dark matter

Smithsonian New Plasma Ball

Smithsonian Amber Dig Value Kit

Thames & Kosmos Wind Power 4.0 Science Kit: Educational Toy for Grades 3-8, Includes Game Pieces

Smithsonian Mars Dig Value Kit

National Geographic Bug Habitat

National Geographic Super Slime & Putty

Dark Reading Matter - (Thursday Next Novel) by Jasper Fforde (Hardcover)

Dissect It Salamander Lab

Dark Matter and the Dinosaurs - by Lisa Randall (Paperback)

National Geographic Explorer Science Series - Science Magic Kit

Thames & Kosmos Robotic Solar Flower

Learning Resources Primary Science Shining Stars Projector: Preschool Science Kits with Figures

Mens You Matter Unless You Multiply Yourself By The Speed Of Light Squared Then You Energy Tee - Crazy Dog Men's T Shirt for Nerds

MHP Dark Matter®, Post-Workout Muscle Growth Accelerator, Fruit Punch, 3.44 lbs (1,560 g)

Klever Kits 2-in-1 Handheld Microscope for Kids - 1000X HD Digital Microscope with LED Screen, Slides & 32GB Card, Educational STEM Toy for Ages 5-12

Kids First: Science Kit

National Geographic 12 Days of Magic: Science Kits with Activity Guide for Creative Thinking

4M: Glow Planets & Nova Stars - 20 Glow-in-Dark Stick-Ons, Wall & Ceiling Decor

Thames & Kosmos Ooze Labs Colorful Crystal Lab: Educational Science Kit with Tools for Experiments

National Geographic Junior Microscope Science Kit - Up to 250x Magnification, 6 Prepared & 6 Blank Slides, Tweezers, Pipette, Lab Guide & More

Dig It Up! Discoveries: Cats

Hexbug 406-5517 Jungen Spielzeug

Motors & Generators

MindWare Crystal Creations Hedgehogs: Warm Colors - Science and Nature - 2 Pieces