Blue Marble

Blue Marble — National Geographic 2026 Science Advent Calendar for Kids Ages 8-12

Blue Marble — National Geographic 2026 Science Advent Calendar for Kids Ages 8-12

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The National Geographic 2026 science advent calendar for kids ages 8–12 turns the holiday countdown into 24 days of hands-on discovery. Developed by Blue Marble, it combines 13 science experiments with 11 gemstone and fossil specimens—a thoughtful, value-minded... View details

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The National Geographic 2026 science advent calendar for kids ages 8–12 turns the holiday countdown into 24 days of hands-on discovery. Developed by Blue Marble, it combines 13 science experiments with 11 gemstone and fossil specimens—a thoughtful, value-minded gift that brings learning and play together.

Key Features

  • 24 days of science activities and collectible discoveries
  • Designed for kids ages 8–12
  • 13 experiments, including secret messages, floating coins and a glowing test tube
  • Grow a colorful crystal tree through hands-on experimentation
  • 11 specimens, including carnelian, chevron amethyst and snowflake obsidian
  • Collection also includes a gastropod, geode and tiger’s eye
  • Included storage pouch keeps the new collection together
  • Final-day mini dig brick reveals a pyrite specimen

One thoughtfully packed gift combines 13 experiments and 11 collectible specimens for lasting play value.

Plan ahead for the 2026 holiday countdown.

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  • SKU LFY-FFAE4D83-01
  • Condition New
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Frequently asked questions

What age range is this science advent calendar designed for?

This calendar is designed for kids ages 8–12.

What is included in the 24-day countdown?

The calendar includes 13 science experiments and 11 gemstone and fossil specimens, plus a storage pouch for the collection.

What kinds of experiments can kids try?

Activities include hiding and revealing a secret message, making a test tube glow, floating coins and growing a colorful crystal tree.

Which gemstones and fossils are included?

The collection includes carnelian, chevron amethyst, snowflake obsidian, a gastropod, a geode and tiger’s eye, among other specimens.

What happens on the final day?

Kids unearth a pyrite, also known as fool’s gold, specimen from a mini dig brick.

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