss\u00e4 vedenpuhdistamoissa k\u00e4ytett\u00e4v\u00e4 natriumhypokloriitti on vahvan em\u00e4ksen suola, joten sen vesiliuos on em\u00e4ksinen.<\/b><\/p>\n<p>Vaikka molemmissa puhutaan &#8220;kloorista&#8221;, niiden kemialliset ominaisuudet ovat t\u00e4ysin erilaiset.<\/p>\n<p>Kemian oppikirjoissa esitell\u00e4\u00e4n usein reaktio, jossa kloorikaasu liukenee veteen:<\/p>\n<p style=\"text-align: center;\">Cl<sub>2<\/sub> + H<sub>2<\/sub>O \u21cc HClO + HCl<\/p>\n<p>(T\u00e4ll\u00f6in muodostuu kaksi happoa, hypokloorihappo HClO ja suolahappo HCl. Siksi <b>kloorikaasu<\/b> todella tekee liuoksesta happaman.)<\/p>\n<p>Aikaisemmin vedenpuhdistamoissa k\u00e4ytettiin usein nesteytetty\u00e4 kloorikaasua (Cl<sub>2<\/sub>), joten moni yhdist\u00e4\u00e4 edelleen kloorin t\u00e4h\u00e4n reaktioon.<\/p>\n<p>Nyky\u00e4\u00e4n kuitenkin Chibassa ja useimmissa muissa vedenpuhdistamoissa k\u00e4ytet\u00e4\u00e4n nestem\u00e4ist\u00e4 <b>natriumhypokloriittia (NaClO)<\/b>. Se on heikon hapon (HClO) ja vahvan em\u00e4ksen (NaOH) muodostama suola.<\/p>\n<p>Kun se liukenee veteen, tapahtuu hydrolyysi, jossa muodostuu hydroksidi-ioneja (OH\u207b). T\u00e4m\u00e4n vuoksi <b>liuos on em\u00e4ksinen<\/b>.<\/p>\n<p style=\"text-align: center;\">ClO\u207b + H<sub>2<\/sub>O \u21cc HClO + OH\u207b<\/p>\n<p>Siksi natriumhypokloriitin lis\u00e4\u00e4minen nostaa veden pH:ta eik\u00e4 laske sit\u00e4.<\/p>\n<p>On kiehtovaa, ett\u00e4 sama alkuaine \u2013 kloori \u2013 voi k\u00e4ytt\u00e4yty\u00e4 t\u00e4ysin eri tavalla riippuen siit\u00e4, miss\u00e4 kemiallisessa muodossa sit\u00e4 k\u00e4ytet\u00e4\u00e4n. Juuri t\u00e4llaiset yll\u00e4tykset tekev\u00e4t kemiasta niin kiinnostavaa.<\/p>\n<h3>Yhteydenotot ja yhteisty\u00f6<\/h3>\n<p>Haluan tuoda tieteen ihmeet ja oivallukset l\u00e4hemm\u00e4s kaikkia! Sivustolta l\u00f6yd\u00e4t hauskoja kotona teht\u00e4vi\u00e4 tiedekokeita sek\u00e4 selkeit\u00e4 vinkkej\u00e4 niiden toteuttamiseen. Tutustu rohkeasti my\u00f6s muihin artikkeleihin!<\/p>\n<p>\u30fbScience Notebook -sivuston sis\u00e4ll\u00f6st\u00e4 on julkaistu my\u00f6s kirja. Lis\u00e4tiedot <a href=\"https:\/\/amzn.to\/42PMCEL\">t\u00e4\u00e4lt\u00e4<\/a>.<\/p>\n<p>\u30fbLis\u00e4tietoja sivuston yll\u00e4pit\u00e4j\u00e4st\u00e4 Kuwako Kenist\u00e4 l\u00f6yd\u00e4t <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">t\u00e4\u00e4lt\u00e4<\/a>.<\/p>\n<p>\u30fbKirjoitus-, luento-, tiedety\u00f6paja-, TV-asiantuntija- ja muut yhteisty\u00f6pyynn\u00f6t <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a>.<\/p>\n<p><span class=\"s2\">\u30fbUusimmat artikkelit julkaistaan my\u00f6s <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\">Science Notebook -YouTube-kanavalla<\/a> julkaistaan jatkuvasti uusia kokeita!<\/p>\n<h3><span style=\"color: #ff0000;\">NEW\u3000\u5206\u89e3\u554f\u984c\u96c6\u3000\u7406\u79d1<\/span><\/h3>\r\n<ul>\r\n \t<li>\uff17\u6708\uff12\uff11\u65e5\u767a\u58f2\uff01\u300e<a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\">\u9ad8\u6821\u5165\u8a66 \u5206\u89e3\u554f\u984c\u96c6 \u7406\u79d1<\/a>\u300f\uff08\u5b66\u7814\uff09\u2026\u96e3\u3057\u3044\u554f\u984c\u3082\u5c0f\u3055\u306a\u554f\u984c\u306b\u5206\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u3093\u306a\u5206\u89e3\u306e\u6280\u8853\u304c\u8eab\u306b\u3064\u304f\u3088\u3046\u306b\u6df1\u304f\u95a2\u308f\u308a\u3092\u6301\u3063\u3066\u4f5c\u308a\u307e\u3057\u305f\u3002\r\n<a href=\"https:\/\/phys-edu.net\/wp\/?p=64462\"><img class=\"alignnone  wp-image-65097 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/07\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-07-04-8.40.17.jpeg\" alt=\"\" width=\"172\" height=\"244\" \/><\/a><\/li>\r\n<\/ul>\r\n<h3>\uff17\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p style=\"text-align: center;\">\u590f\u3067\u30d7\u30b7\u30e5\u30c3\u3068\u723d\u3084\u304b\u5b9f\u9a13\uff01<\/p>\r\n<img class=\"alignnone  wp-image-64964 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-06-30-4.31.58.jpeg\" alt=\"\" width=\"250\" height=\"310\" \/>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=206\">\u5c0f\u578b\u3067\u6301\u3061\u5e30\u308c\u308b\u3088\uff01\u30da\u30c3\u30c8\u30dc\u30c8\u30eb\u30ed\u30b1\u30c3\u30c8\u3092\u4f5c\u308d\u3046\uff01<\/a><\/p>\r\n\r\n<h3 style=\"text-align: left;\"><span style=\"font-size: medium;\"><b><strong>\u30c6\u30ec\u30d3\u756a\u7d44\u76e3\u4fee\u30fb\u30a4\u30d9\u30f3\u30c8\u7b49\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n \t<li>\uff17\u6708\uff11\uff18\u65e5\uff08\u571f\uff09\u300c<a href=\"https:\/\/official.idolfes.com\/s\/tif2026\/page\/broadcast\">TIF\u3000presents\u3000ONE\u3000SONG\u3000FES. <\/a>\u300d\uff08\u30d5\u30b8\u30c6\u30ec\u30d3\uff09<\/li>\r\n \t<li>7\u670818\u65e5\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=60018\">\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u300c\u30ca\u30ea\u30ab\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\u300d<\/a><\/li>\r\n \t<li>7\u670823\u65e5\uff08\u6728\uff09\u79d1\u5b66\u76e3\u4fee\u300019:00\u301c\u3000<a href=\"https:\/\/www.ntv.co.jp\/toppa\/\">THE\u7a81\u7834\u30d5\u30a1\u30a4\u30eb<\/a>\uff08\u65e5\u672c\u30c6\u30ec\u30d3\uff09<\/li>\r\n \t<li>\uff17\u6708\uff13\uff10\u65e5\uff08\u6c34\uff09\u3000\u76e3\u4fee\u3057\u305f\u30c6\u30ec\u30d3\u756a\u7d44\u653e\u9001\u4e88\u5b9a<\/li>\r\n \t<li>12\u670826\u65e5\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=64825\">\u30ca\u30ea\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\uff08\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\uff09\u958b\u50ac<\/a><\/li>\r\n<\/ul>\r\n<h3><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/h3>\r\n<ul>\r\n \t<li>\u300e\u5927\u4eba\u306e\u305f\u3081\u306e\u9ad8\u6821\u7269\u7406\u5fa9\u7fd2\u5e33\u300f\uff08\u8b1b\u8ac7\u793e\uff09\u2026\u4e00\u822c\u5411\u3051\u306b\u65e5\u5e38\u306e\u7269\u7406\u306b\u3064\u3044\u3066\u516c\u5f0f\u3092\u5143\u306b\u7d10\u89e3\u304d\u307e\u3057\u305f\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=1827\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u3067\u306f\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u203b\u5897\u5237\u304c\u304b\u304b\u308a\uff16\u5237\u3068\u306a\u308a\u307e\u3057\u305f\uff082026\/02\/01\uff09\r\n<img class=\"alignnone wp-image-10940 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg\" sizes=\"(max-width: 220px) 100vw, 220px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0.jpg 311w\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2014-07-05 0.43.51\" width=\"220\" height=\"192\" \/><\/strong><\/li>\r\n \t<li>\u300e\u304d\u3081\u308b!\u5171\u901a\u30c6\u30b9\u30c8 \u7269\u7406\u57fa\u790e \u6539\u8a02\u7248\u300f\uff08\u5b66\u7814\uff09\u2026\u3000\u9ad8\u6821\u7269\u7406\u306e\u53c2\u8003\u66f8\u3067\u3059\u3002\u30a4\u30e9\u30b9\u30c8\u3092\u591a\u304f\u3057\u3066\u30a4\u30e1\u30fc\u30b8\u304c\u6301\u3066\u308b\u3088\u3046\u306b\u63cf\u304d\u307e\u3057\u305f\u3002\u6388\u696d\u306b\u3064\u3044\u3066\u3044\u3051\u306a\u3044\u3001\u7269\u7406\u304c\u82e6\u624b\u3001\u305d\u3093\u306a\u751f\u5f92\u306b\u304a\u3059\u3059\u3081\u3067\u3059\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=45322\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u306f\u3053\u3061\u3089\u3002\r\n<img class=\"alignnone wp-image-45718 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg\" sizes=\"(max-width: 184px) 100vw, 184px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg 756w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c-300x269.jpg 300w\" alt=\"\" width=\"184\" height=\"165\" \/><\/li>\r\n<\/ul>\r\n<h3><span style=\"text-align: center;\">\u5404\u7a2eSNS\uff08\u66f4\u65b0\u60c5\u5831\u3092\u304a\u5c4a\u3051\uff01\uff09<\/span><\/h3>\r\n<p style=\"text-align: center;\">\u3010\u65e5\u672c\u8a9e\u3011<a style=\"text-align: center;\" href=\"https:\/\/twitter.com\/kuwako\">X(Twitter)<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.instagram.com\/science_seeds\/\">instagram<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.facebook.com\/kuwakolab\/\">Facebook<\/a>\u3000\u3010\u82f1\u8a9e\u3011<a style=\"text-align: center;\" href=\"https:\/\/bsky.app\/profile\/kagakunoneta.bsky.social\">BlueSky<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.threads.net\/@science_seeds?hl=ja\">Threads<\/a><\/p>\r\n\r\n<h3 style=\"text-align: center;\"><strong>Explore<\/strong><\/h3>\r\n<ul>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=30764\">\u697d\u3057\u3044\u5b9f\u9a13<\/a>\u2026\u304a\u5b50\u3055\u3093\u3068\u4e00\u7dd2\u306b\u5922\u4e2d\u306b\u306a\u308c\u308b\u30a4\u30c1\u30aa\u30b7\u306e\u79d1\u5b66\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u9ad8\u6821\u7269\u7406\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\u306e\u52d5\u753b\u6559\u6750\u3082\u7528\u610f\u3057\u307e\u3057\u305f\u3002<\/li>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=798\">\u7406\u79d1\u306e\u6559\u6750<\/a>\u2026 \u7406\u79d1\u6559\u5e2b\u3092\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\uff01\u6388\u696d\u306e\u8cea\u3092\u9ad8\u3081\u3001\u6e96\u5099\u3092\u52b9\u7387\u5316\u3059\u308b\u305f\u3081\u306e\u9078\u308a\u3059\u3050\u308a\u306e\u6559\u6750\u3092\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"https:\/\/www.youtube.com\/c\/kkuwako\">Youtube<\/a>\u2026\u79d1\u5b66\u5b9f\u9a13\u7b49\u306e\u52d5\u753b\u3092\u914d\u4fe1\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"https:\/\/music.youtube.com\/playlist?list=PLoK4ZvKN9S2NgpYIochcQs0aL-vrRB_Qw\">\u79d1\u5b66\u30e9\u30b8\u30aa<\/a>\u00a0\u2026\u79d1\u5b66\u30c8\u30d4\u30c3\u30af\u3092\u307b\u307c\u6bce\u65e5\u914d\u4fe1\u4e2d\uff01AI\u6280\u8853\u3092\u99c6\u4f7f\u3057\u3066\u4f5c\u6210\u3057\u305f\u300c\u8033\u3067\u697d\u3057\u3080\u79d1\u5b66\u300d\u3092\u304a\u5c4a\u3051\u3057\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"http:\/\/phys-edu.net\/wp\/?page_id=20940\">\u8b1b\u6f14<\/a>\u00a0\u2026\u5168\u56fd\u5404\u5730\u3067\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u30fb\u30b5\u30a4\u30a8\u30f3\u30b9\u30b7\u30e7\u30fc\u7b49\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"http:\/\/phys-edu.net\/wp\/?page_id=37\">About<\/a>\u00a0\u2026\u300c\u79d1\u5b66\u306e\u30cd\u30bf\u5e33\u300d\u306e\u30b3\u30f3\u30bb\u30d7\u30c8\u3084\u3001\u904b\u55b6\u8005\u3067\u3042\u308b\u6851\u5b50\u7814\u306e\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u30fb\u60f3\u3044\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/li>\r\n \t<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a>\u00a0\u2026\u5b9f\u9a13\u6559\u5ba4\u306e\u3054\u4f9d\u983c\u3001\u57f7\u7b46\u30fb\u8b1b\u6f14\u306e\u76f8\u8ac7\u3001\u79d1\u5b66\u76e3\u4fee\u7b49\u306f\u3053\u3061\u3089\u306e\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u304a\u5bc4\u305b\u304f\u3060\u3055\u3044\u3002<\/li>\r\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>T\u00e4m\u00e4 on Science Trainer Kuwako Ken. Joka p\u00e4iv\u00e4 on uusi koe. &#8220;Mink\u00e4 v\u00e4riseksi hanavesi muuttuu, kun siihe [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":63977,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","sns_share_botton_hide":"","vkExUnit_sns_title":"","vkexunit_cta_each_option":"","_lightning_design_setting":{"layout":"default"},"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1630],"tags":[],"class_list":["post-65835","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\/2026\/05\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-05-30-5.12.44.jpeg","jetpack-related-posts":[{"id":63945,"url":"https:\/\/phys-edu.net\/wp\/?p=63945&lang=fi","url_meta":{"origin":65835,"position":0},"title":"Onnistuu pilvisell\u00e4kin s\u00e4\u00e4ll\u00e4\uff01 T\u00e4ydellinen opas fotosynteesin kokeiluun vesirutan ja r\u00f6llihein\u00e4n avulla","author":"\u6851\u5b50 \u7814","date":"2026\u5e745\u670829\u65e5","format":false,"excerpt":"T\u00e4\u00e4ll\u00e4 kirjoittaa Science Trainer Kuwako Ken. 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\/2023\/06\/b57ccd5afc545daa0bf94a5014301299.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/06\/b57ccd5afc545daa0bf94a5014301299.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/06\/b57ccd5afc545daa0bf94a5014301299.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2023\/06\/b57ccd5afc545daa0bf94a5014301299.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":64932,"url":"https:\/\/phys-edu.net\/wp\/?p=64932&lang=fi","url_meta":{"origin":65835,"position":1},"title":"Laite, joka n\u00e4ytt\u00e4\u00e4 \u00e4\u00e4nen silmillesi \u2014 Styroksipalat leijuvat ilmassa Kundtin putkessa","author":"\u6851\u5b50 \u7814","date":"2026\u5e746\u670829\u65e5","format":false,"excerpt":"Olen Ken Kuwako, tiedevalmentaja. Joka p\u00e4iv\u00e4 on uu\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\/2021\/04\/a0611303d6eba47294762f1ff7a89003.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/04\/a0611303d6eba47294762f1ff7a89003.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/04\/a0611303d6eba47294762f1ff7a89003.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/04\/a0611303d6eba47294762f1ff7a89003.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/04\/a0611303d6eba47294762f1ff7a89003.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":65429,"url":"https:\/\/phys-edu.net\/wp\/?p=65429&lang=fi","url_meta":{"origin":65835,"position":2},"title":"Happi ei olekaan hapon l\u00e4hde! Lavoisier&#8217;n 300 vuotta vanha nime\u00e4misvirhe","author":"\u6851\u5b50 \u7814","date":"2026\u5e747\u670817\u65e5","format":false,"excerpt":"Olen tiedevalmentaja Ken Kuwako. Jokainen p\u00e4iv\u00e4 on\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\/01\/%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%88-2026-07-17-4.16.16.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/%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%88-2026-07-17-4.16.16.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/%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%88-2026-07-17-4.16.16.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/01\/%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%88-2026-07-17-4.16.16.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":60236,"url":"https:\/\/phys-edu.net\/wp\/?p=60236&lang=fi","url_meta":{"origin":65835,"position":3},"title":"Mit\u00e4 tapahtuu, kun happo kohtaa em\u00e4ksen? 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