volcanic pumice stone

Sparkle Formations: Crystal Butterflies

Hape: Science Can: Northern Ireland Gemstone Dig Kit -4pc, Ages 6+

National Geographic Crystal Garden RT Box Science Kit: Educational Chemistry Set for Grades 2-11, Activity Guide Included

Yellow Door Sensory Play Stones: Bugs - 12 Pieces

Apostrophe Games Roman Colosseum Building Block Set – 1756pcs

4M: Green Science - Weather Science - DIY Mini Observatory Kit, Kid 5+

Learning Resources Erupting Cross-Section Volcano Model - Science Projects, Ages 6+

PICASSO-TILES 600PCS Construction Toy Straw Building Set, STEM Learning Interlocking Builder Kit, Creative Early Education Toy for Kids Boys & Girls

Tricofun® Sage Owl Soft Building Kit

Dan&Darci Glow in the Dark Dino Eggs - 12 Eggs with Mini Dinosaur Models and Learning Cards -Stocking Stuffer for Kids, Birthday Gifts, Craft Kit

Geomag™ Magnetic Blocks Gems Set, 8 Pieces

Dissect-It Mini Butterfly Chrysalis STEM Science Dissection Kit Ages 5+

Cosmic Dig Kit by Big Discoveries - Planet Gem Fossil Excavation STEM Science Toy (Mercury)

MindWare Dig It Up! Dragon Eggs - Science and Nature

Cosmic Dig Kit by Big Discoveries - Planet Gem Fossil Excavation STEM Science Toy (Mars)

Smithsonian Amber Dig Value Kit

Cosmic Dig Kit by Big Discoveries - Planet Gem Fossil Excavation STEM Science Toy (Jupiter)

Apostrophe Games Empire State Building Block Set - 1559pcs

PICASSO-TILES Magnetic Tiles for Kids, Building Bricks, STEM Educational Toy

Miniland Mindfulness Mandala Stone and Crystal Beads

Cosmic Dig Kit by Big Discoveries - Planet Gem Fossil Excavation STEM Science Toy (Earth)