{"id":8476,"date":"2023-10-06T18:42:00","date_gmt":"2023-10-06T17:42:00","guid":{"rendered":"https:\/\/exos.education\/fr\/exercice-sciences-matiere-melanges-solutions-difficile-5eme\/"},"modified":"2023-08-21T14:54:39","modified_gmt":"2023-08-21T13:54:39","slug":"exercice-sciences-matiere-melanges-solutions-difficile-5eme","status":"publish","type":"post","link":"https:\/\/exos.education\/fr\/exercice-sciences-matiere-melanges-solutions-difficile-5eme\/","title":{"rendered":"Exercice Sciences Mati\u00e8re M\u00e9langes Solutions Difficile 5\u00e8me."},"content":{"rendered":"<p>Objectif du cours :<br \/>&#8211; Reconna\u00eetre et comprendre le concept de m\u00e9langes et solutions.<br \/>&#8211; Distinguer entre m\u00e9lange homog\u00e8ne et h\u00e9t\u00e9rog\u00e8ne. <br \/>&#8211; Identifier les principales m\u00e9thodes pour s\u00e9parer les composants d&rsquo;un m\u00e9lange.<\/p>\n<p>**Exercice :**<\/p>\n<p>On vous donne quatre verres contenant diff\u00e9rentes substances :<\/p>\n<p>1. Le verre A contient un m\u00e9lange de sel et d&rsquo;eau.<br \/>2. Le verre B contient un m\u00e9lange d&rsquo;huile, de vinaigre et de poivre.<br \/>3. Le verre C contient un m\u00e9lange d&rsquo;eau, de sable et de sirop.<br \/>4. Le verre D contient une solution sucr\u00e9e.<\/p>\n<p>Questions :<br \/><img decoding=\"async\" draggable=false\" role=\"img\" class=\"emoji\" alt=\"1\ufe0f\u20e3\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/31-20e3.svg\"> Pour chaque situationindiquez si le contenu du r\u00e9cipient est un m\u00e9lange homog\u00e8ne ou h\u00e9t\u00e9rog\u00e8ne.<br \/><img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"2\ufe0f\u20e3\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/32-20e3.svg\"> Si possibleproposez une m\u00e9thode simple pour s\u00e9parer les diff\u00e9rentes substances dans chaque r\u00e9cipient (si possible).<br \/><img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"3\ufe0f\u20e3\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/33-20e3.svg\"> Identifiez dans quel(s) cas on pourrait utiliser la distillation ?<\/p>\n<p>Rappelez-vous qu&rsquo;il n&rsquo;y a pas toujours des r\u00e9ponses \u00ab justes \u00bb ou \u00ab fausses \u00bb. Ce qui est important icic&rsquo;est votre processus de r\u00e9flexionvotre approche du probl\u00e8me <img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\" \" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/1f44d.svg\"> Faites \u00e7a avec s\u00e9rieux !<\/p>\n<p>Lorsque vous aurez termin\u00e9 l&rsquo;exercice\u00e9changez vos copies avec un camarade afin que chacun puisse noter le travail effectu\u00e9 par l&rsquo;autre selon la grille d\u2019\u00e9valuation fournie par le professeur.<\/p>\n<p><img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\" \" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/1f440.svg\"> Voici \u00e0 pr\u00e9sent les corrections :<\/p>\n<p><img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\" \" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/1f539.svg\">R\u00e9ponse question <img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"1\ufe0f\u20e3\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/31-20e3.svg\"> <\/p>\n<p>Le Verre A: M\u00e9lange Homog\u00e8ne <br \/>Le Verre B: M\u00e9lange H\u00e9t\u00e9rog\u00e8ne<br \/>Le Verre C: M\u00e9lange H\u00e9t\u00e9rog\u00e8nes<br \/>Verres Verres D: Mixture Homogeneous<\/p>\n<p><img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\" \" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/1f539.svg\">R\u00e9ponse question <img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"2\ufe0f\u20e3\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/32-20e3.svg\"> <\/p>\n<p>Pour s\u00e9parer:<br \/>Verres A : \u00c9vaporation<br \/>Verres B : Utiliser une passoire puis la d\u00e9cantation<br \/>Verres C : Filtration puis \u00e9vaporation<br \/>Verres D : Impossible car c&rsquo;est une solution<\/p>\n<p><img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\" \" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/1f539.svg\">R\u00e9ponce question <img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"3\ufe0f\u20e3\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/14.0.0\/svg\/33-20e3.svg\"> <\/p>\n<p>La distillation peut \u00eatre utilis\u00e9e uniquement pour le Verre D car c&rsquo;est une solution sucr\u00e9e !<\/p>\n<p>Cet exercice permet aux \u00e9l\u00e8ves d&rsquo;appliquer concr\u00e8tement leurs connaissances sur les m\u00e9langes et solutions tout en promouvant l&rsquo;apprentissage par la coop\u00e9ration gr\u00e2ce \u00e0 l&rsquo;\u00e9valuation par pairs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Objectif du cours :&#8211; Reconna\u00eetre et comprendre le concept de m\u00e9langes et solutions.&#8211; Distinguer entre m\u00e9lange homog\u00e8ne et h\u00e9t\u00e9rog\u00e8ne. &#8211; Identifier les principales m\u00e9thodes pour s\u00e9parer les composants d&rsquo;un m\u00e9lange. **Exercice :** On vous donne quatre verres contenant diff\u00e9rentes substances : 1. Le verre A contient un m\u00e9lange de sel et d&rsquo;eau.2. Le verre B [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[8,19,5,4,318,1],"tags":[],"class_list":["post-8476","post","type-post","status-publish","format-standard","hentry","category-sciences","category-5eme","category-niveaux","category-matieres","category-pas-dadaptation-particuliere","category-exercices-pedagogiques-imprimables-et-gratuits"],"_links":{"self":[{"href":"https:\/\/exos.education\/fr\/wp-json\/wp\/v2\/posts\/8476","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exos.education\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exos.education\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exos.education\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/exos.education\/fr\/wp-json\/wp\/v2\/comments?post=8476"}],"version-history":[{"count":0,"href":"https:\/\/exos.education\/fr\/wp-json\/wp\/v2\/posts\/8476\/revisions"}],"wp:attachment":[{"href":"https:\/\/exos.education\/fr\/wp-json\/wp\/v2\/media?parent=8476"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exos.education\/fr\/wp-json\/wp\/v2\/categories?post=8476"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exos.education\/fr\/wp-json\/wp\/v2\/tags?post=8476"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}