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    Sir Steel is the main player in my children's book 'The weird story of Sir Steel'. But from now he also shows parents and children how to pull of… Read More
    Sir Steel is the main player in my children's book 'The weird story of Sir Steel'. But from now he also shows parents and children how to pull off these little experiments in 'Kiind Magazine'. Read Less
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Proefje van de Professor: benodigdheden
Sir Steel's experiment: this is what you need
Proefje van de Professor: Hoe voer je 'm uit?
Sir Steel demonstrates an experiment for children