Safety

The child zone has no third-party scripts, no free text, and no dark patterns. Household experiments are designed for the kitchen table.

Gravity Lesson 1 uses a book and paper, standing on the floor. Lesson 3 uses water over a sink, with nearby adult supervision. Hazards are declared in the lesson file; missing is not allowed, an empty list is.

Leaving the child zone will require a parent PIN once accounts exist. There is no upsell, streak, or comparison anywhere a child can see.