Make the 2025 holiday season unforgettable with hands-on Advent activities that combine education and excitement. Our STEM-approved slime kits and puzzle calendars help children ages 5-12 develop critical thinking skills while counting down to Christmas. The 12 Days of Slime Experience features daily scientific experiments, while our puzzle Advent calendar challenges young minds with progressively complex brain teasers. Both options serve as unique holiday gifts that keep kids engaged through December. Currently on clearance with 50% off retail prices, these Advent solutions offer exceptional value for parents and educators seeking interactive alternatives to traditional chocolate calendars. Explore our collection of educational toys and craft kits designed to make every day of Advent a new discovery.