NATIONAL GEOGRAPHIC JUMBO CRYSTAL GROWING KIT

This geology-themed activity kit comes with everything kids need to grow large, glow-in-the-dark crystals. Kids will pour hot water into the growing powder, add the glow in the dark seed rock, then watch as the crystal takes shape over the next few days. This geology-themed activity kit comes with everything kids need to grow large, glow-in-the-dark crystals. Kids will pour hot water into the growing powder, add the glow in the dark seed rock, then watch as the crystal takes shape over the next few days.

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