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toverwater ; onderzoeken en ontwerpen van stiften/kleuren d.m.v. toevoeging van water Science Party, Mad Science, Science Experiments Kids, Science For Kids, Professor, Crazy Scientist, Kids Lab, Kindergarten, Water Projects
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Proef: Toverwater - Proeven basisonderwijs - Expedition Chemistry

Onderzoek of zwarte stiften echt zwart zijn.

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