The 100,000 Why’s Encyclopedia for Kids
The 100,000 Why’s Encyclopedia for Kids
Thousands of simple answers to the questions kids ask every day
Turns screen time into real curiosity and hands-on learning
Made for curious kids ages 5–12
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Shipping & Delivery
Shipping & Delivery
Shipping usually takes 6–12 business days. Every order is fully insured, so if your package is lost or arrives damaged, we’ll take care of it and make it right.

Your child has endless questions. Now they finally have the answers.
“Why is the sky blue?”
“How do robots work?”
“What lives at the bottom of the ocean?”
The 100,000 Why’s Encyclopedia for Kids gives curious children clear, exciting answers to the questions they ask every day.
Packed with fascinating facts about animals, space, Earth, science, nature, and engineering, it helps turn everyday curiosity into real learning — without another screen in front of them.
It’s the kind of book kids actually want to open, explore, and come back to again and again.
Keep their curiosity alive and give it somewhere to grow.
Kids who constantly ask “why” are not being difficult. They are trying to understand the world.
This encyclopedia gives that curiosity a place to go.
With simple explanations, fun discoveries, and easy-to-read answers, The 100,000 Why’s Encyclopedia helps children learn independently, build confidence, and discover new topics they never knew they loved.
Perfect for bedtime reading, car rides, quiet time, school support, or any child who never runs out of questions.
Customer Reviews
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Emily R.Verified BuyerHe used to ask me ‘why’ every five minutes and I never had a good answer. Now we look it up together every night. It has become our little bedtime routine
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Jessica M.,Verified BuyerBought it as a gift and he didn’t put it down for two days. He kept running back to tell us random facts. Honestly, I wish we had something like this growing up.
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Allie Y.Verified BuyerMy son carries this everywhere to the table, in the car, and before bed. It’s the first book he has actually chosen over his tablet.
Questions? We've got answers.
What age is this for?
It is best suited for curious kids ages 5–12, but many parents enjoy reading through the facts with them too.
What topics does it cover?
It covers thousands of questions across science, animals, space, Earth, nature, engineering, and everyday discoveries.
Is it good for school?
Yes. It makes a great homework companion and helps children understand science and nature topics in a simple, kid-friendly way.
Is it easy for kids to read by themselves?
Yes. The explanations are clear, simple, and written in a way that keeps kids engaged without feeling like a boring textbook.
Is it easy for kids to read by themselves?
Yes. The explanations are clear, simple, and written in a way that keeps kids engaged without feeling like a boring textbook.
Try It Risk-Free for 30 Days
We believe curious kids will love this book.
But if your child doesn’t enjoy exploring it, or you feel it isn’t right for your family, simply contact us within 30 days and we’ll make it right.
Give them the answers to their endless “why’s” — completely risk-free.