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Experiment with chemical reactions, viscosity and how crystals form and grow as you mix up spa-worthy chemistry creations, including crystal soaps, bath fizzers and lip balms. You’ll even learn some fun facts about rocks and geodes! Customize your spa crystals with lavender and strawberry scents, and practice using the scientific method to create a relaxing night at home or with a friend!• Enhances skills in basic chemistry and geology• Hands-on science lab that is fun, safe and non-toxic • Includes all necessary supplies for and a full-color instruction manual