THE FREE BOOK COMPANION · AGES 8–12
Big questions.
Real discoveries.
They’ve read the “why.” Now let them try.
Three playful science missions to explore on screen and around the house.
Use it in your browser or add it to your home screen. No child account.

SMALL MISSIONS. BIG “OH!” MOMENTS.
Choose your first discovery.
One digital challenge. Two hands-on investigations.
Start wherever curiosity takes you.
01INTERACTIVE LAB · ABOUT 5 MIN
The Balance Challenge
Can the lighter side win? Change the distance and find the balance.
Try this mission ↗
02TRY IT AT HOME · ABOUT 10 MIN
Bounce Detective
Same ball. Same drop. A different landing. What changes?
Try this mission ↗
03LOOK & DISCOVER · ABOUT 5 MIN
The Straw Mystery
It looks bent. But is it? Test what your eyes are telling you.
Try this mission ↗
FROM THE BOOK TO YOUR WORLD
Keep the curiosity going.
A companion to 100,000 Whys for Curious Kids, made for the moment your child asks, “Can we try that?”
A short materials list, clear steps, and explanations for the grown-up.
Move, predict, compare, and explain. There’s room to change your mind.
Use the printable mission sheets at home. No printing? Read the same instructions here.
FOR PARENTS & GROWN-UPS
Your next “let’s try it”
starts here.
Get the three-mission starter kit and open the lab. Includes activity sheets, a discovery passport, and a grown-up answer guide.
A FEW GOOD QUESTIONS
Before you dive in.
Do we need the book?
The missions work on their own. Each one also points to a question in the book if you’d like to explore the idea further.
What materials do we need?
Balance Challenge needs only this browser. Bounce Detective uses a ball, two safe floor surfaces and a ruler. The Straw Mystery uses a clear plastic cup, water, a straw and a towel. A grown-up should help choose a safe space.
Is this a subscription?
The starter kit and three missions are free. Updates are optional; access to the kit does not depend on joining a mailing list.
Where is progress saved?
Only in this browser on this device. There is no child profile, name or email field. You can clear progress from the lab.