Products tagged with proefjes


€11,99
out of stock
Make a variegated volcano erupt under water. Perform a magic trick with yeast and sugar. Make colors disappear and snakes dance. Make invisible ink or make it rain in the kitchen....
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Article code ED2949F62
€23,50
in stock
When you grab the two ends of the energy bar wrapped in silver foil, the lights start to glow in colour and a beep sounds. How can that be?
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