{"id":17779,"date":"2023-06-08T09:54:47","date_gmt":"2023-06-08T07:54:47","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=17779"},"modified":"2023-06-08T09:58:50","modified_gmt":"2023-06-08T07:58:50","slug":"reptils-marins-de-la-prehistoria-descobreixen-el-poder-dels-raigs-del-sol","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/reptils-marins-de-la-prehistoria-descobreixen-el-poder-dels-raigs-del-sol\/","title":{"rendered":"R\u00e8ptils marins de la prehistoria descobreixen el poder dels raigs del Sol"},"content":{"rendered":"<p>Dimecres 7 de juny\u00a0 les classes de cinqu\u00e9 amb noms de r\u00e8ptils marins &#8220;Nothosures&#8221; i &#8220;Clidastes&#8221;\u00a0 de l&#8217;<a href=\"https:\/\/agora.xtec.cat\/escolasantamariacervello\/\" target=\"_blank\" rel=\"noopener\">Escola Santa Maria de Cervell\u00f3<\/a> han vingut a realitzar el projecte <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/recursos-del-medi-i-sostenibilitat\/\">El nostre amic el Sol<\/a> al <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/\">Camp d\u2019aprenentatge Can Santoi<\/a>. Han comen\u00e7at identificant els noms dels diferents tipus de radiaci\u00f3 que ens envia el Sol i qu\u00e8 ens aporten. Tamb\u00e9 han reflexionat sobre l&#8217;efecte del color negre i l&#8217;efecte hivernacle en relaci\u00f3 a l&#8217;absorci\u00f3 de la calor. Han demostrat ser uns grans experts!. A continuaci\u00f3 s&#8217;han dividit en 6 grups i han participat en dos dels seg\u00fcents tallers: la<strong> cuina solar<\/strong>, els\u00a0<strong>col\u00b7lectors solars<\/strong>\u00a0i la producci\u00f3 d&#8217;electricitat amb les <strong>plaques fotovoltaiques<\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-17786 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/06\/muntatge2.jpg\" alt=\"\" width=\"163\" height=\"300\" \/>Amb la <strong>cuina solar<\/strong> han comprovat que la forma parab\u00f2lica \u00e9s la que permet concentrar els raigs de sol en un punt central on col\u00b7loquem la olla de color negre. Tamb\u00e9 han apr\u00e9s a orientar correctament la cuina per aprofitar al m\u00e0xim la calor. Tot i que el sol no s&#8217;ha deixat veure gaire, amb el term\u00f2metre han anat veient que a l\u2019olla la temperatura augmentava fins a m\u00e9s de 50 \u00baC. Les pomes amb sucre que han cuinat no han quedat del tot cuites, per\u00f2 han pres consci\u00e8ncia de la utilitat d&#8217;aquestes cuines tant senzilles per cuinar en llocs amb pocs recursos energ\u00e8tics.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-17784\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/06\/muntatge-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/06\/muntatge.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2023\/06\/muntatge-150x150.jpg 150w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>L&#8217;altre taller ha consistit en muntar uns <strong>col\u00b7lectors solars<\/strong> a partir d&#8217;unes capses de fusta ja preparades, uns a\u00efllants a l\u2019interior i una m\u00e0nega negra amb aigua. Han muntat tres prototips similars, per\u00f2 amb diferent nombre de vidres de cobertora: un sense vidre, un altre amb un vidre i un tercer amb dos vidres. Aquest experiment els ha servit per comprendre que podem aprofitar la calor que ens proporciona el Sol per escalfar aigua i que els vidres s\u00f3n imprescindibles per recrear un efecte hivernacle al col\u00b7lector.<\/p>\n<p>Finalment tots han participat al taller de producci\u00f3 d&#8217;electricitat amb les<strong> plaques fotovoltaiques. <\/strong>Han apr\u00e8s que representen una bona oportunitat per anar canviant els sistemes d&#8217;obtenci\u00f3 de l&#8217;energia, dels recursos f\u00f2ssils a les renovables. En el taller han constru\u00eft un petit circuit per veure com la llum del Sol es transforma en un corrent el\u00e8ctric capa\u00e7 de moure un petit molinet.<\/p>\n<p>Ha sigut unes classes molt treballadores. Felicitats!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dimecres 7 de juny\u00a0 les classes de cinqu\u00e9 amb noms de r\u00e8ptils marins &#8220;Nothosures&#8221; i &#8220;Clidastes&#8221;\u00a0 de l&#8217;Escola Santa Maria de Cervell\u00f3 han vingut a realitzar el projecte El nostre amic el Sol al Camp d\u2019aprenentatge Can Santoi. Han comen\u00e7at identificant els noms dels diferents tipus de radiaci\u00f3 que ens envia el Sol i qu\u00e8 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":17789,"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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