100,000
WHYS
for Curious Kids

A full-color visual encyclopedia for ages 6 to 12. Every big question gets a labeled diagram, a real answer and three myths busted.

100 Big Questions · 100 Quick Whys · 300 Myths Busted
Book page: How do fireflies light up? Book page: Why can astronauts jump so high on the Moon?
A full question page from the book: Why do zebras have stripes?
Inside the book

Every question gets a whole page

Kids look at the picture first, so the picture carries the answer. Grown-ups get a clear explanation they can read out loud.

A labeled diagram

Arrows and labels show what is happening, like flies failing to brake near a zebra’s stripes.

The Answer

A short, true explanation in plain words, with real numbers kids can picture.

How It Works

Three pictures, step by step.

At a Glance and a Quick Fact

Three key points to remember and one surprise to share at dinner.

Common Myths

Three things many people believe, each with the truth next to it.

10 worlds to explore

10 big questions in each world, plus a page of 10 Quick Whys. Sources for every page are listed at the back.

1Space
2Planet Earth & Weather
3Oceans & Water
4Amazing Animals
5Bugs & Tiny Creatures
6Dinosaurs & Long Ago
7Your Body & Brain
8Plants & Food
9Science & Machines
10Computers, Robots & AI

Myth or fact?

Three cards from the free pack. Guess first, then tap.

Lightning never strikes the same place twice.
Zebras have black skin.
During brain freeze, your brain actually freezes.
Pack coverMyth or Fact cards page Why of the Week posterMore cards
Free printable pack

Myth or Fact? 36 science cards and 4 posters

  • 36 cut-out cards with the answer printed upside down
  • 4 “Why of the Week” posters for the fridge or classroom
  • A My Big Why worksheet for young scientists
Launching October 13, 2026

Join the launch team

Get a free advance digital copy a week before release, the Myth or Fact pack for your kids, and a peek behind the scenes of launch week. No strings attached.

About Daniel Why

Daniel Why is the pen name behind the 100,000 Whys series from Elwood Kids. The job is simple: take the questions kids ask every day, check the answers against trusted sources, and draw them so clearly that a seven-year-old can explain them back to you.

More from Elwood Kids: 100 Whys About Space and What Is AI? (ages 4 to 9).