{"id":3592,"date":"2017-10-17T22:16:44","date_gmt":"2017-10-17T20:16:44","guid":{"rendered":"http:\/\/agora.xtec.cat\/ceipflama\/?p=3592"},"modified":"2017-10-17T22:24:02","modified_gmt":"2017-10-17T20:24:02","slug":"cleaning-pennies","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/ceipflama\/primaria\/cleaning-pennies\/","title":{"rendered":"CLEANING PENNIES"},"content":{"rendered":"<p>Hi everybody!<\/p>\n<p>Our experiment is about cleaning a pennies. But how? Mainly, using an acid to remove the oxide layer from the surface of the coin along with a tiny amount of other dirt or soils. Why do dirty pennies become clean after being soaked in acids?<\/p>\n<p>We filled a bowl with water and then we filled it with vinegar. After that, we added a teaspon of salt. We placed the pennies in the vinegar and salt solution and we waited for a short time.<\/p>\n<p>We were so surprised by the magical chemical reaction!The acid\u00a0 attacks the copper plate on a penny so it removes the dirt ! Isn&#8217;t that amazing? You can try it at home!<\/p>\n<p><a href=\"https:\/\/photos.app.goo.gl\/xNZZS1lFkcUuYSgt2\">https:\/\/photos.app.goo.gl\/xNZZS1lFkcUuYSgt2<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi everybody! Our experiment is about cleaning a pennies. But how? Mainly, using an acid to remove the oxide layer from the surface of the coin along with a tiny amount of other dirt or soils. Why do dirty pennies become clean after being soaked in acids? We filled a bowl with water and then [&hellip;]<\/p>\n","protected":false},"author":27,"featured_media":0,"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":[5,11],"tags":[],"class_list":["post-3592","post","type-post","status-publish","format-standard","hentry","category-primaria","category-promocio-2009-6e-curs-2020-21"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/ceipflama\/wp-json\/wp\/v2\/posts\/3592","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/ceipflama\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/ceipflama\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceipflama\/wp-json\/wp\/v2\/users\/27"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceipflama\/wp-json\/wp\/v2\/comments?post=3592"}],"version-history":[{"count":1,"href":"https:\/\/agora.xtec.cat\/ceipflama\/wp-json\/wp\/v2\/posts\/3592\/revisions"}],"predecessor-version":[{"id":3593,"href":"https:\/\/agora.xtec.cat\/ceipflama\/wp-json\/wp\/v2\/posts\/3592\/revisions\/3593"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/ceipflama\/wp-json\/wp\/v2\/media?parent=3592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceipflama\/wp-json\/wp\/v2\/categories?post=3592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceipflama\/wp-json\/wp\/v2\/tags?post=3592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}