{"id":346,"date":"2014-10-18T10:31:00","date_gmt":"2014-10-18T09:31:00","guid":{"rendered":"http:\/\/agora.xtec.cat\/ies-dperramon\/general\/practica-biologia-1r-bat\/"},"modified":"2014-10-18T10:31:00","modified_gmt":"2014-10-18T09:31:00","slug":"practica-biologia-1r-bat","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/ies-dperramon\/general\/practica-biologia-1r-bat\/","title":{"rendered":"Pr\u00e0ctica Biologia 1r BAT"},"content":{"rendered":"

Podem veure els diferents v\u00eddeos de pr\u00e0ctiques de Biologia de l’alumnat de 1r de Batxillerat Cient\u00edfic, amb el seu professor Joan Gahete:<\/p>\n

“Durant la primera setmana d\u2019octubre <\/span> hem estat realitzant uns experiments relacionats amb la tensi\u00f3 superficial de l\u2019aigua.<\/span><\/div>\n
1r experiment:<\/b> <\/span>Una pilota de ping pong capritxosa<\/span><\/div>\n
Quan el recipent est\u00e0 ple la pilota de ping pong es queda al mig. Si no ho est\u00e0 s\u2019enganxa a les cantonades<\/div>\n
<\/object><\/div>\n
<\/div>\n
2n experiment.<\/b><\/div>\n
Posem una capa de pebre. En el moment que es posa una gota de sab\u00f3 es trenca la tensi\u00f3 superficial i se separa tot el pebre.<\/div>\n
<\/object><\/div>\n
<\/div>\n
<\/div>\n
3r experiment:<\/b> Capil\u00b7laritat. El l\u00edquid puja per les parets del portaobjectes per capil\u00b7laritat, degut a que les forces intermoleculars que mantenen unides les mol\u00e8cules d’aigua s\u00f3n menors que l’adhesi\u00f3 de les mol\u00e8cules d’aigua amb les parets del cristall.
El pes del propi l\u00edquid limita l’al\u00e7ada que pot aconseguir entre els portaobjectes.
En el nostre experiment, l’al\u00e7ada que aconsegueix el l\u00edquid entre el portaobjectes \u00e9s major en la part que t\u00e9 menys separaci\u00f3 degut a que en aquesta zona tan estreta la massa d’aigua i el pes s\u00f3n menors.<\/p>\n<\/div>\n
<\/div>\n
<\/object><\/div>\n
\n
<\/div>\n<\/div>\n
4t experiment<\/b><\/div>\n
Quan es posa sab\u00f3 en el forat de la fletxa es trenca la tensi\u00f3 superficial i provoca un efecte d\u2019acci\u00f3-reacci\u00f3<\/div>\n
<\/div>\n

<\/object>
<\/span><\/span><\/p>\n
http:\/\/domenecperramon.blogspot.com\/feeds\/posts\/default<\/div>\n","protected":false},"excerpt":{"rendered":"

Podem veure els diferents v\u00eddeos de pr\u00e0ctiques de Biologia de l’alumnat de 1r de Batxillerat Cient\u00edfic, amb el seu professor Joan Gahete: “Durant la primera setmana d\u2019octubre hem estat realitzant uns experiments relacionats amb la tensi\u00f3 superficial de l\u2019aigua. 1r experiment: Una pilota de ping pong capritxosa Quan el recipent est\u00e0 ple la pilota de […]<\/p>\n","protected":false},"author":1,"featured_media":0,"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 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":[1],"tags":[],"class_list":["post-346","post","type-post","status-publish","format-standard","hentry","category-general"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/ies-dperramon\/wp-json\/wp\/v2\/posts\/346","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/ies-dperramon\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/ies-dperramon\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ies-dperramon\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ies-dperramon\/wp-json\/wp\/v2\/comments?post=346"}],"version-history":[{"count":0,"href":"https:\/\/agora.xtec.cat\/ies-dperramon\/wp-json\/wp\/v2\/posts\/346\/revisions"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/ies-dperramon\/wp-json\/wp\/v2\/media?parent=346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ies-dperramon\/wp-json\/wp\/v2\/categories?post=346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ies-dperramon\/wp-json\/wp\/v2\/tags?post=346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}