{"id":1919,"date":"2018-03-30T21:09:23","date_gmt":"2018-03-30T19:09:23","guid":{"rendered":"http:\/\/agora.xtec.cat\/zer-riuiserra\/?p=1919"},"modified":"2018-04-02T21:10:17","modified_gmt":"2018-04-02T19:10:17","slug":"fem-de-cientifics-el-ph-de-la-nostra-aigua","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/zer-riuiserra\/general\/fem-de-cientifics-el-ph-de-la-nostra-aigua\/","title":{"rendered":"FEM DE CIENT\u00cdFICS: El PH de la nostra aigua"},"content":{"rendered":"<p><a href=\"http:\/\/agora.xtec.cat\/zer-riuiserra\/wp-content\/uploads\/usu446\/2018\/04\/images.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-2004\" src=\"http:\/\/agora.xtec.cat\/zer-riuiserra\/wp-content\/uploads\/usu446\/2018\/04\/images.jpg\" alt=\"\" width=\"298\" height=\"169\" \/><\/a>EL PH DE LA NOSTRA AIGUA<\/p>\n<p>L\u2019ICE (Institut de Ci\u00e8ncies de l\u2019Educaci\u00f3) de la URV de les Terres de l\u2019Ebre\u00a0 ens va sol\u00b7licitar la col\u00b7laboraci\u00f3 en un projecte per con\u00e8ixer el pH de les aig\u00fces de Catalunya. Amb les dades recollides per les escoles dels diferents municipis col\u00b7laboradors volien fer un mapa de la potabilitat de l\u2019aigua. Aix\u00ed que els alumnes de 4t i CS ens vam sumar a la iniciativa i vam analitzar el pH de l\u2019aigua d&#8217;Aldover.<\/p>\n<p>Els passos que hem seguit en aquest experiment s\u00f3n els seg\u00fcents:<\/p>\n<ul>\n<li>Hem trossejat unes fulles de col llombarda amb la batedora i hem afegit 100 ml d\u2019alcohol.<\/li>\n<li>Hem posat la pasta en un colador i l\u2019hem escorregut amb l\u2019ajut d\u2019una cullera.<\/li>\n<li>Amb una pipeta hem agafat la subst\u00e0ncia resultant, i l\u2019hem introdu\u00eft en un tub d\u2019assaig, on pr\u00e8viament hi hav\u00edem posat aigua.<\/li>\n<li>Hem anat remenat el tub d\u2019assaig fins que el l\u00edquid qued\u00e9s homogeni. Hem observat que es tornava de color blau i hem comparat la nostra mostra amb l\u2019escala del PH( els valors de l\u2019escala van de 1 al 14).<\/li>\n<li>Finalment, hem vist que al color blau li correspon un PH de 7,5, un valor que es considera neutre.<\/li>\n<\/ul>\n<p>Tan bon punt vam obtenir el resultat els ho vam comunicar. La qual cosa ens van agrair i confirmar que ben segur els serviria per aconseguir el seu objectiu.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/photos.app.goo.gl\/rPjs54MoVasHtVXx1\">\u00c0LBUM<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Experimentem amb el PH.<br \/>\nCol\u00b7laboraci\u00f3 amb l&#8217;ICE.<br \/>\nAlumnat (4t, 5\u00e8, 6\u00e8).<\/p>\n","protected":false},"author":1,"featured_media":2004,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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