National Geographic Crystal Grow Glow in the Dark

Grow your own glow-in-the-dark crystal at home with this hands-on crystal-growing kit. Designed for curious kids ages 8+, the kit lets young scientists set up a simple experiment and watch a crystal form that charges in light and glows when the lights go down. Clear, engaging packaging and easy-to-follow catalog listing make it a great pick for STEM-focused play, classroom demonstrations, or as a science-themed gift for elementary and middle-school learners.