Questions parents and teachers ask

The things families, teachers, and librarians ask us most.

Ask us something else

Safety and privacy

What parents, teachers and librarians ask first.

Low voltage only

Coin cells, AA packs and USB: 3 to 5 volts. Never wall power.

3–5 V DC
Built for real hands

Real components kids can hold and test, sized for small hands and short sessions.

Real parts
No student data

Our forms are for adults. We never ask for student names or details.

Adults only
Free to try

Every activity on this site is free, with materials you can find at home or school.

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