{"id":14618,"date":"2025-11-03T09:00:37","date_gmt":"2025-11-03T08:00:37","guid":{"rendered":"https:\/\/agora.xtec.cat\/escarrels-alamus\/?p=14618"},"modified":"2025-10-30T19:55:37","modified_gmt":"2025-10-30T18:55:37","slug":"experimentem-amb-les-mescles","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/escarrels-alamus\/portada\/experimentem-amb-les-mescles\/","title":{"rendered":"EXPERIMENTEM AMB LES MESCLES"},"content":{"rendered":"

Del 3 al 7 de novembre celebrem la “Setmana de la ci\u00e8ncia” i des del Cicle Superior volem compartir amb vosaltres alguns experiments que hem realitzat durant el primer tema de Coneixement del Medi d’aquest curs: La mat\u00e8ria.<\/p>\n

Ja sabeu que treballem a partir del m\u00e8tode cient\u00edfic. Hem investigat en petits grups i hem hagut de fer cerca d’informaci\u00f3 per anar verificant o desmentint les hip\u00f2tesis que ens plantej\u00e0vem.<\/p>\n

\"\"<\/a> \"\"<\/a> \"\"<\/a> \"\"<\/a>Per\u00f2 el m\u00e9s divertit ha estat remenar materials, investigar i descobrir coses sobre les propietats de la mat\u00e8ria i com mesurar-les.<\/p>\n

Sabr\u00edeu demostrar que l’aire pesa? Doncs nosaltres ho hem aconseguit amb un senzill experiment!<\/p>\n

\"EXPERIENCIAS<\/p>\n

Aqu\u00ed teniu unes imatges de la investigaci\u00f3 que vam dur a terme sobre la separaci\u00f3 de mescles:<\/p>\n

Cada grup es va trobar sobre la taula una mescla heterog\u00e8nia i diversos instruments que pod\u00edem fer servir per separar els seus elements.<\/p>\n

Aquesta va resultar f\u00e0cil de deduir… Calia separar les pedres de diferents tamanys. Tots hem jugat a fer “sorra fina” al sorral del pati!<\/p>\n

\"\"<\/a> \"\"<\/a>Vam aprendre que aquest m\u00e8tode s’anomena GARBELLAMENT, perqu\u00e8 els instruments que fem servir per separar les pedres de diferents tamanys s’anomenen “garbells”.<\/p>\n

La segona de les propostes consistia en separar serradures de ferro i serradures de fusta…<\/p>\n

\"\"<\/a>\"\"<\/a>\"\"<\/a><\/p>\n

La t\u00e8cnica de la IMANTACI\u00d3 tampoc va ser gaire complicada de dur a terme.<\/p>\n

Aqu\u00ed per\u00f2, ja ens trobem amb una proposta una mica m\u00e9s complicada: hem de separar les herbes que han quedat a l’aigua despr\u00e9s de fer una infusi\u00f3 i tenim uns instruments que no ens resulten gaire familiars…<\/p>\n

\"\"<\/a><\/p>\n

\"\"<\/a>\"\"<\/a>Encara que us sembli mentida, no sab\u00edem com utilitzar un filtre i com posar-lo dins d’un embut. Finalment vam poder dur a terme la FILTRACI\u00d3.<\/p>\n

I la darrera va ser la m\u00e9s divertida, perqu\u00e8 inclo\u00efa un aparell que no hav\u00edem vist mai: un embut de decantaci\u00f3!<\/p>\n

\"\"<\/a>\"\"<\/a> \"\"<\/a>A alguns grups ens va costar una mica endevinar com funcionava i, a base de fer assaig i error, vam aconseguir separar l’aigua de l’oli. La t\u00e8cnica s’anomena DECANTACI\u00d3.<\/p>\n

Finalment calia revisar les nostres hip\u00f2tesis inicials i refer-les o ratificar-les, segons els resultats de la nostra experimentaci\u00f3.<\/p>\n

\"\"<\/a> \"\"<\/a><\/p>\n

Esperem que us hagi resultat interessant. Nosaltres, per la nostra banda, ens ho hem passat pipa! Bona setmana de la ci\u00e8ncia!<\/p>\n

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

Del 3 al 7 de novembre celebrem la “Setmana de la ci\u00e8ncia” i des del Cicle Superior volem compartir amb vosaltres alguns experiments que hem realitzat durant el primer tema de Coneixement del Medi d’aquest curs: La mat\u00e8ria.\u00a0<\/p>\n","protected":false},"author":1,"featured_media":14630,"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":"","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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