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sensory exploration
By the end of the advent calendar
12 easy-fit connectors
4 rolls of Squishmallow tape and 5 mini erasers
and problem-solving skills
* Crystal Hedgehog stem sensory explorationCreate real crystals at home that will literally grow right in front of your eyes. They fully grow in 24 hours. A great STEM toy, learn basic science and chemistry while having fun, and end up with a great souvenir when you're done. Contains everything you need: crystal powder, gypsum base, growing container, stir stick, complete instructions, and the Hedgehog. Learn basic scientific concepts, science experiments; great after school activity. Perfect
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