{"id":21630,"date":"2024-12-06T16:48:04","date_gmt":"2024-12-06T15:48:04","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=21630"},"modified":"2024-12-09T10:41:25","modified_gmt":"2024-12-09T09:41:25","slug":"el-25-explora-les-escletxes","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/el-25-explora-les-escletxes\/","title":{"rendered":"El 25 explora les Escletxes"},"content":{"rendered":"<p style=\"font-weight: 400; text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-21633 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/12\/3-2-225x300.jpg\" alt=\"\" width=\"244\" height=\"326\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/12\/3-2-225x300.jpg 225w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/12\/3-2.jpg 450w\" sizes=\"auto, (max-width: 244px) 100vw, 244px\" \/>Els dies 3 i 4 de desembre de 2024 els alumnes de 6\u00e8 de prim\u00e0ria de l&#8217;<a href=\"https:\/\/agora.xtec.cat\/ceip-25desetembre-rubi\/\">Escola 25 de Setembre<\/a> de Rub\u00ed han fet de ge\u00f2legs i ge\u00f2logues per investigar la formaci\u00f3 d<span style=\"font-family: inherit; font-size: 1em; text-align: justify;\">e Les Escletxes del\u00a0Papiol i resoldre el seg\u00fcent repte: \u201c<\/span><a style=\"font-family: inherit; font-size: 1em; text-align: justify;\" href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/geologia\/les-escletxes-primaria\/\">Qualsevol terreny \u00e9s bo per construir una casa?<\/a><span style=\"font-family: inherit; font-size: 1em; text-align: justify;\">\u201d<\/span><\/p>\n<p style=\"font-weight: 400; text-align: justify;\">En primer lloc han observat que les escletxes es troben en un vessant on es diferencien dos tipus de materials: un de superior de tonalitat clara i un d\u2019inferior vermell\u00f3s. Seguidament s\u2019han dividit en 6 grups de treball, s\u2019han posat el casc i han agafat tot el material necessari per a la seva investigaci\u00f3: martell de ge\u00f2leg, cinta m\u00e8trica, br\u00faixola i \u00e0cid clorh\u00eddric dilu\u00eft. Amb tot preparat, han fet tot un seguit de proves en ambdues roques, com comprovar la seva consist\u00e8ncia, la resist\u00e8ncia, la permeabilitat o veure si reaccionaven amb \u00e0cid clorh\u00eddric. Han confirmat que el material superior eren roques calc\u00e0ries i l\u2019inferior argiles. A m\u00e9s, gr\u00e0cies a l&#8217;observaci\u00f3 d&#8217;alguns f\u00f2ssils marins (ostres i altres bivalves, coralls, etc.), han pogut deduir que les roques calc\u00e0ries tenen un origen mar\u00ed.<\/p>\n<p style=\"font-weight: 400; text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-21636\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/12\/2-2-300x225.jpg\" alt=\"\" width=\"321\" height=\"241\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/12\/2-2-300x225.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/12\/2-2-200x150.jpg 200w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/12\/2-2.jpg 600w\" sizes=\"auto, (max-width: 321px) 100vw, 321px\" \/><\/p>\n<p style=\"font-weight: 400; text-align: justify;\">A continuaci\u00f3 s\u2019han endinsat en 4 de les escletxes i han mesurat la direcci\u00f3, l\u2019amplada i la profunditat de\u00a0cadascuna. Han travessat algunes escletxes realment estretes com si fossin aut\u00e8ntics espele\u00f2legs. Ha sigut una experi\u00e8ncia emocionant!<\/p>\n<p style=\"text-align: justify;\">Amb totes les dades que han recollit, han fet una posada en com\u00fa i han dedu\u00eft com s\u2019havien format les escletxes. Com les roques calc\u00e0ries es van degradant a causa de la lleugera acidesa que cont\u00e9 la pluja, durant milions d\u2019anys les esquerdes de les roques s\u2019han anat fent m\u00e9s i m\u00e9s grans fins que l\u2019aigua ha pogut arribar a les argiles inferiors. Aquestes esquerdes cada vegada s\u00f3n m\u00e9s amples perqu\u00e8 les argiles pastoses fan que les roques calc\u00e0ries llisquin vessant avall.<\/p>\n<p style=\"font-weight: 400; text-align: justify;\">Finalment han jugat al joc de les sis difer\u00e8ncies per con\u00e8ixer la problem\u00e0tica de les cases del Papiol, que sovint tamb\u00e9 es troben afectades per esquerdes a les fa\u00e7anes, i han descobert diverses solucions per evitar l\u2019aparici\u00f3 d\u2019aquestes. Han arribat a la conclusi\u00f3 que no qualsevol terreny \u00e9s apte per construir-hi o, si m\u00e9s no, caldr\u00e0 adaptar el tipus de construcci\u00f3 segons la zona.<\/p>\n<p style=\"font-weight: 400; text-align: justify;\">Han estat uns investigadors molt intr\u00e8pids i han treballat de valent! Fins aviat!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Els dies 3 i 4 de desembre de 2024 els alumnes de 6\u00e8 de prim\u00e0ria de l&#8217;Escola 25 de Setembre de Rub\u00ed han fet de ge\u00f2legs i ge\u00f2logues per investigar la formaci\u00f3 de Les Escletxes del\u00a0Papiol i resoldre el seg\u00fcent repte: \u201cQualsevol terreny \u00e9s bo per construir una casa?\u201d En primer lloc han observat que [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":21632,"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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