{"id":2645,"date":"2023-09-25T12:54:47","date_gmt":"2023-09-25T10:54:47","guid":{"rendered":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/?p=2645"},"modified":"2026-02-27T00:26:41","modified_gmt":"2026-02-26T23:26:41","slug":"taller-experimentacio-2-la-tensio-superficial","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/portada\/taller-experimentacio-2-la-tensio-superficial\/","title":{"rendered":"Taller experimentaci\u00f3 2: La tensi\u00f3 superficial"},"content":{"rendered":"<p>La tensi\u00f3 superficial de l&#8217;aigua \u00e9s una for\u00e7a sorprenent que mant\u00e9 l&#8217;aigua unida i permet a alguns insectes flotar sense problemes a la seva superf\u00edcie. Vam decidir aprofundir en aquest fenomen intrigant.<\/p>\n<p>Van crear una superf\u00edcie amb aigua i sab\u00f3. A continuaci\u00f3, van prendre un tros de fil i van fer un nus als extrems. Amb gran expectaci\u00f3, van col\u00b7locar aquesta estructura sobre la bombolla d&#8217;aigua i sab\u00f3, el fil es va mantenir a sobre sense cap esfor\u00e7. Despr\u00e9s van\u00a0 posar a prova els l\u00edmits de la tensi\u00f3 superficial, amb precisi\u00f3, van trencar la tensi\u00f3 de dintre el fil i es va formar una circumfer\u00e8ncia exacta.<\/p>\n<p>El resultat: un aut\u00e8ntic &#8220;d\u00f2nut cient\u00edfic&#8221; que va sorprendre a tots i totes.<\/p>\n<p>Algunes fotos:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2646 size-full\" src=\"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2023\/10\/IMG_0702-COLLAGE-2-e1772148271768.jpg\" alt=\"\" width=\"905\" height=\"454\" srcset=\"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2023\/10\/IMG_0702-COLLAGE-2-e1772148271768.jpg 905w, https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2023\/10\/IMG_0702-COLLAGE-2-e1772148271768-300x150.jpg 300w, https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2023\/10\/IMG_0702-COLLAGE-2-e1772148271768-768x385.jpg 768w\" sizes=\"auto, (max-width: 905px) 100vw, 905px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3885 \" src=\"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2023\/09\/admin-ajax-6-e1772148367534.jpg\" alt=\"\" width=\"353\" height=\"357\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La tensi\u00f3 superficial de l&#8217;aigua \u00e9s una for\u00e7a sorprenent que mant\u00e9 l&#8217;aigua unida i permet a alguns insectes flotar sense problemes a la seva superf\u00edcie. Vam decidir aprofundir en aquest fenomen intrigant. Van crear una superf\u00edcie amb aigua i sab\u00f3. A continuaci\u00f3, van prendre un tros de fil i van fer un nus als extrems. [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":2648,"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":[70,164,4,5,102],"tags":[171],"class_list":["post-2645","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-experimentacio","category-experimentacio-tallers","category-portada","category-primaria","category-tallers","tag-experiments23-24"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/posts\/2645","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/comments?post=2645"}],"version-history":[{"count":2,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/posts\/2645\/revisions"}],"predecessor-version":[{"id":3886,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/posts\/2645\/revisions\/3886"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/media\/2648"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/media?parent=2645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/categories?post=2645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/tags?post=2645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}