{"id":10682,"date":"2019-03-12T14:22:21","date_gmt":"2019-03-12T13:22:21","guid":{"rendered":"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=10682"},"modified":"2019-03-12T14:22:56","modified_gmt":"2019-03-12T13:22:56","slug":"quin-fenomen-les-escletxes","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/quin-fenomen-les-escletxes\/","title":{"rendered":"Quin fenomen les Escletxes!"},"content":{"rendered":"<p>Els dies 6 i 7 de mar\u00e7 els alumnes de 6\u00e8 de prim\u00e0ria de <strong>l\u2019Escola La S\u00ednia<\/strong> de Molins de Rei van investigar la <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/geologia\/les-escletxes-primaria\/\" target=\"_blank\" rel=\"noopener\">formaci\u00f3 de les Escletxes<\/a> del Papiol.<\/p>\n<p>Despr\u00e9s d\u2019una breu introducci\u00f3 i de plantejar hip\u00f2tesis sobre la formaci\u00f3 de les escletxes, es van dividir en grups de treball per poder fer les activitats proposades en el quadern de treball.<\/p>\n<p><a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/03\/IMG_3880bis.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10687 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/03\/IMG_3880bis.jpg\" alt=\"\" width=\"194\" height=\"300\" \/><\/a>Primerament van observar que hi havia dos materials diferents, material inferior (argiles) i material superior (calc\u00e0ries). Per esbrinar de quin material es tractava, van haver de fer diverses proves (El material es pot arrancar o no es pot arrencar, es pot clavar un martell de ge\u00f2leg o l\u2019escup, reacciona amb el HCl o no, s\u2019infiltra aigua o forma bassals i si el material amb aigua es torna fang o mant\u00e9 la seva forma inicial).<\/p>\n<p>Posteriorment \u00a0els alumnes van entrar en quatre de les escletxes per estudiar-les amb detall, fent mesures d\u2019amplada, profunditat i direcci\u00f3.<\/p>\n<p><a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/03\/05d5d101-e050-4010-b5e9-6653a256f81eBis.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10688 alignright\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/03\/05d5d101-e050-4010-b5e9-6653a256f81eBis.jpg\" alt=\"\" width=\"212\" height=\"300\" \/><\/a>Un cop posades totes les dades en com\u00fa\u00a0 van deduir les causes i el proc\u00e9s de formaci\u00f3. Van arribar a la conclusi\u00f3 que degut a millions d\u2019anys de <strong>pluja \u00e0cida<\/strong>, la calc\u00e0ria s\u2019ha anat degradant formant esquerdes i afavorint \u00a0la infiltraci\u00f3 d\u2019aquesta aigua fins arribar a les argiles <strong>impermeables<\/strong>. \u00a0La inestabilitat de les argiles saturades d\u2019aigua i el fet de \u00a0trobar-se en una zona amb pendent afavoreix el lliscament de les calc\u00e0ries i el progressiu eixamplament de les esquerdes fins a formar les escletxes actuals.<\/p>\n<p>Tanmateix han fet d\u2019arquitectes, per tal d\u2019aprendre quines solucions poden portar a terme a les cases del Papiol per reduir aquest risc.<\/p>\n<p>Han apr\u00e8s molt i s\u2019ho han passat molt b\u00e9!!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Els dies 6 i 7 de mar\u00e7 els alumnes de 6\u00e8 de prim\u00e0ria de l\u2019Escola La S\u00ednia de Molins de Rei van investigar la formaci\u00f3 de les Escletxes del Papiol. Despr\u00e9s d\u2019una breu introducci\u00f3 i de plantejar hip\u00f2tesis sobre la formaci\u00f3 de les escletxes, es van dividir en grups de treball per poder fer les [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":10686,"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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1,295,29],"tags":[],"class_list":["post-10682","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","category-geologia","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/10682","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/comments?post=10682"}],"version-history":[{"count":4,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/10682\/revisions"}],"predecessor-version":[{"id":10693,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/10682\/revisions\/10693"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media\/10686"}],"wp:attachment":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media?parent=10682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/categories?post=10682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/tags?post=10682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}