{"id":3094,"date":"2020-05-10T20:56:39","date_gmt":"2020-05-10T18:56:39","guid":{"rendered":"https:\/\/agora.xtec.cat\/ceip-eldrac\/?p=3094"},"modified":"2020-05-10T21:14:30","modified_gmt":"2020-05-10T19:14:30","slug":"experimentem-amb-la-pressio-atmosferica","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/ceip-eldrac\/grup-superior\/experimentem-amb-la-pressio-atmosferica\/","title":{"rendered":"Experimentem amb la pressi\u00f3 atmosf\u00e8rica"},"content":{"rendered":"<p><span style=\"color: #00ccff;\"><em>Et proposem que descobreixis que \u00e9s aix\u00f2 que sempre parlen a les not\u00edcies del temps i s&#8217;anomena <span style=\"text-decoration: underline;\">pressi\u00f3 atmosf\u00e8rica<\/span>. A mesura que vagis veient coses i experimentant t&#8217;anirem fent preguntes. Les respostes anota-les en un full.\u00a0<\/em><\/span><\/p>\n<h4 style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>QU\u00c8 \u00c9S LA PRESSI\u00d3 ATMOSF\u00c8RICA?<\/strong><\/span><\/h4>\n<p><!--more--><\/p>\n<p><iframe loading=\"lazy\" title=\"La presi\u00f3n atmosf\u00e9rica\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/hVBLseIXMnY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p><span style=\"color: #ff0000;\">Preguntes:<\/span><\/p>\n<ul>\n<li>Qu\u00e8 \u00e9s la pressi\u00f3 atmosf\u00e8rica? De qu\u00e8 dep\u00e8n?<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #00ccff;\"><em>A continuaci\u00f3, farem tres experiments per con\u00e8ixer millor qu\u00e8 \u00e9s la pressi\u00f3 atmosf\u00e8rica o la pressi\u00f3 de l\u2019aire.<\/em><\/span><\/p>\n<h5 style=\"text-align: left;\"><span style=\"color: #339966;\">Primer experiment: l&#8217;aigua, l&#8217;espelma i el vas<\/span><\/h5>\n<p style=\"text-align: left;\"><strong><em>Material necessari:<\/em><\/strong><\/p>\n<ul>\n<li style=\"text-align: left;\">un recipient o plat fons amb aigua<\/li>\n<li style=\"text-align: left;\">un got<\/li>\n<li style=\"text-align: left;\">un vas<\/li>\n<li style=\"text-align: left;\">una espelma<\/li>\n<li style=\"text-align: left;\">llumins o un encenedor<\/li>\n<li style=\"text-align: left;\">colorant alimentari o tempera de color (opcional)<\/li>\n<\/ul>\n<p><strong><em>Procediment:<\/em><\/strong><\/p>\n<ol>\n<li>Agafem un recipient o un plat i li posem aigua de l&#8217;aixeta. Posarem una mica d&#8217;aigua, aproximadament 2 cm. I a l&#8217;aigua li posarem colorant alimentari o tempera de color per observar millor el resultat.<\/li>\n<\/ol>\n<p>2. Encendrem l&#8217;espelma i tot seguit la posarem dins del recipient o del plat amb aigua.<\/p>\n<p>3. Amb l&#8217;espelma encesa dins del recipient o plat, agafarem el vas i el posarem cap per avall; de tal manera que l&#8217;espelma quedi dins del got.<\/p>\n<p>4. Observarem una estona qu\u00e8 passa.<\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-3094 gallery-columns-3 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/IMG_3586-e1588972497758-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-3238\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-3238'>\n\t\t\t\tplat amb aigua i li tirem colorant\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/IMG_3587-e1588972528698-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-3239\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-3239'>\n\t\t\t\tl&#8217;aigua amb el colorant\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/IMG_3589-e1588972566341-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-3240\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-3240'>\n\t\t\t\tposem una espelma dins del plat\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/IMG_3590-e1588972587467-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-3241\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-3241'>\n\t\t\t\ttapem l&#8217;espelma\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/IMG_3592-e1588972601557-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-3242\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-3242'>\n\t\t\t\tdeixem el recipient\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/IMG_3593-e1588972621315-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-1-3243\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-3243'>\n\t\t\t\tobservem qu\u00e8 passa\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/>\n\t\t<\/div>\n\n<p><span style=\"color: #ff0000;\"><strong><em style=\"font-family: inherit; font-size: 1em;\">Preguntes:<\/em><\/strong><\/span><\/p>\n<ul>\n<li>Qu\u00e8 passa amb l&#8217;espelma? Per qu\u00e8 creus que passa?<\/li>\n<li>Qu\u00e8 passa amb l&#8217;aigua tant dins del got com fora? Per qu\u00e8 passa?<\/li>\n<\/ul>\n<h5><\/h5>\n<p>&nbsp;<\/p>\n<h5><span style=\"color: #339966;\">Segon experiment: el globus es mou<\/span><\/h5>\n<p><strong><em>Material necessari:<\/em><\/strong><\/p>\n<ul>\n<li>una ampolla de vidre<\/li>\n<li>aigua calenta i aigua freda<\/li>\n<li>un globus<\/li>\n<\/ul>\n<p><strong><em>Procediment:<\/em><\/strong><\/p>\n<ol>\n<li>Agafem l&#8217;ampolla de vidre buida i introdu\u00efm l&#8217;aigua calenta fins a omplir-la.<\/li>\n<li>Un cop plena d&#8217;aigua calenta, la deixem uns 15-20 segons i buidem tota l&#8217;aigua.<\/li>\n<li>Tot seguit i sense perdre temps posem el globus al coll de l&#8217;ampolla de vidre buida.<\/li>\n<li>Llavors tirem aigua freda, de l&#8217;aixeta mateix, a l&#8217;ampolla.<\/li>\n<li>Observeu qu\u00e8 passa.<\/li>\n<\/ol>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-2 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-2 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-2 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-2 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-2' class='gallery galleryid-3094 gallery-columns-3 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/IMG_3599-2-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-2-3244\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-2-3244'>\n\t\t\t\tuna ampolla de vidre\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/IMG_3603-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-2-3245\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-2-3245'>\n\t\t\t\ttirem l&#8217;aigua calenta i posem un globus\n\t\t\t\t<\/dd><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n<p><span style=\"color: #ff0000;\"><strong><em style=\"font-family: inherit; font-size: 1em;\">Preguntes:<\/em><\/strong><\/span><\/p>\n<ul>\n<li>Qu\u00e8 passa amb el globus? Per qu\u00e8 creus que passa?<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h5><span style=\"color: #339966;\">Tercer experiment: l&#8217;ou dur<\/span><\/h5>\n<p><strong><em>Material necessari:<\/em><\/strong><\/p>\n<ul>\n<li>una recipient de vidre amb una boca ample<\/li>\n<li>llumins o un encenedor<\/li>\n<li>un ou dur<\/li>\n<\/ul>\n<p><strong><em>Procediment:<\/em><\/strong><\/p>\n<ol>\n<li>Fem bullir un ou i li traiem la closca.<\/li>\n<li>Agafem el recipient de vidre i posem dins un llum\u00ed enc\u00e8s. Una altra opci\u00f3 seria encendre una mica de paper de diari amb l&#8217;encenedor o llumins i tirar-lo dins del recipient.<\/li>\n<li>Agafem l&#8217;ou dur i el posem a la boca del recipient i observem.<\/li>\n<\/ol>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-3 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-3 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-3 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-3 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-3' class='gallery galleryid-3094 gallery-columns-3 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/IMG_3606-2-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-3-3249\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-3-3249'>\n\t\t\t\tou dur\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/unnamed-1-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-3-3251\" srcset=\"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/unnamed-1-150x150.png 150w, https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/unnamed-1-300x300.png 300w, https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/unnamed-1.png 512w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-3-3251'>\n\t\t\t\trecipient de vidre amb boca gran\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-content\/uploads\/usu2075\/2020\/05\/unnamed-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" aria-describedby=\"gallery-3-3253\" \/>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-3-3253'>\n\t\t\t\tfoc a dins i posar l&#8217;ou dur\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/>\n\t\t<\/div>\n\n<p><span style=\"color: #ff0000;\"><strong><em style=\"font-family: inherit; font-size: 1em;\">Preguntes:<\/em><\/strong><\/span><\/p>\n<ul>\n<li>Qu\u00e8 passa amb l&#8217;ou dur? Per qu\u00e8 creus que passa?<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><em><span style=\"color: #00ccff;\">Per \u00faltim, observa aquest v\u00eddeo del catxalot i respon:<\/span><\/em><\/p>\n<p><a href=\"https:\/\/www.youtube.com\/watch?time_continue=192&#038;v=aoMj5hmq718&#038;feature=emb_title\">https:\/\/www.youtube.com\/watch?time_continue=192&amp;v=aoMj5hmq718&amp;feature=emb_title<\/a><\/p>\n<p><em><strong><span style=\"color: #ff0000;\">Pregunta:<\/span><\/strong><\/em><\/p>\n<ul>\n<li>si baix\u00e9ssim a 2000 metres de profunditat, fins i tot amb ampolles d\u2019oxigen, qu\u00e8 ens passaria? Perqu\u00e8?<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Et proposem que descobreixis que \u00e9s aix\u00f2 que sempre parlen a les not\u00edcies del temps i s&#8217;anomena pressi\u00f3 atmosf\u00e8rica. A mesura que vagis veient coses i experimentant t&#8217;anirem fent preguntes. Les respostes anota-les en un full.\u00a0<br \/>\nQU\u00c8 \u00c9S LA PRESSI\u00d3 ATMOSF\u00c8RICA?<\/p>\n","protected":false},"author":6,"featured_media":3139,"comment_status":"closed","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,"footnotes":""},"categories":[74],"tags":[85],"class_list":["post-3094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grup-superior","tag-joemquedoacasa"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-json\/wp\/v2\/posts\/3094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-json\/wp\/v2\/comments?post=3094"}],"version-history":[{"count":5,"href":"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-json\/wp\/v2\/posts\/3094\/revisions"}],"predecessor-version":[{"id":3368,"href":"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-json\/wp\/v2\/posts\/3094\/revisions\/3368"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-json\/wp\/v2\/media\/3139"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-json\/wp\/v2\/media?parent=3094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-json\/wp\/v2\/categories?post=3094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceip-eldrac\/wp-json\/wp\/v2\/tags?post=3094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}