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         <title>Exercices chapitre 1</title>
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         <title>Chapitre 1  : Révisions</title>
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         <title>Exercice masse volumique</title>
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         <title>Exercices</title>
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         <title>Utilité des ions</title>
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         <title>Exercices atomes</title>
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         <title>Exercices ions</title>
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         <title>Chapitre 4 : acides, bases et métaux</title>
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         <title>Exercices réactions métaux</title>
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         <title>Exercices acides / bases</title>
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         <title>Activité : introduction action des acides</title>
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         <title>Chapitre 5 : Matière dans les étoiles</title>
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         <title>Exercices chapitre 5</title>
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         <pubDate>2022-01-15 23:32:26 UTC</pubDate>
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         <title>Activité : énergie cinétique</title>
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         <pubDate>2022-01-29 09:34:43 UTC</pubDate>
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         <title>Activité : crash test</title>
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         <pubDate>2022-01-29 09:34:57 UTC</pubDate>
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         <title>Activité : lampe shake</title>
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         <title>Exercices chapitre 1</title>
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         <title>Activité éolienne</title>
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         <pubDate>2022-02-26 13:30:12 UTC</pubDate>
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         <title>Chapitre 1 : L&#39;énergie et ses conversions</title>
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         <title>Puissance d&#39;une installation</title>
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         <pubDate>2022-03-07 08:40:17 UTC</pubDate>
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         <title>Mesure de l&#39;énergie électrique</title>
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         <pubDate>2022-03-07 08:40:54 UTC</pubDate>
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         <title>Activité sécurité</title>
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         <pubDate>2022-03-07 08:41:09 UTC</pubDate>
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         <title>Chapitre 2 : Puissance et énergie électrique</title>
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         <pubDate>2022-03-14 14:32:10 UTC</pubDate>
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         <title>Exercices n°9/11</title>
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         <pubDate>2022-04-30 08:02:20 UTC</pubDate>
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         <title>Exercices n°21/23</title>
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         <title>Chapitre 3 : la résistance</title>
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         <pubDate>2022-04-30 08:03:05 UTC</pubDate>
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         <title>Exercices : associations de résistors</title>
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         <pubDate>2022-04-30 08:03:34 UTC</pubDate>
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         <title>Fiche exercices chapitre3</title>
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         <title>Activité : utilisation de résistances</title>
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         <title>Chapitre 1 : Mouvements et vitesse</title>
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         <pubDate>2022-05-22 16:58:15 UTC</pubDate>
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         <title>Repère et trajectoire</title>
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         <pubDate>2022-05-22 16:58:49 UTC</pubDate>
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         <title>A l&#39;heure du concert</title>
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         <title>Chapitre 2 : Actions et forces</title>
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         <pubDate>2022-05-22 17:00:04 UTC</pubDate>
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         <title>Exemples actions</title>
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         <pubDate>2022-06-04 08:59:02 UTC</pubDate>
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         <title>Exercices forces</title>
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         <title>Chapitre 3 : Gravitation et poids</title>
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         <title>tableau 1 écriture atomes</title>
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         <pubDate>2022-10-05 15:46:50 UTC</pubDate>
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         <title>Tableau 2 écriture atomes</title>
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         <title>Activité pluies acides</title>
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