Je fabrique du beurre
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19 Sep 2019
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48
Je change la couleur du jus de chou rouge
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19 Sep 2019
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99
Je gonfle un ballon sans souffler
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19 Sep 2019
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79
Je lave l’eau de Cologne
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19 Sep 2019
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40
De quelle couleur est mon feutre ?
![](https://www.chimieetsociete.org/components/com_remository_files/file_image_1003/th_1003_01.jpg)
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19 Sep 2019
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109
J’écris un message secret…
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19 Sep 2019
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54
Sucré ou pas sucré ?
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19 Sep 2019
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41