Kosmos Crystal - 317 items
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Thames & Kosmos Kids First Crystals, Rocks & Minerals Science Experiment Kit, Intro to Geology, Mineralogy & Crystal Growing for Early Learners
Thames & Kosmos Crystal Growing Science Kit Grow Over A Dozen Crystals with 15 Experiments, Includes Storage Case & 32 Page Color Laboratory Manual
Thames & Kosmos Ooze Labs Colorful Crystal Lab STEM Experiment Kit & Lab Setup | Awesome Geometric Crystals, Dazzling Displays, with 11 Shiny, Sparkly, Safe Experiments | Stickers to Decorate Your Lab
Thames & Kosmos Crystal Geode STEM Experiment Kit | Grow a Beautiful, Colorful Crystal Geode! | Explore Crystals, Rocks & Minerals| 3-Language Instruction Manual (English, French, Spanish)
Thames & Kosmos Crystal Growing: Glow-in-The-Dark Science Kit | 12 Experiments, Ages 10+ | Learn About Crystallization | Grow Crystals & Crystal Geodes The Glow in The Dark | 32-Page Manual
Thames & Kosmos Ooze Labs Hot Ice Crystals Fun, Simple Science Experiment | Instantly Forming Crystals! | Great Party Favor, Stocking Stuffer, Easter Basket Goodie | Safe, Fast, Educational Activity
Thames & Kosmos Crystal Growing STEM Experiment Kit | Grow Sparkling, Colorful Crystals of Different Sizes! | Learn About Crystallization| 3-Language Instruction Manual (English, French, Spanish)
