{"id":8803,"date":"2021-02-26T21:03:43","date_gmt":"2021-02-26T20:03:43","guid":{"rendered":"http:\/\/agora.xtec.cat\/zergavarresa\/?p=8803"},"modified":"2021-03-04T22:44:07","modified_gmt":"2021-03-04T21:44:07","slug":"lou-flota","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/zergavarresa\/escola-els-roures\/grups-els-roures\/cicle-superior-els-roures\/lou-flota\/","title":{"rendered":"L’ou flota?"},"content":{"rendered":"

Qu\u00e8 en penseu de fer una mica de m\u00e0gia? Creieu que un ou pot flotar a l\u2019aigua?<\/p>\n

Posem un ou amb un got d’aigua i un altre amb aigua amb sal.<\/p>\n

Qu\u00e8 passa?<\/h3>\n

Veiem que en el\u00a0primer got on nom\u00e9s hi ha aigua,\u00a0l\u2019ou s\u2019enfonsa completament, mentre que en el segon\u00a0got\u00a0l\u2019ou queda flotant a la part superior.<\/p>\n

Aix\u00f2 passa perqu\u00e8\u00a0la densitat de l\u2019aigua i la barreja aigua-sal s\u00f3n diferents.<\/p>\n

La\u00a0densitat\u00a0\u00e9s una\u00a0propietat espec\u00edfica de cada subst\u00e0ncia\u00a0que indica la\u00a0relaci\u00f3 entre la massa i el volum que ocupa. Com m\u00e9s massa i menys volum tingui aquesta subst\u00e0ncia, la densitat ser\u00e0 m\u00e9s gran..<\/p>\n

 <\/p>\n

Sabies que aquest fenomen \u00e9s el que fa surar els vaixells?\u00a0Els vaixells suren gr\u00e0cies a la densitat. Un vaixell flota perqu\u00e8 t\u00e9 menor densitat que l\u2019aigua del mar per la seva determinada massa i el seu volum amb el qual est\u00e0 constru\u00eft.<\/p>\n

 <\/p>\n

Podeu veure les fotos aqu\u00ed<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Qu\u00e8 en penseu de fer una mica de m\u00e0gia? Creieu que un ou pot flotar a l\u2019aigua? Posem un ou amb un got d’aigua i un altre amb aigua amb sal. Qu\u00e8 passa? Veiem que en el\u00a0primer got on nom\u00e9s hi ha aigua,\u00a0l\u2019ou s\u2019enfonsa completament, mentre que en el segon\u00a0got\u00a0l\u2019ou queda flotant a la part […]<\/p>\n","protected":false},"author":45,"featured_media":8804,"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":[99,103],"tags":[106,198,322],"class_list":["post-8803","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cicle-superior-els-roures","category-escola-els-roures","tag-cicle-superior","tag-escola-els-roures","tag-experimentacio"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/zergavarresa\/wp-json\/wp\/v2\/posts\/8803","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/zergavarresa\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/zergavarresa\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/zergavarresa\/wp-json\/wp\/v2\/users\/45"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/zergavarresa\/wp-json\/wp\/v2\/comments?post=8803"}],"version-history":[{"count":2,"href":"https:\/\/agora.xtec.cat\/zergavarresa\/wp-json\/wp\/v2\/posts\/8803\/revisions"}],"predecessor-version":[{"id":8831,"href":"https:\/\/agora.xtec.cat\/zergavarresa\/wp-json\/wp\/v2\/posts\/8803\/revisions\/8831"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/zergavarresa\/wp-json\/wp\/v2\/media\/8804"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/zergavarresa\/wp-json\/wp\/v2\/media?parent=8803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/zergavarresa\/wp-json\/wp\/v2\/categories?post=8803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/zergavarresa\/wp-json\/wp\/v2\/tags?post=8803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}