Everything You Need For An Extraordinary Crystal Growing Science Experiment. Youll be amazed at how your very own blue crystal grows in all directions. Check in on it every day for new growth. In about ten days, its fully grown and ready to display. The full color instructions are easy to follow with the help of a parent. Just add boiling water to the included beaker, pour in your crystal powder, add seeds and rock base, and watch as your crystal grows each day.