smithsonian crystal

National Geographic Giant Crystal Growing Lab

Joyfy Science Kits for Kids, 85+ STEM Educational Experiments Toys Featuring Erupting Volcano & Crystal Tree, Birthday Gifts for Boys Girls Age 6-12

Thames & Kosmos Mega Cyborg Hand STEM Experiment Kit: Science Project For Grades 3-8

National Geographic Gemstone Dig Kit: Educational Science & Geology Activity for Grades 1-9 with Instruction Guide

National Geographic Epic Science Series Earth Science Kit: Educational Kids Geology & Chemistry Activity Guide

Thames & Kosmos Plasma Ball

Think Box Inventor's Box: Science Kit for Kids, Toys for 8 Years Old, Includes Storage Case & Wires