{"id":11147,"date":"2021-04-08T10:02:07","date_gmt":"2021-04-08T08:02:07","guid":{"rendered":"https:\/\/www.boboli.es\/boboliland\/?p=11147"},"modified":"2021-04-09T11:09:20","modified_gmt":"2021-04-09T09:09:20","slug":"experiment-a-liquid-seems-to-disappear","status":"publish","type":"post","link":"https:\/\/www.boboli.es\/boboliland\/en\/experiment-a-liquid-seems-to-disappear\/","title":{"rendered":"Experiment: A liquid seems to disappear"},"content":{"rendered":"\n<p>Today, we will show you a simple experiment in which a liquid seems to disappear. <strong>Do you believe that 2 + 2 is always equals to 4\u2026?<\/strong> Discover this!<\/p>\n\n\n\n<!--more-->\n\n\n\n<p><strong>Materials:<\/strong><\/p>\n\n\n\n<ul><li>Distilled water<\/li><li>Rubbing alcohol<\/li><li>A large test tube<\/li><li>A couple of containers<\/li><\/ul>\n\n\n\n<p><strong>Follow these steps:<\/strong><\/p>\n\n\n\n<ol><li>First, <strong>pour 200 millilitres of distilled water into the test tube<\/strong>. We will do this very carefully so as not to go beyond that amount because the measure must be exact.<\/li><li>We will now<strong> do the same with the alcohol<\/strong>. When we have 200 millilitres of the ethyl alcohol, we will pour it into the same glass that holds the distilled water.<\/li><li>When you get to this point you will logically think that there will be 400 millilitres in the glass, right? <strong>200 ml of distilled water + 200 ml of ethyl alcohol = 400 ml<\/strong>.<\/li><li>If we pour the contents of the glass back into the test tube, we will find that\u2026<strong> it does not add up to 400 millilitres!<\/strong><\/li><\/ol>\n\n\n\n<p><strong>How can that be?<\/strong><\/p>\n\n\n\n<p><strong>In science, 2 plus 2 is not always equal to 4<\/strong>. What has happened in this experiment is that the volume has contracted. If we were to weigh the mixture on a scale, we would see that the mass has not changed.<\/p>\n\n\n\n<p>This is because water and alcohol molecules interact in a special way. <strong>There is strong cohesion between them that draws them close together<\/strong>.&nbsp;<\/p>\n\n\n\n<p>This &#8220;bonding&#8221; brings about a reduction in the volume that we can perceive when we use quantities that are not very small. <strong>The greater the quantity we use, the greater will the difference in volume be<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Experiment: A liquid seems to disappear\" width=\"1778\" height=\"1000\" src=\"https:\/\/www.youtube.com\/embed\/HMAR1AxlOCA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Today, we will show you a simple experiment in which a liquid seems to disappear. Do you believe that 2 + 2 is always equals to 4\u2026? Discover this!<\/p>\n","protected":false},"author":3,"featured_media":11166,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"loftocean_post_format_gallery":"","loftocean_post_format_gallery_ids":"","loftocean_post_format_gallery_urls":"","loftocean_post_format_video_id":0,"loftocean_post_format_video_url":"","loftocean_post_format_video_type":"","loftocean_post_format_video":"","loftocean_post_format_audio_type":"","loftocean_post_format_audio_url":"","loftocean_post_format_audio_id":0,"loftocean_post_format_audio":"","loftocean-featured-post":"","loftocean-like-count":0,"loftocean-view-count":2403,"tinysalt_single_post_intro_label":"","tinysalt_single_post_intro_description":"","tinysalt_hide_post_featured_image":"","tinysalt_post_featured_media_position":"","tinysalt_hide_before_page_content_ad":"","tinysalt_hide_after_page_content_ad":"","tinysalt_hide_page_header":"","tinysalt_advanced_classname":"","tinysalt_page_featured_media_position":""},"categories":[578],"tags":[604],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.boboli.es\/boboliland\/en\/wp-json\/wp\/v2\/posts\/11147"}],"collection":[{"href":"https:\/\/www.boboli.es\/boboliland\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.boboli.es\/boboliland\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.boboli.es\/boboliland\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.boboli.es\/boboliland\/en\/wp-json\/wp\/v2\/comments?post=11147"}],"version-history":[{"count":2,"href":"https:\/\/www.boboli.es\/boboliland\/en\/wp-json\/wp\/v2\/posts\/11147\/revisions"}],"predecessor-version":[{"id":11167,"href":"https:\/\/www.boboli.es\/boboliland\/en\/wp-json\/wp\/v2\/posts\/11147\/revisions\/11167"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.boboli.es\/boboliland\/en\/wp-json\/wp\/v2\/media\/11166"}],"wp:attachment":[{"href":"https:\/\/www.boboli.es\/boboliland\/en\/wp-json\/wp\/v2\/media?parent=11147"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.boboli.es\/boboliland\/en\/wp-json\/wp\/v2\/categories?post=11147"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.boboli.es\/boboliland\/en\/wp-json\/wp\/v2\/tags?post=11147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}