National Geographic Glow-In-The-Dark Crystal Growing Kit greatoutdoors nerve-racking

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large dial with LED indicators for adjusting airflow

sturdy design and materials

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National Geographic Glow-In-The-Dark Crystal Growing Kit greatoutdoors nerve-rackingMix the crystal growing powder into water, add your seed rock (fluorite), and watch your glow in the dark crystal grow before your eyes! This kit contains nearly everything needed for children to succeed just add boiling water and a glass container! The small magnifying glass allows you to see the crystal formation up close. Also includes a display stand and learning guide. Adult supervision required. Ages 8+