Find the fault safely

Choose one informative next test and keep uncertain causes open.
What it is about
Diagnose a simple battery-circuit fault and choose a safe next test.
Year 4 · 8–9 years · 30 challenges
Before you begin
- Lower KS2 enquiry, skeletons, light, materials and fair comparisons.
What the class will do
- Choose and explain · 30 challenges
Find the fault safely
Diagnose a simple battery-circuit fault and choose a safe next test.
Using it in class
Classmates propose and compare explanations before one representative answers. Every case supplies its own record. These are reasoning tasks, not a physical repair tutorial. Real apparatus remains teacher-approved battery equipment under adult supervision. Full bank 30–45 minutes.
Give everyone time to think and discuss before one pupil acts at the board. The class explains and confirms together; hints and explanations stay until you move on.
Use an up-to-date browser on a computer connected to a whiteboard or shared display. Touch, mouse and keyboard; optional audio and reduced motion. No pupil accounts or personal devices.
Choose from 5 challenges up to the full activity. Discussion determines the duration: you set the pace.
Teacher Pro access includes all 30 challenges, interactive materials, hints and explanations for this activity.
A complete loop
Conductors and insulators
Switches control flow