Coffret cristaux
Cet été, nous avons fait un coffret de cristaux (vendu chez Liddl). Les enfants ont beaucoup aimé, même s'ils n'ont pas réussi à cristalliser leurs petits objets.
Avec protections!
Des expériences de chimiste... pour fabriquer les cristaux.
Fabriquer des petits objets en platre.
Tremper les formes en platre dans la solution pour les critalliser.
Nous avons eu quelques petits cristaux :
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