{"id":5144,"date":"2016-11-26T17:57:34","date_gmt":"2016-11-26T16:57:34","guid":{"rendered":"http:\/\/agora.xtec.cat\/institutmontserratroig\/?p=5144"},"modified":"2021-11-09T16:00:59","modified_gmt":"2021-11-09T15:00:59","slug":"lexplicacio-dun-experiment","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/institutmontserratroig\/eso\/lexplicacio-dun-experiment\/","title":{"rendered":"L&#8217;explicaci\u00f3 d&#8217;un experiment"},"content":{"rendered":"<p><a href=\"http:\/\/agora.xtec.cat\/institutmontserratroig\/general\/la-nostra-setmana-de-la-ciencia\/\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5151 size-full\" title=\"Clica per tornar a &quot;La nostra setmana de la Ci\u00e8ncia&quot;\" src=\"http:\/\/agora.xtec.cat\/institutmontserratroig\/wp-content\/uploads\/usu342\/2016\/11\/ba\u0300ner-setmana-cie\u0300ncia-secretari-2016.png\" alt=\"baner-setmana-ciencia-secretari-2016\" width=\"1334\" height=\"159\" srcset=\"https:\/\/agora.xtec.cat\/institutmontserratroig\/wp-content\/uploads\/usu342\/2016\/11\/ba\u0300ner-setmana-cie\u0300ncia-secretari-2016.png 1334w, https:\/\/agora.xtec.cat\/institutmontserratroig\/wp-content\/uploads\/usu342\/2016\/11\/ba\u0300ner-setmana-cie\u0300ncia-secretari-2016-300x36.png 300w, https:\/\/agora.xtec.cat\/institutmontserratroig\/wp-content\/uploads\/usu342\/2016\/11\/ba\u0300ner-setmana-cie\u0300ncia-secretari-2016-768x92.png 768w, https:\/\/agora.xtec.cat\/institutmontserratroig\/wp-content\/uploads\/usu342\/2016\/11\/ba\u0300ner-setmana-cie\u0300ncia-secretari-2016-1024x122.png 1024w\" sizes=\"auto, (max-width: 1334px) 100vw, 1334px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-5149 alignright\" src=\"http:\/\/agora.xtec.cat\/institutmontserratroig\/wp-content\/uploads\/usu342\/2016\/11\/foto-explicacio\u0301-experiment-300x235.png\" alt=\"foto-explicacio-experiment\" width=\"300\" height=\"235\" srcset=\"https:\/\/agora.xtec.cat\/institutmontserratroig\/wp-content\/uploads\/usu342\/2016\/11\/foto-explicacio\u0301-experiment-300x235.png 300w, https:\/\/agora.xtec.cat\/institutmontserratroig\/wp-content\/uploads\/usu342\/2016\/11\/foto-explicacio\u0301-experiment.png 325w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>Dimarts dia 15 de novembre, a les 11:45, els alumnes de 2n d\u2019ESO van assistir a una classe que feien els alumnes de 4t B.<\/p>\n<p style=\"text-align: justify;\">Els alumnes de 4t, ara professors, van comen\u00e7ar explicant el proc\u00e9s de l\u2019experiment i els passos que havien de fer, els diferents ingredients i materials que utilitzarien, la quantitat que havien de posar, etc.<\/p>\n<p style=\"text-align: justify;\">Entre pas i pas, els professors explicaven alguna broma per amenitzar l\u2019ambient mentre els fot\u00f2grafs feien la seva feina immortalitzant l\u2019escena de tot el proc\u00e9s i els alumnes prenien nota a la seva llibreta.<\/p>\n<p style=\"text-align: justify;\">Nosaltres vam assistir a l\u2019experiment del grup del Marcel Set\u00f3; el seu treball consistia a crear un efecte \u00f2ptic basat en la densitat de cada un dels ingredients.<\/p>\n<p style=\"text-align: justify;\">Van comen\u00e7ar afegint aigua amb colorant vermell per distingir l\u2019aigua de l\u2019alcohol, amb colorant blau; a continuaci\u00f3, abocaren l\u2019oli al damunt i aquest va quedar sobre l\u2019aigua gr\u00e0cies a la seva densitat, tot seguit, afegiren sab\u00f3 i, quan va acabar de baixar del tot, preguntaren als alumnes de 2n si sabien per qu\u00e8, despr\u00e9s, per acabar, abocaren finalment mel i l\u2019alcohol.<\/p>\n<p style=\"text-align: justify;\">L\u2019efecte \u00f2ptic que queda a l\u2018acabar de posar-hi tots els ingredients, i d&#8217;esperar que la ci\u00e8ncia faci la seva feina, \u00e9s el d\u2019un arc de Sant Mart\u00ed.<\/p>\n<p>Nura Pedrerol i Ivan Regn\u00e9 4t ESO B<\/p>\n<p 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