Kids can watch colorful crystals grow with this NatGeo kit, on sale for Prime Day

NatGeo Mega Crystal-Growing Kit

For the earth-loving child (or dirt-digger) in your life, this crystal-growing set might be just the thing to keep them learning and having fun. National Geographic’s Mega Crystal Growing Lab lets kids prepare and grow six vibrantly colored crystals in just three to four days. The kit includes a light-up display stand, so your child […]