Make & Display: Assorted Colorful Crystals

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This crystal experiment kit is a great STEM activity lets kids grow their very own crystals in assorted colors overnight! Characteristics: This crystal kit includes everything you need to grow crystals: crystal powder (potassium alum), dye tablet, measuring cup and lid, and stir stick. NOTE: You will receive ONE crystal kit in one of FOUR possible colors: Blue, Green, Red, or Mystery. We cannot guarantee which color you will receive. Size: Makes a single crystal that is approximately 1 inch in diameter, or several smaller crystals. Age: 8 years and up Show more