100,000 WHYs: The Big Book of Science Questions for Kids
Does your child have a million questions? Instead of searching for answers online, give them a world of discovery at their fingertips. 100,000 WHYs is more than just a book - it’s a launchpad for your child’s imagination and a fundamental tool for scientific thinking.
From the mysteries of deep space to the wonders of the human body, this book transforms complex concepts into "Aha!" moments through vibrant illustrations and kid-friendly explanations.
💯 100s of fascinating facts across space, nature, the human body, technology & earth science
💯 3,000+ vibrant double-page illustrations that make learning visual and exciting
💯 Builds a scientist's mindset, teaches kids not just what to think, but how to think
💯Perfect for curious kids aged 6-12, confident readers and beginners alike
💯 Screen-free for hours - colorful enough to compete with any tablet
💯 Makes an unforgettable gift - birthdays, holidays
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Alice K.
My 5-year-old is in the 'Why' phase, and I was running out of answers! This book has been a lifesaver. We read two 'Whys' every night before bed. The illustrations are bright and keep him engaged while I explain how things work. Definitely a must-have for every 'Wonder Daddy' out there.
Aris M.
I bought this for my 4-year-old daughter. I was worried the science might be too complex, but it’s written perfectly for this age group. She loves the funny characters on the pages. It makes learning feel like a cartoon adventure.
Robert H.
I got this for my grandson's 6th birthday. It’s the first book he reaches for when he comes over. It’s great to see a book that encourages kids to ask big questions about the world instead of just staring at a screen.
100,000 WHYs: The Big Book of Science Questions for Kids
Raising A Child Who Knows More, Thinks More And Goes Further
Children are naturally curious — but most books don't keep up with them. If your child starts reading one page of this encyclopedia a day in primary school, by the time they reach junior high you will see just how far ahead they are.
As parents, we want our kids to:
🧠Develop curiosity and a hunger for knowledge
📚 Build reading and logical thinking skills
🌍 Broaden their horizons across every subject
100,000 Whys answers the questions kids are already wondering about — through stunning visuals and comics they genuinely love
What Will Your Child Learn inside this Book?
Hundreds of topics to explore across science, nature, space and more
Kids are natural scientists - they just need the right tools to explore. This encyclopedia hands them a universe of answers in one beautifully designed book, covering six major subject areas:
• Space & Astronomy - planets, stars, rockets, and mysteries of the universe
• Nature & Animals - wildlife, habitats, and how creatures survive
• Ocean Life - deep-sea creatures and underwater worlds
• Human Body - how our bodies work, grow, and stay healthy
• Technology - inventions, machines, and how things are built
• Earth Science - weather, geology, and natural wonders
Every topic is explained at a level kids actually understand - no dry textbook language, just clear, fun, kid-friendly writing paired with stunning full-color illustrations that bring every concept to life.
Whether your child is already obsessed with dinosaurs and space, or you're looking to spark that first flicker of curiosity - this book meets them exactly where they are.
Why parents love this book? It's more than just a book - It's a knowledge foundation
Develops a Scientist’s Mindset: Teaches kids aged 6 to 12 not just what to think, but how to think - fostering logic, observation, and critical reasoning.
Massive Variety: Packed with hundreds of fascinating facts across Space, Nature, Technology, Earth Science, and the Human Body.
Screen-Free Adventure: Over 100+ pages of high-quality, colorful illustrations that keep young minds engaged for hours without a tablet.
Builds Confidence: Empower your child with knowledge they can share at school and with friends, building their self-esteem as "the little expert."
Customer Reviews
Real experiences from real customers who love our products and service.
Smart treasure for curious kids
Sent this to my grandson in London and he calls me every day to tell me a new fact he learned.
Best buy this year
My son is a visual learner and the diagrams in here are perfect. It turned a rainy afternoon into a science expedition.
A great treasure
The quality of the paper and the binding is top-notch. It feels like a 'heritage' book that we'll keep for years.
Beautiful tool
Really lovely book. My daughter asks 'why' about everything and this has been a lifesaver. Only giving 4 stars because I wish it was even longer!
A premium book
Finally a book that explains things in a way kids actually understand without being condescending. I even learned a few things myself!
A educational resource
My 4-year-old is obsessed! We read a few 'whys' every night before bed and it has actually made bedtime easier because he's so excited to learn something new.
Très Bien!
A wonderful resource for curious children. It simplifies big concepts without losing the magic. My daughter now asks to read 'The Big Why Book' every single afternoon.
Sturdy & High Quality
I was worried about my 4-year-old ripping the pages, but the binding is very impressive. It feels like a 'forever' book that we will pass down to his younger brother.
Homeschool Essential
We use this as a daily 'discovery' prompt for our morning basket. It sparks so many great conversations that last all day. It’s basically a curriculum in a single book.
Great for Visual Learner
The illustrations are the real star here. Even my 2-year-old, who can't read yet, stays focused on the characters. It’s a bit heavy, but that just shows the quality of the paper.
Bedtime Learning
We replaced one of our standard storybooks with this, and the engagement is 10x higher. My daughter asks to 'learn something new' every single night. Best purchase this year.
Outstanding Quality
I've been shopping with this brand for over a year now and the quality never disappoints. Every purchase has exceeded my expectations and their customer service is exceptional.
Spot on Curation
First time ordering from WonderDaddy and I’m impressed. The book arrived in perfect condition. It's exactly the kind of book I want in my son's library
Educational and Fun
I’m happy with this book. However, we don’t use it like an Encyclopedia. Each chapter is a subject. For example, chapter one is a bunch of different facts and lessons about the body. Each page is a lesson, one page covered why we dream. I read one page a night to my son. So he learns something.
The Best Gift Idea
Bought this for a friend’s son and ended up buying a second copy for my own home. It’s the perfect 'coffee table book' for kids. High quality and educational
Perfect for Toddlers
I was worried the science might be too complex, but it’s written perfectly for this age group. She loves the funny characters. It makes learning feel like an adventure
The book my kids actually fight over
I never thought I'd see the day my kids would argue over a book! They both want to read it at the same time. The colorful illustrations grab their attention, and the fun facts keep them coming back. It's replaced screen time in our house, which is a huge win!
Worth It!
The quality of the book is amazing—very sturdy for little hands. The explanations are clear and simple. The only thing is I wish it had even more pages because my son finished it so fast! We are ready for volume two
Stem Starter
As an engineer, I wanted a book that would spark an interest in science early on. This book does exactly that. It explains things like germs and cheese-making in a way that actually sticks. My son now tells everyone how a toaster works.
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We're so confident in the quality of our product that we offer a satisfaction guarantee. If you're not completely satisfied with your purchase, simply return the item within 30 days for a full refund.
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Money-Back Guarantee
We're so confident in the quality of our product that we offer a satisfaction guarantee. If you're not completely satisfied with your purchase, simply return the item within 30 days for a full refund.
ADD TO CART
100% Satisfaction
Fast Shipping
Easy Returns
Frequently Asked Questions
Find answers to common questions about our products and more.
Is the content accurate and scientifically sound?
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Yes - all topics are written to be age-appropriate, accurate, and aligned with broadly accepted scientific understanding. Topics include well-established science across biology, physics, earth science, astronomy, and technology.
How is this different from just googling answers?
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Google gives one answer. This book gives context, connections, and the bigger picture - in a format a child can hold, explore, and return to. No ads, no rabbit holes, no screen time.
Will this book help with my child's schoolwork?
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Yes! The scientific thinking and problem-solving skills developed through this book directly support classroom learning. Many topics align with elementary science curricula, and the critical thinking approach helps children perform better across all subjects. Teachers often notice improved curiosity and participation from students who read books like this at home.
Will my child outgrow this book quickly?
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Not at all! The book is designed with multiple layers of complexity. Younger children (6-8) will grasp the basic concepts and enjoy the illustrations, while older children (9-12) will understand the deeper explanations and make more sophisticated connections. Many families report their children returning to it year after year, discovering new insights each time.
Can younger siblings (under 6) also benefit from this book?
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While the book is designed for ages 6-15, younger children can absolutely enjoy this book with a parent reading alongside them - the illustrations are engaging at any age. The written content is best understood from around age 6 onward.
Is this book a hardcover book?
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100,000 Whys book is a premium softcover (paperback) with a reinforced spine and a high-durability coating.
We chose this specific format because:
- Adventure-Ready: It’s lightweight enough for primary school kids to carry from the playroom to the car or backyard without being bulky.
- Easy Handling: The flexible binding makes it much easier for little hands to keep the pages open while they’re exploring those scientific discoveries!
Is this book available in other languages?
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Currently, this edition is available in English. However, the visual nature of the book with its extensive illustrations makes it accessible for ESL families, and parents can use it as a tool to practice English vocabulary with their children.