{"id":23259,"date":"2021-03-12T18:48:47","date_gmt":"2021-03-12T17:48:47","guid":{"rendered":"https:\/\/agora.xtec.cat\/escolacanfabra\/?p=23259"},"modified":"2021-03-12T19:05:14","modified_gmt":"2021-03-12T18:05:14","slug":"5ec-aire-i-contaminacio","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/escolacanfabra\/general\/5ec-aire-i-contaminacio\/","title":{"rendered":"5\u00e8C: Aire i Contaminaci\u00f3"},"content":{"rendered":"

Al taller d’experimentaci\u00f3 sobre l’aire, avui hem parlat sobre la contaminaci\u00f3 de Barcelona deguda, majorit\u00e0riament,\u00a0 a les part\u00edcules en suspensi\u00f3\u00a0 i als \u00f2xids de nitrogen (NO2).
\nPer reflexionar sobre el paper que hi juguen els fen\u00f2mens meteorol\u00f2gics en la dispersi\u00f3 dels contaminants hem fet dos experiments:<\/p>\n

1-BUFA EL VENT: sobre una safata amb aigua hi hem abocat unes gotes de tinta xinesa per veure com s’escampa (aix\u00ed s’escampen els agents contaminants); primer hem vist com s’estenia i ocupava una part de la superf\u00edcie i despr\u00e9s, quan hi hem bufat a sobre, simulant el vent, la taca s’anava\u00a0 estenent per altres bandes del recipient. La conclusi\u00f3 de l’activitat \u00e9s que el vent neteja l’aire per\u00f2 no els contaminants, ja que aquests van a parar a altres llocs.<\/p>\n

2-L’EFECTE DE LA PLUJA: les dues mestres que \u00e9rem a l’aula hem enc\u00e8s uns llumins que hem tapat immediatament amb un pot de vidre. Quan hem aconseguit una bona quantitat de fum, hem girat el pot, li hem abocat unes gotes d’aigua, l’hem tapat i l’hem remenat. Despr\u00e9s de molts intents, hem aconseguit comprovar com el fum embrutava l’aigua. Hem comentat que si aquesta aigua fos pluja, veur\u00edem que la pluja neteja l’aire per\u00f2 els contaminants no desapareixen.<\/p>\n

Aqu\u00ed podeu veure les fotografies<\/a> dels dos experiments del taller.<\/p>\n","protected":false},"excerpt":{"rendered":"

Al taller d’experimentaci\u00f3 sobre l’aire, avui hem parlat sobre la contaminaci\u00f3 de Barcelona deguda, majorit\u00e0riament,\u00a0 a les part\u00edcules en suspensi\u00f3\u00a0 i als \u00f2xids de nitrogen (NO2). Per reflexionar sobre el paper que hi juguen els fen\u00f2mens meteorol\u00f2gics en la dispersi\u00f3 dels contaminants hem fet dos experiments: 1-BUFA EL VENT: sobre una safata amb aigua hi […]<\/p>\n","protected":false},"author":3,"featured_media":23260,"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-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":"","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-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":"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":""},"mobile":{"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":""}},"footnotes":""},"categories":[1,62,4],"tags":[],"class_list":["post-23259","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","category-nascuts-2010","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/escolacanfabra\/wp-json\/wp\/v2\/posts\/23259","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/escolacanfabra\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/escolacanfabra\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolacanfabra\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolacanfabra\/wp-json\/wp\/v2\/comments?post=23259"}],"version-history":[{"count":2,"href":"https:\/\/agora.xtec.cat\/escolacanfabra\/wp-json\/wp\/v2\/posts\/23259\/revisions"}],"predecessor-version":[{"id":23268,"href":"https:\/\/agora.xtec.cat\/escolacanfabra\/wp-json\/wp\/v2\/posts\/23259\/revisions\/23268"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolacanfabra\/wp-json\/wp\/v2\/media\/23260"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/escolacanfabra\/wp-json\/wp\/v2\/media?parent=23259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolacanfabra\/wp-json\/wp\/v2\/categories?post=23259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolacanfabra\/wp-json\/wp\/v2\/tags?post=23259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}