National Geographic Purple Crystal Growing Powder

Grow an amazing purple crystal with this fabulous science kit from National Geographic. Grows in less than a week! Learn all about crystal formations and watch the crystals grow day by day.

This science kit includes:

- 1 x Bag of Purple Crystal-Growing Powder (3.35 oz / 95 g)
- 1 x Seed Rock
- Learning Guide with Instructions

Manufacturer's Recommended Age: 8