{"id":2252,"date":"2017-12-01T13:29:45","date_gmt":"2017-12-01T12:29:45","guid":{"rendered":"http:\/\/agora.xtec.cat\/esc-elfar\/?p=2252"},"modified":"2017-12-01T14:19:47","modified_gmt":"2017-12-01T13:19:47","slug":"cromatografia-de-fulles-de-tardor","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/esc-elfar\/nivells\/cromatografia-de-fulles-de-tardor\/","title":{"rendered":"Cromatografia de fulles de tardor"},"content":{"rendered":"

Els alumnes de CI aquesta setmana han realitzat una cromatografia de les fulles de la tardor.<\/p>\n

La cromatografia \u00e9s una t\u00e8cnica utilitzada per separar pigments.\u00a0\u00a0En aquest cas hem pogut comprovar que les fulles verdes tenen una gran quantitat de clorofil\u00b7la, mentre que la xantofil\u00b7la \u00e9s el pigment que dona el color a les fulles grogues o marronoses tan caracter\u00edstiques de la tardor.<\/p>\n

Per a realitzar l’experiment hem triturat un grapat de fulles de cada color que hem barrejat amb alcohol.<\/p>\n

\"\"<\/a><\/p>\n

Un cop realitzat aix\u00f2 hem deixat reposar la barreja al llarg d’una nit i l’endem\u00e0 l’hem passat pel colador.<\/p>\n

\"\"<\/a>El resultat l’han estat dos l\u00edquids, un de color verd intens i l’altre ocre.<\/p>\n

Ara ja nom\u00e9s ens faltava impregnar un paper i comprovar les l\u00ednies que perfilen els pigments de la fulla.<\/p>\n

\u00a0Mireu…\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Els alumnes de CI aquesta setmana han realitzat una cromatografia de les fulles de la tardor.
\nLa cromatografia \u00e9s una t\u00e8cnica utilitzada per separar pigments.\u00a0\u00a0En aquest cas hem pogut comprovar que les fulles verdes tenen una gran quantitat de clorofil\u00b7la, mentre que la xantofil\u00b7la \u00e9s el… Llegeix m\u00e9s\u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":2253,"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,"footnotes":""},"categories":[109,1],"tags":[69,70,55],"class_list":["post-2252","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-experimentacio","category-nivells","tag-1r","tag-2n","tag-experimentacio"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/posts\/2252","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/comments?post=2252"}],"version-history":[{"count":4,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/posts\/2252\/revisions"}],"predecessor-version":[{"id":2268,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/posts\/2252\/revisions\/2268"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/media\/2253"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/media?parent=2252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/categories?post=2252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/tags?post=2252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}