This exciting and educational Christmas countdown calendar features 13 awesome science experiments and a collection of 11 rock specimens kids can add to their collection!

Each day of December as the holiday approaches, kids will open a fun experiment to conduct or a rock specimen from our world-class science kits. The fun and excitement culminate on the final day, as kids unearth a shimmering pyrite (fool's gold) specimen from the included mini dig brick.

This educational take on a classic holiday tradition includes the following science experiments: Magic Beaker, Glowing Test Tube, Beaker Surge, Disappearing Water Trick, Hide/Reveal a Secret Message, Dissect a Brain, Critter Molding Lab, Rainbow in a Test Tube, The Incredible Water Ball/The Magic Spoon (hydrophobic sand), Atomic Fizz, Pop Crystal "Fireworks", Floating Coins, and Grow a Colorful Crystal Tree.

Kids love hands-on science, and these experiments are no exception! Everything is included for each experiment, making it easy to dive right in each time they open a new one as Christmas approaches.

This advent calendar also includes a complete rock collection: Rose Quartz, Tiger's Eye, Carnelian, Chevron Amethyst, Snowflake Obsidian, Dalmatian Jasper, Hematite, Geode, Unakite, and Pyrite (Fool's Gold) in a Mini Dig Brick.

Rock collecting is a fascinating and popular hobby kids love, and the National Geographic 2026 Science Advent Calendar is a great introduction for boys and girls with an interest in geology. They'll love collecting and learning about these premium specimens from around the world, and can keep them safe in the included storage pouch.

Add a fun, scientific twist to the holidays this year with the National Geographic 2026 Science Advent Calendar!

We make the highest quality hands-on science toys, and all products are backed by exceptional service. With a mission to inspire people to care about the planet, the National Geographic Society is one of the world’s largest nonprofit scientific and educational organizations.