{"id":68648,"date":"2026-10-20T04:27:44","date_gmt":"2026-10-19T19:27:44","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=68648"},"modified":"2026-10-20T04:27:44","modified_gmt":"2026-10-19T19:27:44","slug":"mille-tahroille-happamat-puhdistusaineet-tepsivat-ja-miksi-siivouksen-tiede","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=68648&lang=fi","title":{"rendered":"Mille tahroille happamat puhdistusaineet tepsiv\u00e4t ja miksi? (Siivouksen tiede)"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>Moi, olen tiedevalmentaja Ken Kuwako. Meill\u00e4 jokainen p\u00e4iv\u00e4 on koe.<\/strong><\/span><\/p>\n<p>Siivouksen tiedett\u00e4 k\u00e4sittelev\u00e4n yhteenvetoartikkelin l\u00f6yd\u00e4t t\u00e4\u00e4lt\u00e4.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"8zNm3OKc2H\"><p><a href=\"https:\/\/phys-edu.net\/wp\/?p=60013\">\u6c5a\u308c\u306f\u300c\u843d\u3068\u3059\u300d\u306e\u3067\u306f\u306a\u304f\u300c\u5909\u8eab\u300d\u3055\u305b\u308b\uff01\uff1f\u6d17\u5264\u306e\u9a5a\u7570\u306e\u5316\u5b66\uff08\u304a\u6383\u9664\u306e\u5316\u5b66\uff09<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201c\u6c5a\u308c\u306f\u300c\u843d\u3068\u3059\u300d\u306e\u3067\u306f\u306a\u304f\u300c\u5909\u8eab\u300d\u3055\u305b\u308b\uff01\uff1f\u6d17\u5264\u306e\u9a5a\u7570\u306e\u5316\u5b66\uff08\u304a\u6383\u9664\u306e\u5316\u5b66\uff09\u201d \u2014 \u79d1\u5b66\u306e\u30cd\u30bf\u5e33\" src=\"https:\/\/phys-edu.net\/wp\/?p=60013&amp;embed=true#?secret=UiXzXGcPiD#?secret=8zNm3OKc2H\" data-secret=\"8zNm3OKc2H\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>Olet varmasti kuullut sanat happo ja em\u00e4s. Alkali tarkoittaa em\u00e4st\u00e4 silloin, kun puhutaan nimenomaan vesiliuoksista. Siivouksessa k\u00e4ytett\u00e4vist\u00e4 em\u00e4ksisist\u00e4 (alkalisista) aineista vahvin on natriumhydroksidi, ja turvallisempia vaihtoehtoja ovat esimerkiksi <strong>natriumvetykarbonaatti eli ruokasooda (pH 8,2\u20138,4), natriumkarbonaatti eli sooda (pH 11\u201312) ja natriumseskvikarbonaatti (pH noin 9,8; sen voi ajatella olevan ruokasoodan ja soodan yhdistelm\u00e4)<\/strong>.<\/p>\n<h2>Happamat puhdistusaineet (kalkkisaostumat)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-60221 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-08-5.17.01.jpeg\" alt=\"\" width=\"340\" height=\"405\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-08-5.17.01.jpeg 1084w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-08-5.17.01-252x300.jpeg 252w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-08-5.17.01-860x1024.jpeg 860w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-08-5.17.01-768x914.jpeg 768w\" sizes=\"auto, (max-width: 340px) 100vw, 340px\" \/><\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/amzn.to\/4r3I4on\">Amazon: sitruunahappo<\/a><\/p>\n<p data-path-to-node=\"15\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-60215 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-08-5.03.01.jpeg\" alt=\"\" width=\"300\" height=\"370\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-08-5.03.01.jpeg 858w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-08-5.03.01-243x300.jpeg 243w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-08-5.03.01-829x1024.jpeg 829w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-08-5.03.01-768x949.jpeg 768w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p style=\"text-align: center;\" data-path-to-node=\"15\"><a href=\"https:\/\/amzn.to\/4r3I4on\">Sitruunahappo<\/a><\/p>\n<p style=\"text-align: center;\" data-path-to-node=\"15\">Jauhemainen sitruunahappo on edullisempaa. Liuota se veteen ennen k\u00e4ytt\u00f6\u00e4.<\/p>\n<p>Monet sitke\u00e4t tahrat ovat luonteeltaan <strong>huonosti veteen liukenevia<\/strong>. Tyypillinen esimerkki on kylpyhuoneen peilin valkoinen kalkkikerrostuma. Sit\u00e4 kutsutaan metallitahraksi, mill\u00e4 tarkoitetaan huonosti veteen liukenevia kalsium- ja magnesiumsuoloja sek\u00e4 rautaoksideja. Ammattilaiset puhuvat kalkkikerrostumasta englanniksi nimell\u00e4 &#8220;scale&#8221;, eli suomeksi karkeasti \u201dkattilakivest\u00e4\u201d.<\/p>\n<p>Hanavesi sis\u00e4lt\u00e4\u00e4 pieni\u00e4 m\u00e4\u00e4ri\u00e4 liuenneita mineraaleja, kuten kalsium- ja magnesiumioneja. Kun vesipisara haihtuu, vain vesi l\u00e4htee ilmaan h\u00f6yryn\u00e4 ja j\u00e4ljelle j\u00e4\u00e4 kalsiumkarbonaattia ja magnesiumkarbonaattia. Juuri ne muodostavat valkoiset, suomumaiset kalkkij\u00e4\u00e4m\u00e4t. Kotona niit\u00e4 kertyy helposti vedenkeittimeen, kylpyhuoneen peileihin ja vessanp\u00f6nt\u00f6n vesivirtauksen kohtaan.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-60536 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-15-5.08.31.jpeg\" alt=\"\" width=\"355\" height=\"454\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-15-5.08.31.jpeg 1064w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-15-5.08.31-235x300.jpeg 235w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-15-5.08.31-801x1024.jpeg 801w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-15-5.08.31-768x982.jpeg 768w\" sizes=\"auto, (max-width: 355px) 100vw, 355px\" \/><\/p>\n<p style=\"text-align: center;\">T\u00e4ss\u00e4 on kalkkia peiliss\u00e4. Se ei l\u00e4hde pois edes tavallisella neutraalilla puhdistusaineella pyyhkim\u00e4ll\u00e4.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-67053 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.40.jpeg\" alt=\"\" width=\"369\" height=\"267\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.40.jpeg 994w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.40-300x217.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.40-768x555.jpeg 768w\" sizes=\"auto, (max-width: 369px) 100vw, 369px\" \/><\/p>\n<p style=\"text-align: center;\">Kalkkia vessassa. Se on kovaa kuin kivi eik\u00e4 irtoa mill\u00e4\u00e4n.<\/p>\n<p>Rautaioni puolestaan on liuenneena v\u00e4rit\u00f6n\u00e4 rauta(II)ionina Fe2+, mutta hapettuessaan siit\u00e4 tulee rauta(III)ioni Fe3+. Se on ruskea ja liukenee huonommin. Kun siit\u00e4 lopulta muodostuu ruosteeksi kutsuttua rauta(III)oksidia Fe2O3, se ei liukene veteen lainkaan.<\/p>\n<h3>Hapoillakin on vahvuutensa ja heikkoutensa! Kannattaa tuntea eri happotyypit<\/h3>\n<p>Likaa poistettaessa k\u00e4ytet\u00e4\u00e4n usein happoja. Kemiallisen reaktion ydin on t\u00e4ss\u00e4 <strong>hapon ja em\u00e4ksisen karbonaatin v\u00e4linen neutraloituminen ja hajoaminen<\/strong>. Kalkin p\u00e4\u00e4ainesosa kalsiumkarbonaatti on kemiallisesti heikosti em\u00e4ksinen suola. Kun siihen lis\u00e4t\u00e4\u00e4n happamaa ainetta, kuten sitruunahappoa tai etikkahappoa, se hajoaa seuraavan reaktion mukaisesti:<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-67177\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-05-7.21.51.jpeg\" alt=\"\" width=\"304\" height=\"32\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-05-7.21.51.jpeg 682w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-05-7.21.51-300x32.jpeg 300w\" sizes=\"auto, (max-width: 304px) 100vw, 304px\" \/><\/p>\n<p class=\"p1\">Kun kalsiumkarbonaatti reagoi hapon kanssa, se hajoaa veteen helposti liukenevaksi kalsiumioniksi, vedeksi ja hiilidioksidikupliksi. Kiinte\u00e4 kalkki muuttuu veteen liukenevaan muotoon, joten sen voi huuhdella pois.<\/p>\n<p style=\"padding-left: 40px;\">Tunnetuin esimerkki t\u00e4st\u00e4 on kokeilu, jossa raaka kananmuna upotetaan etikkaan. Kuori (kalsiumkarbonaattia) liukenee pois, ja j\u00e4ljelle j\u00e4\u00e4 pehme\u00e4, kimmoisa ja l\u00e4pikuultava \u201dluurankomuna\u201d (etikkamuna).<\/p>\n<p><iframe loading=\"lazy\" title=\"\u3010\u5b9f\u9a13\u52d5\u753b\u3011\u30b9\u30b1\u30eb\u30c8\u30f3\u305f\u307e\u3054\u3092\u4f5c\u3063\u3066\u307f\u3088\u3046\" width=\"1140\" height=\"641\" src=\"https:\/\/www.youtube.com\/embed\/rRONv4tyjik?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<ol>\n<li style=\"list-style-type: none;\">\n<ol>\n<li class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-hveid=\"CAIIAAgACAYQFQ\" data-copy-service-computed-style=\"font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);\"><span class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-copy-service-computed-style=\"font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);\">Laita raaka muna astiaan ja kaada p\u00e4\u00e4lle runsaasti etikkaa.<!--TgQPHd|||[]--><\/span><!--TgQPHd|||[]--><\/li>\n<li class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-hveid=\"CAIIAAgACAYQFg\" data-copy-service-computed-style=\"font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);\"><span class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-copy-service-computed-style=\"font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);\">Aseta kansi l\u00f6yh\u00e4sti p\u00e4\u00e4lle tai peit\u00e4 astia kelmulla ja j\u00e4t\u00e4 j\u00e4\u00e4kaappiin tai viile\u00e4\u00e4n ja pime\u00e4\u00e4n paikkaan <strong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-copy-service-computed-style=\"font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);\">2\u20133 p\u00e4iv\u00e4ksi<!--TgQPHd|||[]--><\/strong>.<!--TgQPHd|||[]--><\/span><!--TgQPHd|||[]--><\/li>\n<li class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-hveid=\"CAIIAAgACAYQFw\" data-copy-service-computed-style=\"font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);\"><span class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-copy-service-computed-style=\"font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);\">Kun kuori on liuennut, nosta muna pois ja huuhtele pinnalle j\u00e4\u00e4nyt ohut kalvo varovasti pois hanan heikolla vesisuihkulla.<\/span><\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<p style=\"padding-left: 40px;\">Munankuoren p\u00e4\u00e4ainesosa kalsiumkarbonaatti reagoi etikan sis\u00e4lt\u00e4m\u00e4n etikkahapon kanssa, jolloin muodostuu hiilidioksidikuplia ja kuori liukenee v\u00e4hitellen pois.<\/p>\n<p>Kaikki hapot eiv\u00e4t kuitenkaan liuota likaa yht\u00e4 hyvin. Hapon tyypist\u00e4 riippuu, <b>mit\u00e4 likaa se liuottaa ja mit\u00e4 ei<\/b>, joten niiden ominaisuudet kannattaa tuntea.<\/p>\n<h4>Suolahappo on kaikkien alojen taituri, etikkahappo ja sitruunahappo ovat joissakin asioissa heikompia<\/h4>\n<p>Suolahappo esimerkiksi liuottaa hyvin sek\u00e4 <b>rauta(III)hydroksidia<\/b> ett\u00e4 m\u00e4rk\u00e4tilojen valkoisen lian varsinaista aiheuttajaa, <b>kalsiumkarbonaattia<\/b>.<\/p>\n<p><strong>Sitruunahappo on turvallinen orgaaninen happo.<\/strong> Se on erinomainen kalsiumkarbonaatin liuottaja, mutta rauta(III)hydroksidiin sen teho ei ole kovin hyv\u00e4. Lis\u00e4ksi se pit\u00e4\u00e4 huuhdella pois heti k\u00e4sittelyn j\u00e4lkeen, sill\u00e4 muuten lika voi saostua takaisin. Jos sitruunahapolla siivoamisen j\u00e4lkeen j\u00e4tt\u00e4\u00e4 pinnan pitk\u00e4ksi aikaa huuhtelematta, voi synty\u00e4 <b>kalsiumsitraattia<\/b>, joka on veteen liukenematon suola. Silloin lika muuttuu viel\u00e4 vaikeammin poistettavaksi kuin se oli alun perin. Sitruunahapolla siivotessa t\u00e4rkeint\u00e4 on <b>olla j\u00e4tt\u00e4m\u00e4tt\u00e4 sit\u00e4 liian pitk\u00e4ksi aikaa vaikuttamaan ja huuhdella pinta huolellisesti<\/b>.<\/p>\n<p style=\"text-align: right;\">L\u00e4hde: \u201d<a href=\"https:\/\/link.amazon\/B0dAg7xFE\">Pesun ja pesuaineiden perusteet ja toimintaperiaatteet<\/a>\u201d (Shuwa System)<\/p>\n<p><strong>Etikkahappokin on turvallinen orgaaninen happo.<\/strong> Se tehoaa hyvin kalsiumkalkkiin mutta huonosti rautatahroihin, eli se muistuttaa sitruunahappoa. Etikkaa k\u00e4ytet\u00e4\u00e4nkin usein luonnonmukaisessa siivouksessa.<\/p>\n<p>Kun rikkihappo ja kalsium yhdistyv\u00e4t, syntyy kalsiumsulfaattia, joka <strong>liukenee huonosti veteen<\/strong>. Siksi <strong>rikkihappo ei sovi kalsium- ja magnesiumtahrojen poistoon<\/strong>. Se ei vain liuota likaa, vaan voi pahimmillaan synnytt\u00e4\u00e4 uutta, entist\u00e4kin huonommin liukenevaa ainetta.<\/p>\n<h3>Miten kalsiumkarbonaatti irtoaa? Katsotaan reaktioyht\u00e4l\u00f6\u00e4!<\/h3>\n<p>Kalkin p\u00e4\u00e4ainesosa kalsiumkarbonaatti on luonteeltaan l\u00e4hell\u00e4 em\u00e4st\u00e4. Kun sen p\u00e4\u00e4lle levitet\u00e4\u00e4n hapanta puhdistusainetta (sitruunahappoa), tapahtuu seuraavanlainen neutraloitumisreaktio:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-60001 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-04-6.36.05.jpeg\" alt=\"\" width=\"328\" height=\"41\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-04-6.36.05.jpeg 704w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-04-6.36.05-300x38.jpeg 300w\" sizes=\"auto, (max-width: 328px) 100vw, 328px\" \/><\/p>\n<p data-path-to-node=\"10\">Kiinnit\u00e4 huomiota oikeaan puoleen eli siihen, mit\u00e4 reaktiosta j\u00e4\u00e4 j\u00e4ljelle.<\/p>\n<ul data-path-to-node=\"11\">\n<li>\n<p data-path-to-node=\"11,0,0\"><b data-path-to-node=\"11,0,0\" data-index-in-node=\"0\">Kalsiumioni:<\/b> T\u00e4m\u00e4 liukenee veteen.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,1,0\"><b data-path-to-node=\"11,1,0\" data-index-in-node=\"0\">Vesi:<\/b> T\u00e4m\u00e4 on tietysti nestett\u00e4.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"11,2,0\"><b data-path-to-node=\"11,2,0\" data-index-in-node=\"0\">Hiilidioksidi:<\/b> T\u00e4m\u00e4 karkaa poreilevina kuplina (kaasuna).<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"12\">Toisin sanoen <b data-path-to-node=\"12\" data-index-in-node=\"14\">veteen liukenematon kiinte\u00e4 aine muuttuu reaktion hetkell\u00e4 veteen liukenevaksi aineeksi ja kaasuksi<\/b>. Reaktioyht\u00e4l\u00f6 n\u00e4ytt\u00e4\u00e4 t\u00e4lt\u00e4 (esimerkkin\u00e4 <strong>etikkahapon k\u00e4ytt\u00f6<\/strong>):<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-60000 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-04-6.27.52.jpeg\" alt=\"\" width=\"488\" height=\"33\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-04-6.27.52.jpeg 998w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-04-6.27.52-300x20.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-04-6.27.52-768x52.jpeg 768w\" sizes=\"auto, (max-width: 488px) 100vw, 488px\" \/><\/p>\n<p>Reaktion tuloksena kivikova kalsiumkarbonaatti muuttuu <strong>kalsiumasetaatiksi, joka on veteen hyvin liukeneva suola<\/strong>. Koska <strong>sitke\u00e4sti kiinni pinnassa ollut aine hajoaa veteen liukeneviksi ioneiksi<\/strong>, sen saa pois pelk\u00e4ll\u00e4 suihkuttamisella.<\/p>\n<p data-path-to-node=\"15\">Kalsiumkarbonaatti irtoaa hapon avulla, koska happo katkaisee kemiallisesti kiven sidokset ja muuttaa sen toiseksi aineeksi, jonka voi huuhdella pois veden mukana. Vaikka aine liukenee huonosti veteen, hapon avulla sit\u00e4 voi siis hiljalleen sy\u00f6d\u00e4 pois pinnasta.<\/p>\n<p data-path-to-node=\"15\">T\u00e4ss\u00e4 on kotini vessan k\u00e4sienpesupaikkaan kertynytt\u00e4 kalsiumkarbonaattia kiven muodossa.<\/p>\n<p data-path-to-node=\"15\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-67054 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.40-1.jpeg\" alt=\"\" width=\"375\" height=\"271\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.40-1.jpeg 994w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.40-1-300x217.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.40-1-768x555.jpeg 768w\" sizes=\"auto, (max-width: 375px) 100vw, 375px\" \/><\/p>\n<p data-path-to-node=\"15\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-67057 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-01-4.12.56.jpeg\" alt=\"\" width=\"373\" height=\"283\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-01-4.12.56.jpeg 1066w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-01-4.12.56-300x227.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-01-4.12.56-1024x776.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-01-4.12.56-768x582.jpeg 768w\" sizes=\"auto, (max-width: 373px) 100vw, 373px\" \/><\/p>\n<p data-path-to-node=\"15\">Tee hyvin vahvaa sitruunahappoliuosta. Kastele siihen talouspaperia ja k\u00e4\u00e4ri se kalkin ymp\u00e4rille. Annoin sen vaikuttaa tunnin.<\/p>\n<p data-path-to-node=\"15\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-67059 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-01-4.13.24.jpeg\" alt=\"\" width=\"375\" height=\"358\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-01-4.13.24.jpeg 676w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-01-4.13.24-300x287.jpeg 300w\" sizes=\"auto, (max-width: 375px) 100vw, 375px\" \/><\/p>\n<p data-path-to-node=\"15\">T\u00e4lt\u00e4 n\u00e4ytti tunnin kuluttua.<\/p>\n<p data-path-to-node=\"15\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-67056 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.58.jpeg\" alt=\"\" width=\"405\" height=\"295\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.58.jpeg 1310w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.58-300x219.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.58-1024x747.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.58-768x560.jpeg 768w\" sizes=\"auto, (max-width: 405px) 100vw, 405px\" \/><\/p>\n<p data-path-to-node=\"15\">Suuri osa kalsiumkarbonaatista (kivest\u00e4) on irronnut. Hankaan loput pois kevyesti kalkkitahroihin tarkoitetulla sienell\u00e4.<\/p>\n<p data-path-to-node=\"15\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-67058 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-01-4.13.02.jpeg\" alt=\"\" width=\"413\" height=\"383\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-01-4.13.02.jpeg 1230w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-01-4.13.02-300x278.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-01-4.13.02-1024x949.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-09-01-4.13.02-768x712.jpeg 768w\" sizes=\"auto, (max-width: 413px) 100vw, 413px\" \/><\/p>\n<p data-path-to-node=\"15\">Puhdistui kauniisti!<\/p>\n<p style=\"text-align: center;\" data-path-to-node=\"15\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-67055\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.47.jpeg\" alt=\"\" width=\"421\" height=\"295\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.47.jpeg 978w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.47-300x210.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-08-31-19.59.47-768x539.jpeg 768w\" sizes=\"auto, (max-width: 421px) 100vw, 421px\" \/><\/p>\n<p data-path-to-node=\"15\">Kylpyhuoneen peilin kalkkisuomuihin suosittelen japanilaisten eurokaupan vastineiden eli 100 jenin kauppojen timanttihiomatyynyj\u00e4. Poista ensin suurimmat suomut mekaanisesti hankaamalla,<\/p>\n<p style=\"text-align: center;\" data-path-to-node=\"15\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-68627\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-5.00.54.jpeg\" alt=\"\" width=\"317\" height=\"294\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-5.00.54.jpeg 1050w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-5.00.54-300x278.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-5.00.54-1024x950.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-5.00.54-768x712.jpeg 768w\" sizes=\"auto, (max-width: 317px) 100vw, 317px\" \/><\/p>\n<p data-path-to-node=\"15\">ja kostuta sen j\u00e4lkeen talouspaperi vahvahkolla sitruunahappoliuoksella, aseta se peilin pinnalle ja huuhtele lopuksi vedell\u00e4. Tulos on kirkas ja puhdas peili.<\/p>\n<p data-path-to-node=\"15\">Ennen<\/p>\n<p data-path-to-node=\"15\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-60536 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-15-5.08.31.jpeg\" alt=\"\" width=\"355\" height=\"454\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-15-5.08.31.jpeg 1064w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-15-5.08.31-235x300.jpeg 235w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-15-5.08.31-801x1024.jpeg 801w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/02\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-02-15-5.08.31-768x982.jpeg 768w\" sizes=\"auto, (max-width: 355px) 100vw, 355px\" \/><\/p>\n<p data-path-to-node=\"15\">J\u00e4lkeen<\/p>\n<p data-path-to-node=\"15\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-68628 aligncenter\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-5.00.49.jpeg\" alt=\"\" width=\"351\" height=\"465\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-5.00.49.jpeg 958w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-5.00.49-227x300.jpeg 227w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-5.00.49-774x1024.jpeg 774w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/08\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-19-5.00.49-768x1017.jpeg 768w\" sizes=\"auto, (max-width: 351px) 100vw, 351px\" \/><\/p>\n<h3 dir=\"ltr\">Vahvojen happojen vaarallisuus: proteiinien \u201ddenaturoituminen\u201d<\/h3>\n<p dir=\"ltr\">Vahvat em\u00e4kset, kuten natriumhydroksidi, ovat pelottavia, koska ne saippuoivat rasvoja sek\u00e4 hydrolysoivat eli pilkkovat ja liuottavat proteiineja. Mutta mik\u00e4 on vahvojen happojen, kuten suolahapon, vaarallisuus?<\/p>\n<p dir=\"ltr\">Vahva happo vapauttaa suuria m\u00e4\u00e4ri\u00e4 vetyioneja (H\u207a), jotka rikkovat proteiinimolekyylien kolmiulotteista rakennetta yll\u00e4pit\u00e4v\u00e4t vetysidokset ja j\u00e4rkytt\u00e4v\u00e4t varaustasapainon. Seurauksena proteiinit menett\u00e4v\u00e4t alkuper\u00e4isen rakenteensa eli denaturoituvat.<\/p>\n<p dir=\"ltr\">Ilmi\u00f6 on samanlainen kuin <strong>uppomunasta tuttu ilmi\u00f6<\/strong>: <strong>kun muna upotetaan etikkaan, valkuainen alkaa hyyty\u00e4<\/strong>. Sama tapahtuu ihon proteiineille. Denaturoitunut proteiini menett\u00e4\u00e4 toimintakykyns\u00e4 ja kovettuu. Juuri t\u00e4m\u00e4 on suolahapon aiheuttaman kemiallisen palovamman todellinen luonne.<\/p>\n<p dir=\"ltr\" style=\"padding-left: 40px;\"><span style=\"font-size: 14px;\">Lis\u00e4tieto: Happojen aiheuttama palovamma on ns. \u201dkoagulaationekroosi\u201d. Denaturoituneet proteiinit kovettuvat ja muodostavat kalvon, joka jossain m\u00e4\u00e4rin hidastaa hapon tunkeutumista syvemm\u00e4lle. Siksi vaikka kemikaali olisi yht\u00e4 vahva, happopalovamma pysyy yleens\u00e4 suhteellisen pinnallisena verrattuna em\u00e4ksisten aineiden (kuten natriumhydroksidin) aiheuttamiin palovammoihin. (Em\u00e4kset liuottavat rasvaa ja proteiineja tunkeutuessaan yh\u00e4 syvemm\u00e4lle, jolloin syntyy \u201dlikvefaktionekroosi\u201d, joka etenee helpommin syv\u00e4lle.)<\/span><\/p>\n<p dir=\"ltr\">Jos ainetta joutuu iholle, <strong>t\u00e4rkeint\u00e4 on huuhdella runsaalla juoksevalla vedell\u00e4<\/strong>. \u00c4l\u00e4 yrit\u00e4 neutraloida ainetta muilla kemikaaleilla (esimerkiksi ruokasoodaliuoksella), sill\u00e4 neutraloitumisreaktio itsess\u00e4\u00e4n tuottaa l\u00e4mp\u00f6\u00e4 ja voi pahentaa palovammaa. Siksi sit\u00e4 ei suositella. Laimenna kemikaali ja huuhtele se pois juoksevalla vedell\u00e4 ja hakeudu mahdollisimman pian l\u00e4\u00e4k\u00e4riin.<\/p>\n<h3>Yhteydenotot ja toimeksiannot<\/h3>\n<p>Tuomme tieteen ihmeet ja ilon l\u00e4hemm\u00e4s arkea! Kokoamme t\u00e4nne hauskoja kotona teht\u00e4vi\u00e4 tiedekokeita ja niiden onnistumisvinkkej\u00e4 helposti ymm\u00e4rrett\u00e4v\u00e4ss\u00e4 muodossa. Selaile ja etsi vapaasti!<br \/>\n\u30fbTiedeaiheiden ideapankin sis\u00e4ll\u00f6st\u00e4 on tehty kirja. Lis\u00e4tietoja <a href=\"https:\/\/amzn.to\/42PMCEL\">t\u00e4\u00e4lt\u00e4<\/a><br \/>\n\u30fbLis\u00e4\u00e4 yll\u00e4pit\u00e4j\u00e4st\u00e4 Ken Kuwakosta <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">t\u00e4\u00e4ll\u00e4<\/a><br \/>\n\u30fbToimeksiannot (kirjoittaminen, luennot, kokeilupajat, TV-ohjelmien asiantuntijaty\u00f6 ja esiintymiset ym.) <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">t\u00e4\u00e4ll\u00e4<\/a><br \/>\n<span class=\"s2\">\u30fbArtikkelien p\u00e4ivitykset tulevat <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 ideakanavalla<\/a> julkaistaan koevideoita!<\/p>\n<h3>\uff11\uff10\u6708\u306e\u30a4\u30c1\u30aa\u30b7\u5b9f\u9a13\uff01<\/h3>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=67937\">\u7d19\u30b3\u30c3\u30d7\u30b8\u30e3\u30a4\u30ed\u98db\u884c\u6a5f\u3092\u4f5c\u308d\u3046\uff01<\/a><\/p>\r\n<p style=\"text-align: center;\"><a href=\"https:\/\/phys-edu.net\/wp\/?p=67937\"><img class=\"alignnone  wp-image-68171\" src=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/%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%88-2026-10-06-8.34.43.jpeg\" sizes=\"auto, (max-width: 1188px) 100vw, 1188px\" srcset=\"https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-06-8.34.43.jpeg 1188w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-06-8.34.43-300x171.jpeg 300w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-06-8.34.43-1024x584.jpeg 1024w, https:\/\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/10\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2026-10-06-8.34.43-768x438.jpeg 768w\" alt=\"\" width=\"397\" height=\"226\" \/><\/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>10\u670827\u65e5\uff08\u706b\uff09 \u30c6\u30ec\u30d3\u76e3\u4fee\u756a\u7d44\u653e\u9001\u4e88\u5b9a<\/li>\r\n<li>11\u670827\u65e5\uff08\u91d1\uff09\u3000\u30c6\u30ec\u30d3\u76e3\u4fee\u756a\u7d44\u653e\u9001\u4e88\u5b9a<\/li>\r\n<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<li>\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<br \/><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>\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\" \/><\/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;\">\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<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 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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>Moi, olen tiedevalmentaja Ken Kuwako. Meill\u00e4 jokainen p\u00e4iv\u00e4 on koe. Siivouksen tiedett\u00e4 k\u00e4sittelev\u00e4n yhteenvet [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":60215,"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-68648","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category--fi"],"jetpack-related-posts":[{"id":66681,"url":"https:\/\/phys-edu.net\/wp\/?p=66681&lang=fi","url_meta":{"origin":68648,"position":0},"title":"Tehty \u00f6ljyst\u00e4!? Kokeilimme tehd\u00e4 saippuaa ruoka\u00f6ljyst\u00e4 (siivouksen kemiaa)","author":"\u6851\u5b50 \u7814","date":"2026\u5e748\u670820\u65e5","format":false,"excerpt":"Olen tiedekouluttaja Ken Kuwako. 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