perpetual motion

Smithsonian Newton's Cradle: Physics Learning Kit for 3rd Grade with Instruction Guide

Discovery #Mindblown 6" Plasma Globe Lamp

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

LEGO Technic Planet Earth and Moon in Orbit Space Toys Set 42179

Smithsonian New Plasma Ball

Goliath Don't Wake Daddy Board Game

Asmodee Wavelength Board Game: Creative Thinking Party Game, 2-12 Players, 30-45 Minutes Play

Tetris Arcade Classic Handheld Game : Electronic Game, Single Player, Sound Effects, Creative Thinking

Costway 5 in 1 Kids Activity Table Set w/ Chair Toddler Luggage Building Block Table

Folding Coffee Table, Collapsible Wooden Mini Desk, Multifunctional Mid Century Modern Rustic Coffee Tables for Small Spaces Study Bedroom Living Room

Guidecraft Deluxe Art Center - Natural: Kids Wooden Craft Desk with Shelves, Bins & Paper Roll | Playroom Toddler Table & Chair Set

Garvee Kids Table and Chairs Set, Height Adjustable Desk with 6 Seats, Non-Slip Legs,Children Multi-Activity Table(Gray)

Drawing Table, Kids Art Table Set With Chairs And Storage Racks, for Children's Crafting, Painting, for Nursery, Kindergarten

Kids Table and Chair Set, Toddler Art and Craft Activity Table with Paper Roll and Storage Space, Preschool Furniture for Bedroom, Nursery

Guidecraft Acadia Outdoor Art Table and Stool Set: Kids Acacia Wood Painting and Arts and Crafts Table with Mobile Storage Paper Roll and Paint Cups

Kids Desk Study Desk - Chair Set for Boys & Girls, Wooden Writing Table with Bookshelf, Bulletin Board, Cabinet & Drawer for Ages 3-8, White

Kids Desk and Chair Set, Wooden Study Table with Storage Shelf & Bulletin Board for Children 3-8

Racxily Adjustable Drawing Drafting Table Desk with 2 Drawers for Home Office and School with Stool

Martha Stewart Kids Outdoor Craft Table, 2 Benches & Umbrella Set: Acacia Wood Activity Desk w/ Storage, Kids Play Table & Bench for Backyard, Garden

AZ Import Liquid Motion Bubbler With One Wheel (Red)

Dexmalle Kids Wooden Tool Bench

Racxily Hand Crank Adjustable Drafting Table Drawing Desk with 2 Metal Drawers, WITH STOOL

Racxily Narrow Console Table, Industrial Farmhouse Foyer Table for Entrance & Living Room, Brown/Black

National Geographic Glow in the Dark Marble Run - 50pc: Educational Focus on Creative Thinking & Engineering, Grades 2-11

Discovery #Mindblown 2-In-1 Reversible Planetarium Space Projector

Thames & Kosmos Wow in the World Sea Creatures Aquarium: Educational Science Kit for 1st-2nd Grade with Magnifying Glass & Experiment Guide

Dig It Up! Mystery Gems Science Kit

Thames & Kosmos Ooze Labs Chemistry Set (2024 Box): Educational Science Kit with Chemicals & Tools for 1st Grade

National Geographic Science Magic Kit: Educational Toy for School Chemistry Experiments, Includes Activity Guide

Smithsonian Microscope: Science Kits for 3rd Grade with Astronomy Instruction Guide

Smithsonian 3-D LED Solar System: Science Kit, Instruction Guide, Astronomy Education for 3rd Grade

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

MindWare Dig It Up: Dinosaur Eggs

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

National Geographic Magnetic Putty: Educational Science Toy with Activity Guide for Creative Thinking

National Geographic Volcano Science Kit: Educational Chemistry & Physics Activity for Grades 2-11

Creativity for Kids Grow N' Glow Terrarium: Science Kit for Kids, Educational Toy, Includes Jar, Figures, Stickers, Rocks

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

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

Snap Circuits Skill Builder Explorer Science Kit: Educational Memory & Motor Skills for 2nd Grade Kids

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

National Geographic Microscope Explorer Series Kit: Science, Biology Activity Guide for 2nd Grade

Think Box Gemstone Dig

Crayola Glow Chemistry Lab Set: Science Kit for Kids, Experiments, Educational Focus, Ages 7+

Discovery #Mindblown Solar Robot Creation STEM Science Kit 190pc

KiwiCo Colorful Chemistry

National Geographic Glow-In-The-Dark Human Body: Science Kit & Activity Guide for Anatomy Learning