Scientific Explorer Ultimate Crystal Growing Kit teaches you how to make awesome crystals in all kinds of shapes, sizes and colors. Family and friends will be amazed, but you will know the science behind the stones. With 13 activities, this is the most impressive crystal growing kit you will find. See spectacular results as you grow a shimmering crystal studded geode that glows in the dark, formations with long jagged spikes, crystals that bounce and jiggle and more. The crystal experiments in this kit make great projects for science fairs and are a perfect activity to learn about the beauty of what grows in our Earth. Recommended for children 12 years of age and older.