{"id":3433,"date":"2025-09-22T10:08:28","date_gmt":"2025-09-22T08:08:28","guid":{"rendered":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/?p=3433"},"modified":"2026-03-26T15:28:06","modified_gmt":"2026-03-26T14:28:06","slug":"taller-experimentacio-coet-volador-amb-pastilles-efervescents","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/portada\/taller-experimentacio-coet-volador-amb-pastilles-efervescents\/","title":{"rendered":"Taller experimentaci\u00f3: coet volador amb pastilles efervescents."},"content":{"rendered":"<p data-start=\"204\" data-end=\"458\">Aquesta setmana a classe de prim\u00e0ria hem fet un experiment tan senzill com sorprenent: <strong data-start=\"279\" data-end=\"348\">hem constru\u00eft un petit coet amb un tub de pastilles efervescents!<\/strong> A m\u00e9s de passar-ho molt b\u00e9, hem pogut entendre alguns conceptes de ci\u00e8ncia d\u2019una manera pr\u00e0ctica i divertida.<\/p>\n<h3 data-start=\"460\" data-end=\"483\"><strong data-start=\"464\" data-end=\"483\">Com ho hem fet:<\/strong><\/h3>\n<ol data-start=\"485\" data-end=\"975\">\n<li data-start=\"592\" data-end=\"649\">\n<p data-start=\"595\" data-end=\"649\">Hi hem posat una pastilla efervescent a dins.<\/p>\n<\/li>\n<li data-start=\"650\" data-end=\"699\">\n<p data-start=\"653\" data-end=\"699\">Amb una xeringa, hem omplert una mica d\u2019aigua.<\/p>\n<\/li>\n<li data-start=\"700\" data-end=\"755\">\n<p data-start=\"703\" data-end=\"755\">Hem abocat l\u2019aigua dins el tub, sobre les pastilles.<\/p>\n<\/li>\n<li data-start=\"756\" data-end=\"808\">\n<p data-start=\"759\" data-end=\"808\">De seguida l\u2019hem tapat i l\u2019hem sacsejat suaument.<\/p>\n<\/li>\n<li data-start=\"809\" data-end=\"889\">\n<p data-start=\"812\" data-end=\"889\">R\u00e0pidament, hem col\u00b7locat el tub mirant cap amunt, amb el tap tocant el terra.<\/p>\n<\/li>\n<li data-start=\"890\" data-end=\"975\">\n<p data-start=\"893\" data-end=\"975\">Hem fet uns passos enrere i\u2026 <strong data-start=\"922\" data-end=\"975\">al cap de pocs segons el coet ha sortit disparat!<\/strong><\/p>\n<\/li>\n<\/ol>\n<h3 data-start=\"977\" data-end=\"1010\"><strong data-start=\"981\" data-end=\"1010\">Qu\u00e8 ha passat exactament?<\/strong><\/h3>\n<p data-start=\"1012\" data-end=\"1069\">Darrere d\u2019aquest efecte hi ha molta ci\u00e8ncia:<\/p>\n<ul data-start=\"1071\" data-end=\"1743\">\n<li data-start=\"1071\" data-end=\"1227\">\n<p data-start=\"1073\" data-end=\"1227\"><strong data-start=\"1073\" data-end=\"1093\">Reacci\u00f3 qu\u00edmica:<\/strong><br data-start=\"1093\" data-end=\"1096\" \/>Quan les pastilles efervescents es barregen amb l\u2019aigua, alliberen di\u00f2xid de carboni (CO\u2082), formant moltes bombolles dins el tub.<\/p>\n<\/li>\n<li data-start=\"1229\" data-end=\"1365\">\n<p data-start=\"1231\" data-end=\"1365\"><strong data-start=\"1231\" data-end=\"1254\">Augment de pressi\u00f3:<\/strong><br data-start=\"1254\" data-end=\"1257\" \/>Com que el tub est\u00e0 ben tancat, el gas no pot escapar i la pressi\u00f3 interior va augmentant cada vegada m\u00e9s.<\/p>\n<\/li>\n<li data-start=\"1367\" data-end=\"1516\">\n<p data-start=\"1369\" data-end=\"1516\"><strong data-start=\"1369\" data-end=\"1393\">Explosi\u00f3 controlada:<\/strong><br data-start=\"1393\" data-end=\"1396\" \/>Arriba un moment en qu\u00e8 la pressi\u00f3 \u00e9s tan alta que el tap ja no la pot aguantar. Salta cap avall i el gas surt de cop.<\/p>\n<\/li>\n<li data-start=\"1518\" data-end=\"1743\">\n<p data-start=\"1520\" data-end=\"1743\"><strong data-start=\"1520\" data-end=\"1547\">Tercera llei de Newton:<\/strong><br data-start=\"1547\" data-end=\"1550\" \/>Segons aquesta llei, a cada acci\u00f3 hi correspon una reacci\u00f3 de la mateixa intensitat en sentit contrari.<br data-start=\"1655\" data-end=\"1658\" \/>El gas surt cap avall, i aix\u00f2 empeny el tub cap amunt, fent-lo volar com un coet.<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1766\" data-end=\"1940\">Us deixem algunes fotos:<\/p>\n<p data-start=\"1766\" data-end=\"1940\"><a href=\"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2025\/11\/IMG_5569-COLLAGE.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-3434\" src=\"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2025\/11\/IMG_5569-COLLAGE.jpg\" alt=\"\" width=\"610\" height=\"610\" srcset=\"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2025\/11\/IMG_5569-COLLAGE.jpg 890w, https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2025\/11\/IMG_5569-COLLAGE-300x300.jpg 300w, https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2025\/11\/IMG_5569-COLLAGE-150x150.jpg 150w, https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-content\/uploads\/usu1542\/2025\/11\/IMG_5569-COLLAGE-768x768.jpg 768w\" sizes=\"auto, (max-width: 610px) 100vw, 610px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aquesta setmana a classe de prim\u00e0ria hem fet un experiment tan senzill com sorprenent: hem constru\u00eft un petit coet amb un tub de pastilles efervescents! A m\u00e9s de passar-ho molt b\u00e9, hem pogut entendre alguns conceptes de ci\u00e8ncia d\u2019una manera pr\u00e0ctica i divertida. Com ho hem fet: Hi hem posat una pastilla efervescent a dins. [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":3435,"comment_status":"open","ping_status":"open","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":"default","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":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","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":[70,164,4,5,163,102],"tags":[183,185,184],"class_list":["post-3433","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-experimentacio","category-experimentacio-tallers","category-portada","category-primaria","category-primaria-2","category-tallers","tag-curs-2025-2026","tag-tallerexperiments2526","tag-tallers"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/posts\/3433","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=3433"}],"version-history":[{"count":1,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/posts\/3433\/revisions"}],"predecessor-version":[{"id":3436,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/posts\/3433\/revisions\/3436"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/media\/3435"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/media?parent=3433"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/categories?post=3433"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/escoladelpoblenoudeldelta\/wp-json\/wp\/v2\/tags?post=3433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}