Explore the fascinating process of growing alum crystals in "Emily's Science Lab," where MIT engineer Emily Calandrelli dives into the science of crystal formation. This educational video guides viewers through creating a supersaturated solution of potassium aluminum sulfate, commonly known as alum, to produce beautiful crystals. Essential scientific concepts such as saturated solutions, crystal lattice structures, and chemical compounds are highlighted. Based on Emily's book, "Stay Curious and Keep Exploring," this experiment aligns with STEM education goals, offering practical insights into chemistry and materials science. Ideal for young explorers interested in hands-on science activities, this video connects to curriculum standards by illustrating chemical reactions and scientific investigation. Part of the "Emily's Science Lab" series.