1. The Hidden Door
Lila pulled a dusty book and the whole shelf swung open.
Behind it glowed a laboratory that had been waiting for years.
Scientists always begin with a question, then test it carefully.
"My question," said Lila, "is what everything in here does."
2. The Safe Experiment
On the bench sat baking soda, vinegar and a very patient balloon.
Lila measured, mixed, and stepped back to watch.
The fizzing was carbon dioxide gas, made when an acid meets a base.
The balloon filled up all by itself, and Lila wrote down every step.
3. Build Something New
A locked door opened when Lila finished her notes: the invention room.
Gears, wires, motors and a small solar panel waited on the table.
Engineers design, test, and then improve — again and again.
By morning, Lila had built a lamp that ran on sunshine alone.