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Leçon : Homme et pierres


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VOila quelques ressources en ligne pour préparer la leçon : "l'Utilisation des roches par l'homme"

Le CALCAIRE : sa formation, sont extraction, sont utilisation (pierre de taille)


Le GYPSE : sa formation, sont extraction, sont utilisation (la chaux, le plâtre)


La CRAIE : sa formation, sont extraction, sont utilisation (Blanc de Meudon)


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