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		<rdfs:label>Géode maison</rdfs:label>
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		<property:Avertissement rdf:datatype="http://www.w3.org/2001/XMLSchema#string">1. Une solution pas assez saturée peut empêcher la formation de cristaux.  

3. La contamination par des impuretés peut perturber le processus. 

4. Les mouvements du récipient peuvent empêcher la formation régulière des cristaux.</property:Avertissement>
		<property:Complete rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Published</property:Complete>
		<property:Description rdf:datatype="http://www.w3.org/2001/XMLSchema#string">L'expérience de création de géodes de cristaux avec de la poudre d'alun permet d'observer le processus de cristallisation. Elle illustre des concepts scientifiques tels que la solubilité, l'évaporation et la formation de structures cristallines. En plus d'être éducative, cette expérience est aussi amusante et visuellement intéressante, car elle permet de créer de belles formations cristallines à la maison.</property:Description>
		<property:Difficulty rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Technical</property:Difficulty>
		<property:Disciplines_scientifiques rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Chemistry</property:Disciplines_scientifiques>
		<property:Disciplines_scientifiques rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Matter Sciences</property:Disciplines_scientifiques>
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		<property:Introduction rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Envie de sublimer vos coquillages ? Envie de décorer votre salon ? 


Cette expérience vous permettra de réaliser vos propres cristaux de décoration.</property:Introduction>
		<property:Item rdf:resource="&wiki;Eau"/>
		<property:Item rdf:resource="&wiki;Pot_en_verre"/>
		<property:Item rdf:resource="&wiki;Colorant"/>
		<property:Item rdf:resource="&wiki;Alun_de_potassium"/>
		<property:Item rdf:resource="&wiki;Colle_vinyle_transparente_Cléopâtre"/>
		<property:Licences rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Attribution (CC-BY)</property:Licences>
		<property:Main_Picture rdf:datatype="http://www.w3.org/2001/XMLSchema#string">G_ode_maison_035bed17760206a001124caf0e0e2253.jpg</property:Main_Picture>
		<property:Observations rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Dans une forme sphérique, les cristaux poussent tous en se dirigeant vers le centre: c’est une '''géode'''.</property:Observations>
		<property:Step_Content rdf:datatype="http://www.w3.org/2001/XMLSchema#string">* Casser l’œuf et bien laver
* Tant que l’œuf est mouillé, enlever délicatement la peau intérieure (attention, l’œuf devient très fragile)

* Bien nettoyer le coquillage et le secher</property:Step_Content>
		<property:Step_Content rdf:datatype="http://www.w3.org/2001/XMLSchema#string">* Appliquer la colle forte vinyle dans le coquillage/coquille d’œuf</property:Step_Content>
		<property:Step_Content rdf:datatype="http://www.w3.org/2001/XMLSchema#string">* Saupoudrer de poudre d’alun</property:Step_Content>
		<property:Step_Content rdf:datatype="http://www.w3.org/2001/XMLSchema#string">* Verser de l’eau bouillante dans un pot en verre 

* Diluer environ un pot de yaourt de poudre d'alun dans l'eau bouillante
* Ajouter de la poudre jusqu’à ce que vous ne pouviez plus la dissoudre</property:Step_Content>
		<property:Step_Content rdf:datatype="http://www.w3.org/2001/XMLSchema#string">* Laissez l'eau refroidir (1h)
* Ajouter le colorant dans l’eau refroidie</property:Step_Content>
		<property:Step_Content rdf:datatype="http://www.w3.org/2001/XMLSchema#string">* Ajouter la coquille enduite de poudre d’alun. Laisser reposer pendant 6 heures au moins 

'''NE PLUS TOUCHER NI BOUGER LE POT.'''</property:Step_Content>
		<property:Step_Content rdf:datatype="http://www.w3.org/2001/XMLSchema#string">* Sortir l’œuf délicatement &lt;u&gt;SANS&lt;/u&gt; toucher aux cristaux. Laisser sécher
* Quand c’est sec, c’est assez solide, vous pouvez donc toucher les cristaux</property:Step_Content>
		<property:Step_Title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Préparation coquille oeuf/coquillage</property:Step_Title>
		<property:Step_Title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">La colle</property:Step_Title>
		<property:Step_Title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">La poudre d'alun</property:Step_Title>
		<property:Step_Title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Dilution poudre d'alun - eau</property:Step_Title>
		<property:Step_Title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Ajout du colorant</property:Step_Title>
		<property:Step_Title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Ajout de la coquille</property:Step_Title>
		<property:Step_Title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Dernière étape</property:Step_Title>
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