{"id":65837,"date":"2026-07-27T16:32:44","date_gmt":"2026-07-27T07:32:44","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=65837"},"modified":"2026-07-27T16:32:44","modified_gmt":"2026-07-27T07:32:44","slug":"el-agua-del-grifo-no-es-neutra-lo-que-un-simple-test-con-btb-revelo-sobre-el-agua-que-bebemos","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=65837&lang=es","title":{"rendered":"\u00bfEl agua del grifo no es neutra? Lo que un simple test con BTB revel\u00f3 sobre el agua que bebemos"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"color: #339966;\"><strong>Soy Kuwako Ken, entrenador de ciencia. Cada d\u00eda es un nuevo experimento.<\/strong><\/span><\/p>\n<p>\u00bfDe qu\u00e9 color crees que se vuelve el agua del grifo al a\u00f1adir unas gotas de indicador BTB? Mucha gente responde: &#8220;Como es agua potable, debe de ser neutra, as\u00ed que se pondr\u00e1 verde&#8221;. Yo tambi\u00e9n pensaba que el agua que bebemos era completamente neutra, pero cuando hice este experimento con mis alumnos de secundaria descubr\u00ed que no era as\u00ed. El resultado es bastante sorprendente. Primero, echa un vistazo.<\/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>\u00bfEl agua del grifo no es realmente neutra?<\/h3>\n<p>\u00a1As\u00ed es! \u00a1Se vuelve azul!<\/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>El color es azul.<\/b> Este resultado corresponde al agua del grifo de la prefectura de Chiba.<\/p>\n<p>Si pensabas: &#8220;\u00bfNo se supone que el agua del grifo es neutra?&#8221;, aqu\u00ed se esconde un dato muy interesante. Aunque el agua potable est\u00e1 muy cerca de la neutralidad, <b>en muchos lugares es ligeramente alcalina<\/b>.<\/p>\n<p>Investigando un poco encontr\u00e9 dos razones principales.<\/p>\n<p>La primera es que al agua potable se le a\u00f1ade <b>cloro (en forma de \u00e1cido hipocloroso o sus compuestos)<\/b> para desinfectarla, lo que hace que el agua tienda ligeramente hacia la alcalinidad.<\/p>\n<p>La segunda es que la legislaci\u00f3n permite que el pH del agua potable se mantenga <b>entre 5,8 y 8,6<\/b>, por lo que no tiene por qu\u00e9 ser exactamente 7 (neutro).<\/p>\n<p>Como el indicador BTB muestra un color <b>verde entre aproximadamente pH 6 y 7,6<\/b>, basta con que el agua est\u00e9 un poco por encima de pH 7 para que se vea azulada.<\/p>\n<p>Informaci\u00f3n de la Oficina de Agua de Tokio<\/p>\n<blockquote><p>Pregunta: \u00bfQu\u00e9 significa el pH del agua del grifo?<\/p>\n<p>Respuesta: El pH es un valor que indica el grado de acidez o alcalinidad de una sustancia. No tiene unidades y se expresa mediante una escala de 0 a 14. Un pH de 7 es neutro; cuanto menor sea el valor, m\u00e1s \u00e1cida es la soluci\u00f3n, y cuanto mayor sea, m\u00e1s alcalina. El est\u00e1ndar de calidad del agua potable establece un rango de pH de 5,8 a 8,6, ya que conviene mantener el agua cerca de la neutralidad para evitar la corrosi\u00f3n de las instalaciones. El agua del grifo de Tokio suele tener un pH aproximado de 7,5 y puede considerarse pr\u00e1cticamente neutra.<\/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>Informaci\u00f3n de la prefectura de Chiba<\/p>\n<blockquote><p>Como el plomo se disuelve con mayor dificultad en agua alcalina, desde abril de 2002 se ajusta el agua potable para que sea ligeramente alcalina en toda el \u00e1rea de suministro.<\/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>Tambi\u00e9n prob\u00e9 el agua del laboratorio y el resultado fue igualmente azul.<\/p>\n<p>Eso s\u00ed, <b>esto no significa que el agua del grifo sea siempre alcalina en cualquier lugar de Jap\u00f3n.<\/b><\/p>\n<p>El hipoclorito de sodio utilizado para la desinfecci\u00f3n tiende a elevar el pH, pero el valor final depende tambi\u00e9n del agua de origen, ya sea de r\u00edos, embalses o acu\u00edferos, adem\u00e1s de los minerales presentes y de las caracter\u00edsticas geol\u00f3gicas de cada regi\u00f3n.<\/p>\n<p>Por eso, en algunas zonas el agua est\u00e1 muy cerca de la neutralidad e incluso puede ser ligeramente \u00e1cida. La forma m\u00e1s precisa de decirlo es que la desinfecci\u00f3n hace que el agua tienda hacia la alcalinidad.<\/p>\n<h3>\u00a1Sopla dentro del agua y el color cambia!<\/h3>\n<p>Ahora llega la parte m\u00e1s divertida del experimento.<\/p>\n<p>Si introduces una pajita y soplas lentamente dentro del agua azul, el color ir\u00e1 cambiando poco a poco de <b>azul \u2192 verde \u2192 amarillo<\/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>Mira este v\u00eddeo.<\/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>Al comparar el antes y el despu\u00e9s, el cambio de color resulta evidente.<\/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>Esto ocurre porque el <b>di\u00f3xido de carbono presente en el aire que exhalamos se disuelve en el agua y forma \u00e1cido carb\u00f3nico<\/b>, haciendo que el l\u00edquido se vuelva gradualmente m\u00e1s \u00e1cido.<\/p>\n<p>Curiosamente, la llamada &#8220;acidificaci\u00f3n de los oc\u00e9anos&#8221;, relacionada con el cambio clim\u00e1tico, ocurre exactamente por el mismo mecanismo. El di\u00f3xido de carbono de la atm\u00f3sfera se disuelve en el agua del mar y va reduciendo lentamente su pH.<\/p>\n<p>Pensar que un peque\u00f1o cambio de color dentro de un vaso reproduce un fen\u00f3meno que afecta a todo el planeta hace que este experimento resulte a\u00fan m\u00e1s fascinante.<\/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>\u00bfA\u00f1adir cloro vuelve el agua \u00e1cida? Aclarando un malentendido muy com\u00fan<\/h3>\n<p>Algunos lectores preguntaron: &#8220;\u00bfNo deber\u00eda el cloro hacer que el agua se vuelva \u00e1cida?&#8221;. Es una duda excelente, as\u00ed que vamos a verla con detalle.<\/p>\n<p>La respuesta es la siguiente: <b>si se disuelve gas cloro (Cl<sub>2<\/sub>) en agua, esta se vuelve \u00e1cida. Sin embargo, el compuesto utilizado actualmente en la mayor\u00eda de las plantas potabilizadoras es el hipoclorito de sodio, una sal derivada de una base fuerte, por lo que su disoluci\u00f3n tiene car\u00e1cter alcalino.<\/b><\/p>\n<p>Aunque ambos contienen &#8220;cloro&#8221;, sus propiedades son completamente diferentes seg\u00fan la forma qu\u00edmica en la que se encuentren.<\/p>\n<p>En los libros de qu\u00edmica suele aparecer la reacci\u00f3n del gas cloro con el agua:<\/p>\n<p style=\"text-align: center;\">Cl<sub>2<\/sub> + H<sub>2<\/sub>O \u21cc HClO + HCl<\/p>\n<p>(Como se forman dos \u00e1cidos, el \u00e1cido hipocloroso HClO y el \u00e1cido clorh\u00eddrico HCl, al a\u00f1adir <b>gas cloro<\/b> el agua efectivamente se vuelve m\u00e1s \u00e1cida.)<\/p>\n<p>En el pasado, algunas plantas potabilizadoras y grandes instalaciones utilizaban directamente cloro licuado (Cl<sub>2<\/sub>), por lo que muchas personas conservan esa imagen de los antiguos sistemas o de los libros de texto.<\/p>\n<p>Sin embargo, hoy en d\u00eda, en Chiba y en muchas otras regiones, se utiliza un producto l\u00edquido llamado hipoclorito de sodio (NaClO), no gas cloro.<\/p>\n<p>Este compuesto es una sal formada a partir de un \u00e1cido d\u00e9bil (HClO) y una base fuerte (NaOH). Al disolverse en agua, experimenta hidr\u00f3lisis y produce iones hidr\u00f3xido (OH\u207b), por lo que <b>la disoluci\u00f3n presenta car\u00e1cter alcalino<\/b>.<\/p>\n<p style=\"text-align: center;\">ClO\u207b + H<sub>2<\/sub>O \u21cc HClO + OH\u207b<\/p>\n<p>Por ello, al a\u00f1adir hipoclorito de sodio, el agua no se vuelve \u00e1cida, sino que se desplaza hacia el lado alcalino (es decir, aumenta su pH).<\/p>\n<p>Es un magn\u00edfico ejemplo de c\u00f3mo dos sustancias formadas por el mismo elemento pueden comportarse de manera completamente opuesta dependiendo de su estructura qu\u00edmica. Ah\u00ed reside buena parte de la magia de la qu\u00edmica.<\/p>\n<h3>Consultas y colaboraciones<\/h3>\n<p>\u00a1Acercamos la ciencia a la vida cotidiana de una forma sencilla y divertida! Compartimos experimentos que puedes hacer en casa y explicaciones f\u00e1ciles de entender. \u00a1No dudes en explorar m\u00e1s art\u00edculos!<\/p>\n<p>\u30fbEl contenido de Ciencia en la Libreta ya est\u00e1 disponible en formato de libro. M\u00e1s informaci\u00f3n <a href=\"https:\/\/amzn.to\/42PMCEL\">aqu\u00ed<\/a>.<\/p>\n<p>\u30fbSi quieres saber m\u00e1s sobre Kuwako Ken, visita <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=37\">esta p\u00e1gina<\/a>.<\/p>\n<p>\u30fbPara solicitudes de colaboraci\u00f3n (art\u00edculos, conferencias, talleres cient\u00edficos, asesor\u00eda para televisi\u00f3n, apariciones en medios, etc.), consulta <a href=\"https:\/\/phys-edu.net\/wp\/?page_id=188\">este enlace<\/a>.<\/p>\n<p><span class=\"s2\">\u30fb\u00a1Las novedades del blog se publican en <a href=\"https:\/\/x.com\/kuwako\">X<\/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\">\u00a1En el Canal Ciencia al Descubierto encontrar\u00e1s v\u00eddeos de experimentos!<\/a><\/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>Soy Kuwako Ken, entrenador de ciencia. Cada d\u00eda es un nuevo experimento. \u00bfDe qu\u00e9 color crees que se vuelve el  [&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":[1492],"tags":[],"class_list":["post-65837","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science-es"],"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":63947,"url":"https:\/\/phys-edu.net\/wp\/?p=63947&lang=es","url_meta":{"origin":65837,"position":0},"title":"\u00a1Funciona hasta en d\u00edas nublados\uff01 Gu\u00eda completa para experimentos de fotos\u00edntesis con Elodea y bromo","author":"\u6851\u5b50 \u7814","date":"2026\u5e745\u670829\u65e5","format":false,"excerpt":"Soy Kuwako Ken, de Science Trainer. Aqu\u00ed, cada d\u00eda\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1492&lang=es"},"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":54568,"url":"https:\/\/phys-edu.net\/wp\/?p=54568&lang=es","url_meta":{"origin":65837,"position":1},"title":"\u00a1No es magia! La ciencia revela c\u00f3mo un globo puede doblar el agua (Experimento de electricidad est\u00e1tica)","author":"\u6851\u5b50 \u7814","date":"2025\u5e7410\u670818\u65e5","format":false,"excerpt":"Soy Ken Kuwako, tu entrenador de ciencia. \u00a1Cada d\u00ed\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1492&lang=es"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/37368528cb7a1c21ee65dac98d309c4d.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/37368528cb7a1c21ee65dac98d309c4d.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/02\/37368528cb7a1c21ee65dac98d309c4d.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":59180,"url":"https:\/\/phys-edu.net\/wp\/?p=59180&lang=es","url_meta":{"origin":65837,"position":2},"title":"\u00bfLa pasta se convierte en ramen!? El secreto de la \u201cdeliciosa reacci\u00f3n qu\u00edmica\u201d del bicarbonato","author":"\u6851\u5b50 \u7814","date":"2026\u5e741\u670822\u65e5","format":false,"excerpt":"Soy Ken Kuwako, entrenador cient\u00edfico. Mi vida es \u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1492&lang=es"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/71f1938282a68d426392d7a68168c4bd.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/71f1938282a68d426392d7a68168c4bd.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/71f1938282a68d426392d7a68168c4bd.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/02\/71f1938282a68d426392d7a68168c4bd.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":65857,"url":"https:\/\/phys-edu.net\/wp\/?p=65857&lang=es","url_meta":{"origin":65837,"position":3},"title":"\u00a1L\u00edquido un momento, s\u00f3lido al siguiente! El experimento del &#8220;slime misterioso&#8221; que tambi\u00e9n cambia de color","author":"\u6851\u5b50 \u7814","date":"2026\u5e747\u670828\u65e5","format":false,"excerpt":"Soy Ken Kuwako, entrenador de ciencia. Cada d\u00eda es\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1492&lang=es"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/07\/%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%88-2026-07-26-5.24.37.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/07\/%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%88-2026-07-26-5.24.37.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/07\/%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%88-2026-07-26-5.24.37.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2026\/07\/%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%88-2026-07-26-5.24.37.jpeg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":60946,"url":"https:\/\/phys-edu.net\/wp\/?p=60946&lang=es","url_meta":{"origin":65837,"position":4},"title":"\u00bfPor qu\u00e9 las burbujas de jab\u00f3n se acercan a la electricidad est\u00e1tica, mientras que las mariposas de papel huyen? \u00a1El sorprendente secreto de la f\u00edsica!","author":"\u6851\u5b50 \u7814","date":"2026\u5e742\u670828\u65e5","format":false,"excerpt":"Soy Ken Kuwako, entrenador cient\u00edfico. Mi vida es \u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1492&lang=es"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/9774f80e903cdcb877be8351219f2fee.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/9774f80e903cdcb877be8351219f2fee.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/9774f80e903cdcb877be8351219f2fee.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2020\/03\/9774f80e903cdcb877be8351219f2fee.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":51348,"url":"https:\/\/phys-edu.net\/wp\/?p=51348&lang=es","url_meta":{"origin":65837,"position":5},"title":"Elaboraci\u00f3n y eliminaci\u00f3n de agua de cal (\u00bfEs el agua de cal algo que se compra? En realidad, es f\u00e1cil de hacer en el laboratorio.)","author":"\u6851\u5b50 \u7814","date":"2025\u5e749\u67081\u65e5","format":false,"excerpt":"Soy Ken Kuwako, entrenador de ciencias. Cada d\u00eda e\u2026","rel":"","context":"Science","block_context":{"text":"Science","link":"https:\/\/phys-edu.net\/wp\/?cat=1492&lang=es"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/05\/664a7532c8b8ecc6ea069625ebef41ee.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/05\/664a7532c8b8ecc6ea069625ebef41ee.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/05\/664a7532c8b8ecc6ea069625ebef41ee.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/05\/664a7532c8b8ecc6ea069625ebef41ee.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/phys-edu.net\/wp\/wp-content\/uploads\/2025\/05\/664a7532c8b8ecc6ea069625ebef41ee.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/65837","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=65837"}],"version-history":[{"count":0,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/65837\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=\/wp\/v2\/media\/63977"}],"wp:attachment":[{"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=65837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=65837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phys-edu.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=65837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}