Make science fun and entertaining with Crystal Grow Kit because your child can watch how the powder turns into a beautiful display of crystals by simply adding water. Kit includes Crystal Powder, Display Base: wooden stick and Grow Tray at a great value. Imagine the look on your child as they experience the wonder of science when they easily create their own crystals that can be displayed anywhere in the house!. Like a ant farm toy, Stem Stocking Stuffers. Stem Toys. Grow Crystals kit for kids.