Experiment with growing your own crystals with the science supplies from this 4M toy. Crystal Growing Science Experiments Kit includes materials for 7 crystal experiments, detailed instructions, and specially designed display cases. Follow the directions adding all crystal growing mixtures and grow amazing crystals of blue, red, or white colors! With the Crystal Growing Science Experiments Kit crystals may grow up to 3 x 3 inches to surprise your family and even yourself! Discover the secrets of science behind fascinating crystal formation with this Educational Toys Planet's fun science kit.