- Wait, Rest, Pause
- Wait, Rest, Pause (Enhanced Edition)
- Waiting for Ice
- Waiting for the Night
- Walking in Gagudju Country: Exploring the Monsoon Forest
- Walking Sticks and Other Amazing Camouflage
- Walking the World in Wonder
- Wanted! Criminals of the Animal Kingdom
- Warning: Wild Weather Ahead
- WARP: Mestarin kosto
- Warum leben Meerschweinchen nicht im Meer?
- Warum Schiffe schwimmen und Löffel nicht
- Was Kinder wissen wollen – Wo beginnt der Regenbogen?
- Was Kinder wissen wollen – Woher kommen Sommersprossen?
- Washington D.C. From A-Z
- Wasser. Geschichten zum Planschen, Staunen und Forschen
- Watch It Grow: Writing, Simplifying, and Evaluating Expressions
- Watch Me Do Yoga
- Watch Over Our Water
- Watch Over Our Water (Enhanced Edition)
- Watching Stars
- Watching the Weather
- Water All Around
- Water Can Be . . .
- Water Cycle
- Water is Everywhere!
- Water Is Water
- Water Land
- Water Parks
- Water Scientists
- Water Works
- Water World
- Waterfalls
- Waterfowl for Kids
- Waves
- We Forgot
- We Forgot (Readaloud)
- We Gather Together
- We Go Way Back
- We Have Earthquakes
- We Have Hurricanes
- We Have Tornadoes
- We Like the Summer
- We Like the Summer (Enhanced Edition)
- We Planted Seeds Today
- We Travel So Far
- We Use Tools All Day
- We're All Wonders
- Weather Affects Me
- Weather Affects Me
- Weather and Climate through Infographics
- Weather and Climate!
- Weather Clues in the Sky
- Weather For Kids
- Weather Patterns
- Weather Scientists
- Weather Words and What They Mean (New Edition)
- Weeds Find a Way
- Wegener l'uomo che muoveva i continenti
- Weird and Amazing Places in the Natural World
- Weird Facts about the Human Body
- Weirdo
- Welcome Home: Where Nature's Most Creative Creatures Dwell
- Welcome to Arizona (Welcome To)
- Welcome to California (Welcome To)
- Welcome to Colorado (Welcome To)
- Welcome to Florida (Welcome To)
- Welcome to Maine (Welcome To)
- Welcome to Texas (Welcome To)
- Welcome to the World, Zooborns!
- Well, Will You Look at That? Ears
- Well, Will You Look at That? Eyes
- Well, Will You Look at That? Locomotion
- Well, Will You Look at That? Mouth & Teeth
- Well, Will You Look at That? Noses
- Well, Will You Look at That? Tails
- Wendy, Where Does Our Wastewater Go?
- Werewolves
- West Coast Wild ABC
- West Coast Wild at Low Tide
- Wetlands
- Whale in a Fishbowl
- Whales
- Whales: A Kids Fun Facts Book
- Whales: Giants of the Deep
- What a Seed Might Read
- What Am I? Where Am I?
- What Blossoms in Spring?
- What Can Live in a Desert?
- What Can Live in a Desert? (Enhanced Edition)
- What Can Live in a Forest?
- What Can Live in a Forest? (Enhanced Edition)
- What Can Live in a Grassland?
- What Can Live in a Grassland? (Enhanced Edition)
- What Can Live in a Lake?
- What Can Live in a Lake? (Enhanced Edition)
- What Can Live in the Mountains?
- What Can Live in the Mountains? (Enhanced Edition)
- What Can Live in the Ocean?
- What Can Live in the Ocean? (Enhanced Edition)
- What Do Animals Do All Day?
- What Do Animals Do in Spring?
- What Do Animals Do in Summer?
- What Do Animals Do in Winter?
- What Do I See When I Stop To Look?
- What Do Insects Eat?
- What Do People Do in Spring?
- What Do People Do in Summer?
- What Do People Do in Winter?
- What Do Pliers Do?
- What Do Pliers Do? (Enhanced Edition)
- What Do Scientists Do All Day?
- What Do They Do with All That Poo?
- What Do You Find in a Coral Reef?
- What Do You Find in a Pond?
- What Do You Find in a Tide Pool?
- What Does a Hammer Do?
- What Does a Hammer Do? (Enhanced Edition)
- What Does a Level Do?
- What Does a Level Do? (Enhanced Edition)
- What Does a Saw Do?
- What Does a Saw Do? (Enhanced Edition)
- What Does a Screwdriver Do?
- What Does a Screwdriver Do? (Enhanced Edition)
- What Does a Wrench Do?
- What Does a Wrench Do? (Enhanced Edition)
- What Does Green Mean?
- What Does It Mean to Be Green?
- What Does One Reef Matter?
- What Does One Reef Matter? A 15-Minute Book, Educational Version
- What Does Spider Poop Look Like?
- What Does Sunlight Do?
- What Does Sunlight Do? (Enhanced Edition)
- What does the camel say?
- What Does the Moon Taste Like?
- What Eats That?
- What Eats What
- What Eats What (Enhanced Edition)
- What Floats? What Sinks?
- What Floats? What Sinks? (Enhanced Edition)
- What Happens to Plants in Summer?
- What Happens to Plants in Winter?
- What Holds Us to Earth?
- What Holds Us to Earth? (Enhanced Edition)
- What if Night?