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      <title>La masse volumique by Mme Nieto</title>
      <link>https://padlet.com/madamenieto/densite</link>
      <description>Cycle 4</description>
      <language>en-us</language>
      <pubDate>2017-11-27 16:12:10 UTC</pubDate>
      <lastBuildDate>2025-10-03 22:11:50 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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         <title>Définition</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210490730</link>
         <description><![CDATA[<div>La <strong>masse volumique </strong>est une grandeur physique caractérisant la masse d'un matériau par unité de volume.<br>Elle est égale à la masse d'un objet divisée par son volume.</div>]]></description>
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         <pubDate>2017-11-27 16:19:30 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210490730</guid>
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      <item>
         <title>ρ : symbole de la masse volumique</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210496859</link>
         <description><![CDATA[<div>Pour la symboliser, on utilise la lettre grecque <strong>ρ </strong>"Rhô" (le R grec).</div>]]></description>
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         <pubDate>2017-11-27 16:28:07 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210496859</guid>
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      <item>
         <title>Formule</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210499660</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-11-27 16:32:07 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210499660</guid>
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      <item>
         <title>Tableau de conversion</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210506998</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-11-27 16:41:21 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210506998</guid>
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      <item>
         <title>FIN DU PADLET</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210507900</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2017-11-27 16:42:44 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210507900</guid>
      </item>
      <item>
         <title>Bulle de Marie Curie</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210512316</link>
         <description><![CDATA[<div>A toi de reproduire l'expérience dans un 4ième tube à essais pour reproduire l'expérience de Julien</div>]]></description>
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         <pubDate>2017-11-27 16:49:23 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210512316</guid>
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      <item>
         <title></title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210513548</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-11-27 16:51:13 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210513548</guid>
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      <item>
         <title></title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210513852</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-11-27 16:51:43 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210513852</guid>
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      <item>
         <title>Activité 1 : Calculer une masse volumique</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210516435</link>
         <description><![CDATA[<div>1) Choisir un <strong>petit </strong>objet de votre choix de votre trousse (1 objet par élève).<br>2) Mesurer leurs masses respectives et notez les proprement.<br>3) Mesurer le volume de vos objets et notez les proprement.<br>4) Calculer la masse volumique de chacun des objets (pensez à l'unité!!).</div>]]></description>
         <enclosure url="" />
         <pubDate>2017-11-27 16:55:38 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210516435</guid>
      </item>
      <item>
         <title>Lecture d&#39;un volume</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210520060</link>
         <description><![CDATA[<div>L’œil doit viser la base du Ménisque</div>]]></description>
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         <pubDate>2017-11-27 17:01:44 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210520060</guid>
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      <item>
         <title>Activité 3 : Bulle de Marie Curie</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210522760</link>
         <description><![CDATA[<div>1) Dans 3 tubes à essais différents, effectuer les mélanges suivants :</div><ul><li>Tube 1 : eau + huile</li><li>Tube 2 : eau + alcool</li><li>Tube 3 : huile + alcool</li></ul><div><strong><em>2mL par liquide !</em></strong></div><div>2) Dessiner les 3 tubes à essais légendés tels que vous les observez.<br>3) Pour chacun des tubes, dire si le mélange est homogène ou hétérogène.<br>4) Déduire quels sont les liquides qui ne sont pas miscibles.<br>5) Pour les mélanges hétérogènes, comparer les masses volumiques des liquides deux à deux. ( ϱ <sub>eau</sub>, ϱ <sub>huile</sub> , ϱ <sub>alcool</sub>).<br>6) Conclure en ordonnant les 3 masses volumiques du plus petit au plus grand.<br>7) Chercher sur internet la valeur des 3 masses volumiques.<br><br></div>]]></description>
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         <pubDate>2017-11-27 17:05:52 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210522760</guid>
      </item>
      <item>
         <title>Défi : EUREKA</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210848153</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-11-28 12:41:13 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210848153</guid>
      </item>
      <item>
         <title>Activité 2 : Identification d&#39;un matériau</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210855429</link>
         <description><![CDATA[<div>Un cube de 3 cm d'arête a une masse de 212g.</div><ol><li>Calculer son volume.</li><li>Calculer la masse volumique du matériau qui le constitue ( en<strong> g/cm</strong><strong><sup>3</sup></strong>).</li><li>D'après le tableau, de quel métal est constitué ce cube ?</li></ol>]]></description>
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         <pubDate>2017-11-28 13:00:02 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210855429</guid>
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      <item>
         <title></title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210858229</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-11-28 13:07:26 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210858229</guid>
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      <item>
         <title>Activité 4 : Aller plus loin</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210860232</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-11-28 13:11:36 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210860232</guid>
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      <item>
         <title></title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/210861233</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-11-28 13:13:47 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/210861233</guid>
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      <item>
         <title>Vidéo de découverte</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/212194452</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://youtu.be/AsXyk9oorYI" />
         <pubDate>2017-12-01 10:05:13 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/212194452</guid>
      </item>
      <item>
         <title>Le kilogramme étalon</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/213641254</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-12-06 10:59:33 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/213641254</guid>
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         <title>Conversions</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/213641694</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-12-06 11:01:39 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/213641694</guid>
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      <item>
         <title>Les marées noires</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/213641944</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-12-06 11:02:52 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/213641944</guid>
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      <item>
         <title>Déterminer le volume d&#39;un solide qui coule</title>
         <author>madamenieto</author>
         <link>https://padlet.com/madamenieto/densite/wish/214006939</link>
         <description><![CDATA[]]></description>
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         <pubDate>2017-12-07 08:23:58 UTC</pubDate>
         <guid>https://padlet.com/madamenieto/densite/wish/214006939</guid>
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