{"id":5497,"date":"2024-11-26T10:50:25","date_gmt":"2024-11-26T09:50:25","guid":{"rendered":"https:\/\/agora.xtec.cat\/escolaantonibergosbutsenit\/?p=5497"},"modified":"2024-11-26T10:50:25","modified_gmt":"2024-11-26T09:50:25","slug":"en-la-setmana-de-la-ciencia-la-classe-dels-caragols-hem-fet-un-experiment-es-possible-que-un-ou-tingui-vida-propia-amb-aquest-experiment-descobrirem-a-lou-saltari","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/escolaantonibergosbutsenit\/general\/en-la-setmana-de-la-ciencia-la-classe-dels-caragols-hem-fet-un-experiment-es-possible-que-un-ou-tingui-vida-propia-amb-aquest-experiment-descobrirem-a-lou-saltari\/","title":{"rendered":"EN LA SETMANA DE LA CI\u00c8NCIA LA CLASSE DELS “CARAGOLS” HEM FET UN EXPERIMENT\u00bf \u00c9s possible que un ou tingui vida pr\u00f2pia? Amb aquest experiment descobrirem a l’ou saltar\u00ed."},"content":{"rendered":"

L’\u00a0experiment de l’ou saltar\u00ed<\/strong>\u00a0\u00e9s totalment real, per\u00f2 requerir\u00e0 uns quants dies d’espera.<\/p>\n

Necessitem un ou, vinagre i un recipient amb prou espai perqu\u00e8 l’ou es pugui \u00abmoure\u00bb lliurement.<\/p>\n

Com fer aquest experiment?\u00a0<\/strong><\/p>\n

Per fer l’experiment de l’ou primer lloc el que hem de fer \u00e9s ficar l’ou al recipient que haguem escollit. A continuaci\u00f3, tirem vinagre fins a cobrir completament l’ou; si ens fixem, la closca ja comen\u00e7a a descompondre’s. Per acabar, tapem el tupper i esperem unes 48 hores.<\/p>\n

Per qu\u00e8 es produeix aquest efecte?\u00a0<\/strong><\/h2>\n

I despr\u00e9s de dos dies, aquest \u00e9s el resultat! Ara tenim un ou saltaire! Podem llen\u00e7ar-ho les vegades que vulguem, per\u00f2 no des de molt alt, ja que es pot trencar. Quan l’experiment es realitza, l’ou ha augmentat lleugerament la mida i s’ha tornat el\u00e0stic, per\u00f2 i per qu\u00e8? Molt f\u00e0cil!<\/p>\n

La closca de l’ou est\u00e0 feta de carbonat de calci. \u00c9s un compost qu\u00edmic que est\u00e0 format per carboni, calci i oxigen. Per contra, el vinagre com\u00fa est\u00e0 fet d’\u00e0cid ac\u00e8tic, un compost que produeix una gran reacci\u00f3 quan es barreja amb bicarbonat s\u00f2dic. En aquest cas estem fent servir carbonat de calci, que produeix igualment una reacci\u00f3, per\u00f2 no tan extrema. Les bombolles que es veuen en submergir l’ou al vinagre s\u00f3n di\u00f2xid de carboni.<\/p>\n

Com que l’ou est\u00e0 submergit en vinagre durant dos dies, aquest ha reaccionat amb la closca de l’ou dissolent-la.<\/p>\n

Despr\u00e9s de la reacci\u00f3 qu\u00edmica que ha tingut lloc, l’ou \u00e9s el\u00e0stic perqu\u00e8 el que ha quedat de l’ou \u00e9s la membrana semipermeable.<\/p>\n

A experimentar!\u00a0<\/strong><\/h2>\n

Despr\u00e9s de realitzar aquest experiment cient\u00edfic de l’ou i el vinagre, segur que t’has quedat amb ganes de m\u00e9s. El truc que hi ha darrere de l’ou saltar\u00ed no \u00e9s res m\u00e9s que una mica de ci\u00e8ncia. Ara que t’has endinsat m\u00e9s en el gran m\u00f3n de les reaccions qu\u00edmiques, t’atreviries a continuar experimentant?<\/p>\n

Et convidem a que portis aquest experiment al seg\u00fcent nivell. I per aix\u00f2 et proposem una s\u00e8rie de preguntes: tots els ous triguen el mateix dissoldre la seva closca? Tots ells s’inflen de la mateixa manera? Qu\u00e8 passa si en comptes d’utilitzar ous blancs haguessis fet servir ous marrons? I si fessis l’experiment de l’ou saltaire amb ous ecol\u00f2gics? T\u00e9 lloc la mateixa reacci\u00f3 qu\u00edmica en utilitzar diferents tipus de vinagre? S\u00f3n nom\u00e9s algunes preguntes que volem llan\u00e7ar-te perqu\u00e8 t’endinsis encara m\u00e9s en el genial m\u00f3n de la qu\u00edmica i les reaccions.<\/p>\n

Anima’t a continuar fent ci\u00e8ncia f\u00e0cilment des de casa.<\/p>\n

 <\/p>\n

\"\" \u00a0 \"\"\u00a0 \u00a0\"\" \"\" \u00a0 \"\" \u00a0 \"\" \"\"\u00a0 \u00a0\"\" \u00a0 \"\" \"\" \u00a0\"\" \"\" \"\"<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

L’\u00a0experiment de l’ou saltar\u00ed\u00a0\u00e9s totalment real, per\u00f2 requerir\u00e0 uns quants dies d’espera. Necessitem un ou, vinagre i un recipient amb prou espai perqu\u00e8 l’ou es pugui \u00abmoure\u00bb lliurement. Com fer aquest experiment?\u00a0 Per fer l’experiment de l’ou primer lloc el que hem de fer \u00e9s ficar l’ou al recipient que haguem escollit. A continuaci\u00f3, tirem […]<\/p>\n","protected":false},"author":1,"featured_media":5500,"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":[1,4],"tags":[],"class_list":["post-5497","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/escolaantonibergosbutsenit\/wp-json\/wp\/v2\/posts\/5497","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/escolaantonibergosbutsenit\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/escolaantonibergosbutsenit\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolaantonibergosbutsenit\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolaantonibergosbutsenit\/wp-json\/wp\/v2\/comments?post=5497"}],"version-history":[{"count":5,"href":"https:\/\/agora.xtec.cat\/escolaantonibergosbutsenit\/wp-json\/wp\/v2\/posts\/5497\/revisions"}],"predecessor-version":[{"id":5518,"href":"https:\/\/agora.xtec.cat\/escolaantonibergosbutsenit\/wp-json\/wp\/v2\/posts\/5497\/revisions\/5518"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolaantonibergosbutsenit\/wp-json\/wp\/v2\/media\/5500"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/escolaantonibergosbutsenit\/wp-json\/wp\/v2\/media?parent=5497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolaantonibergosbutsenit\/wp-json\/wp\/v2\/categories?post=5497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/escolaantonibergosbutsenit\/wp-json\/wp\/v2\/tags?post=5497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}