{"id":53051,"date":"2025-09-24T04:52:05","date_gmt":"2025-09-23T19:52:05","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=53051"},"modified":"2025-09-24T04:52:05","modified_gmt":"2025-09-23T19:52:05","slug":"%e3%80%90ei-enaa-sekaannuksia%e3%80%91-kemian-resepti-massaprosenttipitoisuuden-ja-molaarisuuden-helppoon-muuntamiseen-normaliteetti-n-%c2%b7-ppm","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=53051&lang=fi","title":{"rendered":"\u3010Ei en\u00e4\u00e4 sekaannuksia!\u3011 Kemian resepti massaprosenttipitoisuuden ja molaarisuuden helppoon muuntamiseen (Normaliteetti N \u00b7 ppm)"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>Olen tiedekouluttaja Ken Kuwako. Jokainen p\u00e4iv\u00e4 on kokeilu.<\/strong><\/span><\/p>\n<p>Oletko koskaan miettinyt, paljonko on &#8220;suolaa ripaus&#8221;, kun luet ruokaohjetta? Kemian maailmassa on itse asiassa monia tapoja ilmaista &#8220;v\u00e4kevyys&#8221;, ja tiedemiehet k\u00e4ytt\u00e4v\u00e4t niit\u00e4 tilanteen mukaan. T\u00e4ll\u00e4 kertaa sukellamme kahden &#8220;v\u00e4kevyyden&#8221; yksik\u00f6n, koulun kokeista tutun massaprosenttipitoisuuden ja ammattimaisemman moolitilavuuspitoisuuden, v\u00e4liseen maailmaan. Kun osaat n\u00e4m\u00e4 laskut, kemian maailma tuntuu heti paljon l\u00e4heisemm\u00e4lt\u00e4 ja kokeet ovat hauskempia ja turvallisempia!<\/p>\n<p>L\u00f6yd\u00e4t ohjeet laimentamiseen <a href=\"https:\/\/phys-edu.net\/wp\/?p=38063\">t\u00e4\u00e4lt\u00e4<\/a>.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"yRZ4mWLqdE\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=38063\">\u5869\u9178\u30fb\u786b\u9178\u30fb\u30a2\u30f3\u30e2\u30cb\u30a2\u30fb\u5869\u5316\u9285\u306e\u5e0c\u91c8\u306e\u65b9\u6cd5\uff08\u5e0c\u91c8\u306e\u57fa\u672c\u3092\u62bc\u3055\u3048\u3088\u3046\uff01\uff5e\u85ac\u54c1\u306e\u6b63\u3057\u3044\u4f7f\u3044\u65b9\u3068\u6388\u696d\u6e96\u5099\uff5e\uff09<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8221;\u5869\u9178\u30fb\u786b\u9178\u30fb\u30a2\u30f3\u30e2\u30cb\u30a2\u30fb\u5869\u5316\u9285\u306e\u5e0c\u91c8\u306e\u65b9\u6cd5\uff08\u5e0c\u91c8\u306e\u57fa\u672c\u3092\u62bc\u3055\u3048\u3088\u3046\uff01\uff5e\u85ac\u54c1\u306e\u6b63\u3057\u3044\u4f7f\u3044\u65b9\u3068\u6388\u696d\u6e96\u5099\uff5e\uff09&#8221; &#8212; \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=38063&#038;embed=true#?secret=H6DZOQ4geP#?secret=yRZ4mWLqdE\" data-secret=\"yRZ4mWLqdE\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<h3>Pitoisuuden perusteet: ymm\u00e4rr\u00e4 yksik\u00f6iden erot<\/h3>\n<p>Koulukirjoissa k\u00e4ytet\u00e4\u00e4n usein massaprosenttipitoisuutta, mutta laboratorion oppaissa ja tieteellisiss\u00e4 julkaisuissa moolitilavuuspitoisuus on yleisempi. Hallitsemalla n\u00e4iden kahden yksik\u00f6n muuntamisen olet valmis kaikkeen. Laskin k\u00e4dess\u00e4 on aina turvallista ja k\u00e4tev\u00e4\u00e4!<\/p>\n<p>Perusajatus on sama molemmissa pitoisuuksissa.<\/p>\n<p style=\"text-align: center;\"><strong> Liuenneen aineen m\u00e4\u00e4r\u00e4 \u00f7 koko liuos <\/strong><\/p>\n<p>Ainoa ero on niiden &#8220;yksik\u00f6iss\u00e4&#8221;. Massaprosenttipitoisuudessa k\u00e4ytet\u00e4\u00e4n massaa (g).<\/p>\n<p style=\"text-align: center;\">Liuenneen aineen massa (g) \u00f7 liuoksen massa (g)<\/p>\n<p>Moolitilavuuspitoisuudessa puolestaan keskityt\u00e4\u00e4n hiukkasten m\u00e4\u00e4r\u00e4\u00e4n k\u00e4ytt\u00e4en mooleja (mol) ja tilavuutta (L).<\/p>\n<p style=\"text-align: center;\">Liuenneen aineen m\u00e4\u00e4r\u00e4 (mol) \u00f7 liuoksen tilavuus (L)<\/p>\n<p>Muunnetaan seuraavaksi 2 mol\/L suolahappoa massaprosenttipitoisuudeksi. <a href=\"https:\/\/direct.hpc-j.co.jp\/page\/hydrochloric_acid\">T\u00e4m\u00e4n sivun pikataulukon mukaan 2 mol\/L suolahappo on noin 7-prosenttista<\/a>. Tarkistetaan laskemalla, pit\u00e4\u00e4k\u00f6 se paikkansa!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-40647 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/c1609344dec9cb84015679a8a8c09dc3.jpg\" alt=\"\" width=\"455\" height=\"223\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/c1609344dec9cb84015679a8a8c09dc3.jpg 1474w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/c1609344dec9cb84015679a8a8c09dc3-300x147.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/c1609344dec9cb84015679a8a8c09dc3-1024x502.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/c1609344dec9cb84015679a8a8c09dc3-768x376.jpg 768w\" sizes=\"auto, (max-width: 455px) 100vw, 455px\" \/><\/p>\n<h3>K\u00e4yt\u00e4nt\u00f6\u00f6n! Moolitilavuuspitoisuudesta massaprosenttipitoisuuteen<\/h3>\n<p>Ensin ker\u00e4t\u00e4\u00e4n laskentaan tarvittavat tiedot. Suolahapon (HCl) molekyylipaino: Lis\u00e4t\u00e4\u00e4n atomien painot yhteen. Vety (H) on 1 ja kloori (Cl) on 35,5, joten 1 + 35,5 = 36,5. Suolahapon (2 mol\/L) tiheys: <a href=\"https:\/\/direct.hpc-j.co.jp\/page\/hydrochloric_acid\">Tietojen mukaan se on 1,03 g\/cm\u00b3<\/a>. T\u00e4m\u00e4 tarkoittaa, ett\u00e4 1 cm\u00b3 painaa 1,03 g.<\/p>\n<p>Otetaan laskentaan referenssiksi 1 L liuosta.<\/p>\n<p style=\"text-align: center;\">Liuenneen aineen m\u00e4\u00e4r\u00e4: 2 mol \u27f6 2 \u00d7 36,5 = 73 g<\/p>\n<p style=\"text-align: center;\">Liuos: 1 L = 1000 cm\u00b3 \u27f6 1000 \u00d7 1,03 g\/cm\u00b3 = 1030 g<\/p>\n<p>Olemme saaneet selville, ett\u00e4 1 L:aan liuosta (1030 g) on liuennut 73 g vetykloridia. Sijoitetaan t\u00e4m\u00e4 massaprosenttipitoisuuden kaavaan&#8230;<\/p>\n<p style=\"text-align: center;\">73 (g) \u00f7 1030 (g) = 0,070&#8230; eli noin 7 %!<\/p>\n<p>Tulos osuu hienosti yksiin pikataulukon arvon kanssa!<\/p>\n<h3>Kokeillaan toisin p\u00e4in! Massaprosenttipitoisuudesta moolitilavuuspitoisuuteen<\/h3>\n<p>Nyt yrit\u00e4mme k\u00e4\u00e4nt\u00e4\u00e4 laskutoimituksen. Kun muunnat yksik\u00f6t yksi kerrallaan, p\u00e4\u00e4set takaisin alkuun. Otetaan esimerkiksi 7 % suolahappo, jonka tiheys on 1,03 g\/mL, ja lasketaan sen moolitilavuuspitoisuus. Avain t\u00e4h\u00e4n on selvitt\u00e4\u00e4, kuinka monta moolia liuenneen aineen m\u00e4\u00e4r\u00e4\u00e4 on liuennut 1 L:aan liuosta.<\/p>\n<p>Ensin lasketaan 1 L liuoksen paino.<\/p>\n<p class=\"p1\" style=\"text-align: center;\"><span class=\"s1\">Liuos 1 L = 1000 mL \u27f6 1000 mL \u00d7 1,03 g\/mL = 1030 g<\/span><\/p>\n<p>Koska t\u00e4st\u00e4 7 % on liuenneen aineen massaa,<\/p>\n<p class=\"p1\" style=\"text-align: center;\"><span class=\"s1\">Liuenneen aineen massa 1030 g \u00d7 0,07 = 72,1 g<\/span><\/p>\n<p>Lopuksi, muunnetaan liuenneen aineen massa mooleiksi. Kun se jaetaan vetykloridin molekyylipainolla 36,5, saadaan<\/p>\n<p class=\"p1\" style=\"text-align: center;\"><span class=\"s1\">72,1 (<strong>g<\/strong>) \u00f7 36,5 (g\/mol) \u2252 1,97 (<strong>mol<\/strong>)<\/span><\/p>\n<p>Koska 1 L:aan liuosta on liuennut 1,97 moolia, pitoisuus on noin 2 mol\/L. Tulos on t\u00e4ydellinen!<\/p>\n<h3>K\u00e4tev\u00e4t laskurit<\/h3>\n<p>Suolahapolle ja natriumhydroksidille, joita k\u00e4ytet\u00e4\u00e4n usein, n\u00e4ytt\u00e4\u00e4 olevan olemassa pitoisuusmuunnosohjelmia. Voit k\u00e4ytt\u00e4\u00e4 niit\u00e4 tarkistukseen.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/keisan.casio.jp\/menu\/person\/TaikiIkekame\">https:\/\/keisan.casio.jp\/menu\/person\/TaikiIkekame<\/a><\/p>\n<p>Esimerkiksi suolahapon osalta voit kirjoittaa sivulle &#8220;7 %&#8221; ja se antaa tarkan arvon &#8220;1,981 mol\/L&#8221;.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/keisan.casio.jp\/exec\/user\/1480248881\">https:\/\/keisan.casio.jp\/exec\/user\/1480248881<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-40648 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/9457fbe2aec38817a78d6150c47bfc26.jpg\" alt=\"\" width=\"522\" height=\"220\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/9457fbe2aec38817a78d6150c47bfc26.jpg 1552w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/9457fbe2aec38817a78d6150c47bfc26-300x126.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/9457fbe2aec38817a78d6150c47bfc26-1024x432.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/9457fbe2aec38817a78d6150c47bfc26-768x324.jpg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/9457fbe2aec38817a78d6150c47bfc26-1536x647.jpg 1536w\" sizes=\"auto, (max-width: 522px) 100vw, 522px\" \/><\/p>\n<h3>\u3010Tietoisku \u2460\u3011 Mik\u00e4 on suolahapon ja vetykloridin ero?<\/h3>\n<p>N\u00e4m\u00e4 kaksi sekoitetaan usein, mutta &#8220;vetykloridi (HCl)&#8221; on huoneenl\u00e4mm\u00f6ss\u00e4 kaasu. &#8220;Suolahappo&#8221; on sen veteen liuennut muoto (vesiliuos). Itse asiassa mahassamme olevan mahahapon p\u00e4\u00e4ainesosa on suolahappo, joka auttaa sulattamaan ruokaa. Huomaa, ett\u00e4 &#8220;vetykloridi HCl&#8221; ei miss\u00e4\u00e4n nimess\u00e4 ole sama kuin &#8220;kloori Cl&#8221;.<\/p>\n<h3>\u3010Tietoisku \u2461\u3011 Mik\u00e4 on normaliteetti (N)?<\/h3>\n<p>On olemassa my\u00f6s yksikk\u00f6 nimelt\u00e4 &#8220;normaliteetti (N)&#8221;. Se saadaan kertomalla moolitilavuuspitoisuus kyseisen hapon tai em\u00e4ksen &#8220;voiman numerolla&#8221; eli ekvivalenttiluvulla. Esimerkiksi suolahapon (HCl) ekvivalenttiluku on 1, joten 1 mol\/L vastaa 1 N. Toisaalta rikkihapon (H\u2082SO\u2084) ekvivalenttiluku on 2, joten 1 mol\/L on 2 N. Se on k\u00e4tev\u00e4 yksikk\u00f6, kun halutaan vertailla happojen ja em\u00e4sten reaktiivisuutta intuitiivisesti. Lis\u00e4tietoja l\u00f6yd\u00e4t <a href=\"https:\/\/labchem-wako.fujifilm.com\/jp\/question\/013355.html\">t\u00e4\u00e4lt\u00e4<\/a>.<\/p>\n<h3>\u3010Tietoisku \u2462\u3011 Paljonko on ppm?<\/h3>\n<p>&#8220;ppm&#8221; on lyhenne sanoista &#8220;parts per million&#8221;, eli &#8220;miljoonasosa&#8221;. Siin\u00e4 miss\u00e4 prosentti on sadasosa, ppm on miljoonasosa. Sit\u00e4 k\u00e4ytet\u00e4\u00e4n ilmaisemaan hyvin pieni\u00e4 pitoisuuksia.<\/p>\n<p class=\"p1\" style=\"text-align: center;\"><span class=\"s1\">Liuenneen aineen massa (mg) \/ liuoksen massa (kg)<\/span><\/p>\n<p>1 ppm tarkoittaa, ett\u00e4 1 kg:ssa (1000 g) liuosta on liuennut vain 1 mg liuenneen aineen m\u00e4\u00e4r\u00e4\u00e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-40649 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/ab56ebbb820e6c118f830babeed77f85.jpg\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/ab56ebbb820e6c118f830babeed77f85.jpg 748w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/ab56ebbb820e6c118f830babeed77f85-214x300.jpg 214w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/ab56ebbb820e6c118f830babeed77f85-729x1024.jpg 729w\" alt=\"\" width=\"379\" height=\"532\" \/><\/p>\n<p>Kuinka pieni t\u00e4m\u00e4 oikeastaan onkaan&#8230;<\/p>\n<ul>\n<li><strong>Vain 1 g tonnin painossa<\/strong><\/li>\n<li>Vain 1 euro sentti\u00e4 miljoonaan euroon verrattuna<\/li>\n<li>Kuulin er\u00e4\u00e4ss\u00e4 seminaarissa, ett\u00e4 vuoden alussa l\u00e4hetett\u00e4vien uuden vuoden postikorttien p\u00e4\u00e4palkinnon voittamisen todenn\u00e4k\u00f6isyys on noin 1 ppm! (<a href=\"https:\/\/seikatuhack.com\/otosidama-nenngajyou-keihinn\/#2020\">Tarkistin asian<\/a>)<\/li>\n<\/ul>\n<p>N\u00e4in ajateltuna voi todella ymm\u00e4rt\u00e4\u00e4, kuinka uskomattoman pienest\u00e4 suhteesta on kyse.<\/p>\n<h3>Harjoitusteht\u00e4v\u00e4: Muunnetaan natriumhydroksidilla<\/h3>\n<p>Lopuksi harjoitellaan natriumhydroksidilla. Muunnetaan 2-prosenttinen natriumhydroksidiliuos moolitilavuuspitoisuudeksi. <a href=\"https:\/\/direct.hpc-j.co.jp\/page\/sodium_hydroxide\">T\u00e4m\u00e4n taulukon mukaan tiheys on 1,02 g\/mL (koska artikkelin 1,03 g\/mL arvo on suolahapolle). Vastauksen pit\u00e4isi olla 0,51 mol\/L<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-40651 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/11546efaf50b9eac41e9a345fa77f498.jpg\" alt=\"\" width=\"476\" height=\"366\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/11546efaf50b9eac41e9a345fa77f498.jpg 1048w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/11546efaf50b9eac41e9a345fa77f498-300x230.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/11546efaf50b9eac41e9a345fa77f498-1024x786.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/11546efaf50b9eac41e9a345fa77f498-768x589.jpg 768w\" sizes=\"auto, (max-width: 476px) 100vw, 476px\" \/><\/p>\n<p>Lasketaan ensin 1 L liuoksen massa.<\/p>\n<p style=\"text-align: center;\">1000 mL \u00d7 1,02 g\/mL = 1020 g<\/p>\n<p>Koska 2 % t\u00e4st\u00e4 on liuenneen aineen m\u00e4\u00e4r\u00e4,<\/p>\n<p style=\"text-align: center;\">1020 g \u00d7 0,02 = 20,4 g<\/p>\n<p>Muunnetaan t\u00e4m\u00e4 mooleiksi. Natriumhydroksidin (NaOH) molekyylipaino on 40, joten<\/p>\n<p style=\"text-align: center;\">20,4 g \/ 40 (g\/mol) = 0,51 mol<\/p>\n<p>Ja koska se on 0,51 mol per 1 L, moolitilavuuspitoisuus on 0,51 mol\/L. Hienosti se t\u00e4sm\u00e4\u00e4 taulukon arvoon!<br \/>\nT\u00e4m\u00e4 laskuri antaa saman tuloksen.<\/p>\n<p>Natriumhydroksidin pitoisuusmuunnin: <a href=\"https:\/\/keisan.casio.jp\/exec\/user\/1480256880\">https:\/\/keisan.casio.jp\/exec\/user\/1480256880<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-40653 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/353fee50af3e6fba1a9c91cc3c632920.jpg\" alt=\"\" width=\"559\" height=\"234\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/353fee50af3e6fba1a9c91cc3c632920.jpg 1548w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/353fee50af3e6fba1a9c91cc3c632920-300x126.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/353fee50af3e6fba1a9c91cc3c632920-1024x429.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/353fee50af3e6fba1a9c91cc3c632920-768x321.jpg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2021\/09\/353fee50af3e6fba1a9c91cc3c632920-1536x643.jpg 1536w\" sizes=\"auto, (max-width: 559px) 100vw, 559px\" \/><\/p>\n<h3>Viitteet<\/h3>\n<p>Suolahappo, jota k\u00e4ytet\u00e4\u00e4n paljon kouluissa, on k\u00e4tev\u00e4 laimentaa v\u00e4kev\u00e4st\u00e4 suolahaposta. Esimerkiksi 10-prosenttisen suolahapon valmistamiseksi, v\u00e4kev\u00e4\u00e4n suolahappoon suhteessa 1:3,2 lis\u00e4t\u00e4\u00e4n vett\u00e4. Jos kaikki 500 cm\u00b3 v\u00e4kev\u00e4\u00e4 suolahappoa halutaan muuntaa 10-prosenttiseksi, se pit\u00e4isi laimentaa 1600 cm\u00b3 vedell\u00e4, ja se on hyv\u00e4 s\u00e4ilytt\u00e4\u00e4 esimerkiksi 3 litran <a href=\"https:\/\/amzn.to\/3seeikc\">polyeteenis\u00e4ili\u00f6ss\u00e4 (amazon)<\/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: 184px; margin: 0px; padding: 5px; text-align: center; overflow: hidden;\">\n<table>\n<tbody>\n<tr>\n<td style=\"width: 80px;\"><a style=\"word-wrap: break-word;\" href=\"https:\/\/hb.afl.rakuten.co.jp\/ichiba\/2c6a2576.25faaa1b.2c6a2577.0abda625\/?pc=https%3A%2F%2Fitem.rakuten.co.jp%2Fnagamineshouten%2Fpo-3%2F&amp;link_type=picttext&amp;ut=eyJwYWdlIjoiaXRlbSIsInR5cGUiOiJwaWN0dGV4dCIsInNpemUiOiI4MHg4MCIsIm5hbSI6MSwibmFtcCI6InJpZ2h0IiwiY29tIjoxLCJjb21wIjoiZG93biIsInByaWNlIjoxLCJib3IiOjEsImNvbCI6MSwiYmJ0biI6MSwicHJvZCI6MCwiYW1wIjpmYWxzZX0%3D\" target=\"_blank\" rel=\"nofollow sponsored noopener\"><img decoding=\"async\" style=\"margin: 2px;\" title=\"[\u5546\u54c1\u4fa1\u683c\u306b\u95a2\u3057\u307eley on, linkki on luotu ja nykyinen hinta saattavat olla erilaiset.]\" src=\"https:\/\/hbb.afl.rakuten.co.jp\/hgb\/2c6a2576.25faaa1b.2c6a2577.0abda625\/?me_id=1240371&amp;item_id=10000489&amp;pc=https%3A%2F%2Fthumbnail.image.rakuten.co.jp%2F%400_mall%2Fnagamineshouten%2Fcabinet%2Fporikan%2F3-1.jpg%3F_ex%3D80x80&amp;s=80x80&amp;t=picttext\" alt=\"[\u5546\u54c1\u4fa1\u683c\u306b\u95a2\u3057\u307eley on, linkki on luotu ja nykyinen hinta saattavat olla erilaiset.]\" border=\"0\" \/><\/a><\/td>\n<td style=\"vertical-align: top; width: 88px;\">\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\/2c6a2576.25faaa1b.2c6a2577.0abda625\/?pc=https%3A%2F%2Fitem.rakuten.co.jp%2Fnagamineshouten%2Fpo-3%2F&amp;link_type=picttext&amp;ut=eyJwYWdlIjoiaXRlbSIsInR5cGUiOiJwaWN0dGV4dCIsInNpemUiOiI4MHg4MCIsIm5hbSI6MSwibmFtcCI6InJpZ2h0IiwiY29tIjoxLCJjb21wIjoiZG93biIsInByaWNlIjoxLCJib3IiOjEsImNvbCI6MSwiYmJ0biI6MSwicHJvZCI6MCwiYW1wIjpmYWxzZX0%3D\" target=\"_blank\" rel=\"nofollow sponsored noopener\">Polyeteenis\u00e4ili\u00f6 3L 250g<\/a><br \/>\nHinta: 935 jeni\u00e4 (sis. verot, sis. toimitus) <span style=\"color: #bbb;\">(2022\/10\/21)<\/span><\/p>\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<h3>Yhteydenotot ja tiedustelut<\/h3>\n<p>Haluan tehd\u00e4 tieteen ihmeist\u00e4 ja hauskuudesta helpommin l\u00e4hestytt\u00e4vi\u00e4! Olen koonnut t\u00e4nne yksinkertaisia ja hauskoja tiedekokeita, joita voi tehd\u00e4 kotona. Etsi lis\u00e4\u00e4 tietoa!<br \/>\n\u30fbTietoa minusta, Ken Kuwakosta, l\u00f6yd\u00e4t <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n\u30fbErilaisia tiedusteluja (kirjoittaminen, luennot, tiedekerhot, TV-konsultointi, esiintyminen jne.) varten ota yhteytt\u00e4 <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4ll\u00e4<\/a><br \/>\n<span class=\"s2\">\u30fbP\u00e4ivit\u00e4n uusia artikkeleita <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 temppukanava<\/a> jakaa kokeiluvideoita!<\/p>\n<h3>\uff15\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p>\u30ad\u30fc\u30f3\u3068\u51b7\u3048\u308b\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\uff01\u6c17\u6e29\u304c\u4e0a\u304c\u3063\u3066\u304f\u308b\u3053\u306e\u6642\u671f\u30fb\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\u3092\u4f7f\u3063\u305f\u6607\u83ef\u30fb\u51dd\u7d50\u30fb\u7b49\u901f\u5ea6\u76f4\u7dda\u904b\u52d5\u306e\u5b9f\u9a13\u306f\u3044\u304b\u304c\uff1f<\/p>\r\n<p><img class=\"alignnone wp-image-39516 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe.jpg\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe.jpg 1406w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-300x168.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-1024x572.jpg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-768x429.jpg 768w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/03\/0618612becc032a60bdda50090ccccbe-320x180.jpg 320w\" alt=\"\" width=\"453\" height=\"253\" \/><\/p>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=39513\">\u6db2\u4f53\u30bc\u30ed\uff01\u30c9\u30e9\u30a4\u30a2\u30a4\u30b9\u304c\u6d88\u3048\u308b\u307e\u3067\u306e\uff13\u6642\u9593\u3092\u79d1\u5b66\u3059\u308b\uff08\u6607\u83ef\u30fb\u51dd\u7d50\u30fb\u7b49\u901f\u5ea6\u76f4\u7dda\u904b\u52d5\uff09<\/a><\/p>\r\n<h3 style=\"text-align: left;\"><span style=\"font-size: medium;\"><b><strong>\u30c6\u30ec\u30d3\u756a\u7d44\u76e3\u4fee\u30fb\u30a4\u30d9\u30f3\u30c8\u7b49\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/span><\/h3>\r\n<ul>\r\n<li>4\u670830\u65e5\uff08\u6728\uff09\u300cTHE\u7a81\u7834\u30d5\u30a1\u30a4\u30eb\u300d\uff08\u65e5\u672c\u30c6\u30ec\u30d3\uff09\u306e<a href=\"https:\/\/phys-edu.net\/wp\/?p=62906\">\u79d1\u5b66\u76e3\u4fee\u3092\u62c5\u5f53\u3057\u307e\u3057\u305f<\/a>\u3002<\/li>\r\n<li>5\u67088\u65e5\uff08\u91d1\uff09<a href=\"https:\/\/phys-edu.net\/wp\/?p=62629\">\u7406\u79d1\u6559\u80b2\u30cb\u30e5\u30fc\u30b9<\/a>\u3092\u62c5\u5f53\u3057\u307e\u3057\u305f\u3002<\/li>\r\n<li>6\u670814\u65e5\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<li>6\u670826\u65e5\uff08\u91d1\uff09\u3000\u5343\u8449\u5927\u5b66\u306e\u516c\u958b\u7814\u7a76\u4f1a\uff08\u4e2d\u5b66\u7406\u79d1\u306b\u3064\u3044\u3066\u6388\u696d\u516c\u958b\u4e88\u5b9a\uff09<\/li>\r\n<li>7\u670818\u65e5\uff08\u571f\uff09\u3000<a href=\"https:\/\/phys-edu.net\/wp\/?p=60018\">\u6559\u54e1\u5411\u3051\u5b9f\u9a13\u8b1b\u7fd2\u4f1a\u300c\u30ca\u30ea\u30ab\u30ab\u30b5\u30a4\u30a8\u30f3\u30b9\u30a2\u30ab\u30c7\u30df\u30fc\u300d\u306e\u8b1b\u5e2b\u3092\u3057\u307e\u3059<\/a>\u3002\u304a\u4f1a\u3044\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\r\n<\/ul>\r\n<h3><b>\u66f8\u7c4d<strong>\u306e\u304a\u77e5\u3089\u305b<\/strong><\/b><\/h3>\r\n<ul>\r\n<li>\u300e\u5927\u4eba\u306e\u305f\u3081\u306e\u9ad8\u6821\u7269\u7406\u5fa9\u7fd2\u5e33\u300f\uff08\u8b1b\u8ac7\u793e\uff09\u2026\u4e00\u822c\u5411\u3051\u306b\u65e5\u5e38\u306e\u7269\u7406\u306b\u3064\u3044\u3066\u516c\u5f0f\u3092\u5143\u306b\u7d10\u89e3\u304d\u307e\u3057\u305f\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=1827\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u3067\u306f\u5b9f\u9a13\u3092\u591a\u6570\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u203b\u5897\u5237\u304c\u304b\u304b\u308a\uff16\u5237\u3068\u306a\u308a\u307e\u3057\u305f\uff082026\/02\/01\uff09<br \/><img class=\"alignnone wp-image-10940 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg\" sizes=\"(max-width: 220px) 100vw, 220px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0-300x262.jpg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2013\/12\/0811159a99f69eeff1a357e3daed84e0.jpg 311w\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2014-07-05 0.43.51\" width=\"220\" height=\"192\" \/><br \/><\/strong><\/li>\r\n<li>\u300e\u304d\u3081\u308b!\u5171\u901a\u30c6\u30b9\u30c8 \u7269\u7406\u57fa\u790e \u6539\u8a02\u7248\u300f\uff08\u5b66\u7814\uff09\u2026\u3000\u9ad8\u6821\u7269\u7406\u306e\u53c2\u8003\u66f8\u3067\u3059\u3002\u30a4\u30e9\u30b9\u30c8\u3092\u591a\u304f\u3057\u3066\u30a4\u30e1\u30fc\u30b8\u304c\u6301\u3066\u308b\u3088\u3046\u306b\u63cf\u304d\u307e\u3057\u305f\u3002\u6388\u696d\u306b\u3064\u3044\u3066\u3044\u3051\u306a\u3044\u3001\u7269\u7406\u304c\u82e6\u624b\u3001\u305d\u3093\u306a\u751f\u5f92\u306b\u304a\u3059\u3059\u3081\u3067\u3059\u3002<a href=\"https:\/\/phys-edu.net\/wp\/?p=45322\">\u7279\u8a2d\u30b5\u30a4\u30c8<\/a>\u306f\u3053\u3061\u3089\u3002<br \/><img class=\"alignnone wp-image-45718 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg\" sizes=\"(max-width: 184px) 100vw, 184px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c.jpg 756w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2024\/04\/dc1da64a8c8d1422062b4867c0607a1c-300x269.jpg 300w\" alt=\"\" width=\"184\" height=\"165\" \/><\/li>\r\n<\/ul>\r\n<h3><span style=\"text-align: center;\">\u5404\u7a2eSNS\uff08\u66f4\u65b0\u60c5\u5831\u3092\u304a\u5c4a\u3051\uff01\uff09<\/span><\/h3>\r\n<p style=\"text-align: center;\"><a style=\"text-align: center;\" href=\"https:\/\/twitter.com\/kuwako\">X(Twitter)<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.instagram.com\/science_seeds\/\">instagram<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.facebook.com\/kuwakolab\/\">Facebook<\/a>\uff08\u65e5\u672c\u8a9e\uff09<\/p>\r\n<p style=\"text-align: center;\"><a style=\"text-align: center;\" href=\"https:\/\/bsky.app\/profile\/kagakunoneta.bsky.social\">BlueSky<\/a><span style=\"text-align: center;\">\uff0f<\/span><a style=\"text-align: center;\" href=\"https:\/\/www.threads.net\/@science_seeds?hl=ja\">Threads<\/a>\uff08\u82f1\u8a9e\uff09<\/p>\r\n<h3 style=\"text-align: center;\"><strong>Explore<\/strong><\/h3>\r\n<ul>\r\n<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<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<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<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<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<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<li><a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a> \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","protected":false},"excerpt":{"rendered":"<p>Olen tiedekouluttaja Ken Kuwako. Jokainen p\u00e4iv\u00e4 on kokeilu. Oletko koskaan miettinyt, paljonko on &#8220;suola [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":41309,"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-53051","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\/e5cd684ec3b3da62522a443124fc2e5e.jpg","jetpack-related-posts":[{"id":60123,"url":"https:\/\/phys-edu.net\/wp\/?p=60123&lang=fi","url_meta":{"origin":53051,"position":0},"title":"Sitruunan puristus on kemian koe! Ruokap\u00f6yt\u00e4 muuttuu tiedelaboratorioksi (Neutraloituminen)","author":"\u6851\u5b50 \u7814","date":"2026\u5e742\u67086\u65e5","format":false,"excerpt":"Tervehdys, olen tiedevalmentaja Ken Kuwako. Joka p\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\/09\/%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%88-2026-02-06-4.47.12.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/09\/%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%88-2026-02-06-4.47.12.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/09\/%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%88-2026-02-06-4.47.12.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/09\/%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%88-2026-02-06-4.47.12.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/09\/%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%88-2026-02-06-4.47.12.jpeg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2022\/09\/%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%88-2026-02-06-4.47.12.jpeg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":60236,"url":"https:\/\/phys-edu.net\/wp\/?p=60236&lang=fi","url_meta":{"origin":53051,"position":1},"title":"Mit\u00e4 tapahtuu, kun happo kohtaa em\u00e4ksen? Tee neutralisaation kristallit \u2013 n\u00e4kyv\u00e4\u00e4 kemian draamaa (suolahappo ja natriumhydroksidi)","author":"\u6851\u5b50 \u7814","date":"2026\u5e742\u67088\u65e5","format":false,"excerpt":"Tervehdys! Olen luonnontieteiden valmentaja Ken Ku\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\/2026\/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%88-2026-02-08-5.30.53.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/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%88-2026-02-08-5.30.53.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/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%88-2026-02-08-5.30.53.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/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%88-2026-02-08-5.30.53.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/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%88-2026-02-08-5.30.53.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":58901,"url":"https:\/\/phys-edu.net\/wp\/?p=58901&lang=fi","url_meta":{"origin":53051,"position":2},"title":"Ravista ja ihastu! Oppitunnin sytytt\u00e4v\u00e4 kemian taika \u2013 Signaali- ja pelireaktio","author":"\u6851\u5b50 \u7814","date":"2026\u5e741\u670816\u65e5","format":false,"excerpt":"Hei, olen luonnontieteiden valmentaja Ken Kuwako. \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\/07\/60251d27fa7989654d744610379f5a50.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/07\/60251d27fa7989654d744610379f5a50.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/07\/60251d27fa7989654d744610379f5a50.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/07\/60251d27fa7989654d744610379f5a50.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":53956,"url":"https:\/\/phys-edu.net\/wp\/?p=53956&lang=fi","url_meta":{"origin":53051,"position":3},"title":"Poksahtava kaasu ja sinkin arvoitus: Tee oma vetykoe kotona!","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u67087\u65e5","format":false,"excerpt":"Tervehdys, olen Ken Kuwako, tiedevalmentaja. 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