Circuit Builder

Learning fit

Labels show who asserted each claim.

Hands-on simple-circuits lab for ages 8-12, the partner app to Magnet Lab. Build-a-Circuit is a workbench where kids close a loop with wires, bulbs, a buzzer, and a switch — correct loops light up with animated current flow, two series bulbs glow softer, and a loop with no load triggers a plain-words short-circuit warning; five challenge badges check off as performed. Circuit Detective offers 8 broken-circuit fault-finding scenes, and Conductor or Insulator? runs a predict-then-test bench over 7 materials (copper, steel, aluminum conduct; rubber, plastic, wood, paper block).

Subjects

• Science (Developer disclosed)
• Physics (Developer disclosed)

Skills

• simple circuits (Developer disclosed)
• complete loops (Developer disclosed)
• conductors and insulators (Developer disclosed)
• switches (Developer disclosed)

Standards

Not verified

Practical details

No adult setup

No accounts of any kind. Progress is session-only and resets when the page is reloaded.

Pricing notes: Free to use. No ads, no in-app purchases, no paid tiers.

Developer: Cogitare Labs

Browser or device

• Modern web browser (Chrome, Safari, Firefox, or Edge) on desktop, tablet, or phone. No installation or download required.

Accountability

Material changes

No material public changes recorded.