La transformation de la matière par les êtres vivants

6ème

La transformation de la matière par les êtres vivants

Chapitre 2 : la transformation de la matière par les êtres vivants Que devient toute la matière produite par les êtres vivants ? I – Quels sont les composants du sol ? Observation des différentes couches du sol à l’aide d’une tarière Bilan : le sol est constitué de couches superposées de haut en bas : – La litière est

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Prezi, la matière et les 6èmes

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