- Starstruck (Step Into Reading)
- Static Electricity and Lightning
- Statistical Physics for Babies
- Stay Curious!
- Staying Afloat
- Staying Dry
- Staying Warm
- Stellar Heroes
- Stem
- STEM 3-D Printing: Adding and Subtracting Fractions
- STEM: The Remarkable Ringed Planets: Problem Solving with Variables
- Stems We Eat
- Step by Step
- Step into the Desert
- Step into the Forest
- Step into the Rainforest
- Stephen Biesty's Cross-Sections Castle
- Stephen Biesty's Incredible Body Cross-Sections
- Stephen Biesty's Incredible Cross-Sections
- Stephen Biesty's Incredible Cross-Sections of Everything
- Stephen Biesty's More Incredible Cross-sections
- Stikky Night Skies
- Stink 5 - Superhéroe del sistema solar
- Stinky Science
- Sto:lo, Riparian Forests and Black Bears
- Stolen Science
- Stone Soup
- Stories for Kids Who Want to Save the World
- Storms
- Stormy Dice: ¡Hablemos!
- Strandfunde
- Strange But True: Gross Anatomy
- Strange But True: Tiny Creatures
- Strawberry
- Stretch to the Sun
- Stripes of All Types
- Studying Snowflakes
- Stuff
- Subtraction Fun With Math Mazes
- Sulle tracce del DNA
- Summertime Fun
- Summertime Sleepers
- Sun! One in a Billion
- The Kindness Carousel
- Super Narwhal and Jelly Jolt
- Super Simple Science Experiments for Curious Kids
- Super Slime
- Super Summer
- Super-Heróis da Ciência
- Superpower Dogs
- Survival Squad: Night Riders
- Survival Squad: Out of Bounds
- Survival Squad: Search and Rescue
- Survival Squad: Whitewater
- Survival Stories
- Survival! Desert
- Survival! Jungle
- Susan Pyle and the New Madrid Earthquake
- Susikoira Roi
- Susikoira Roi ja 9 C
- Susikoira Roi ja ilmiantaja
- Susikoira Roi ja kahvilakeikka
- Susikoira Roi ja koulun kingi
- Susikoira Roi ja kultakello
- Susikoira Roi ja merikapteenin arvoitus
- Susikoira Roi ja muukalaiset
- Susikoira Roi ja ohittajat
- Susikoira Roi ja pelimies
- Susikoira Roi ja pimeän pesä
- Susikoira Roi ja pyromaani
- Susikoira Roi ja seikkailu saaristossa
- Susikoira Roi ja vaihto-oppilas
- Susikoira Roi kesäduunissa
- Susikoira Roi Lapissa
- Susikoira Roi vaarallisilla vesillä
- Susikoira Roin tunturiseikkailu
- Sydney & Simon: Full Steam Ahead!
- Sydney & Simon: Go Green!
- Sydney & Simon: To the Moon!
- Symbiosis: Who's Living with Me?
- Súper Chistes 8 - Los mejores chistes para troncharte con tus ¡AMIGOS!