Build your own Intruder Alarm to keep out those pesky brothers & sisters!
And while you are at it, explore how a magnet sets off this cool build-your-own intruder alarm.
It's a great project for exploring how a magnetic switch works in an electric circuit.
Simple construction of the alarm box is required.
Box in french
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Build your own Intruder Alarm to keep out those pesky brothers & sisters!
And while you are at it, explore how a magnet sets off this cool build-your-own intruder alarm.
It's a great project for exploring how a magnetic switch works in an electric circuit.
Simple construction of the alarm box is required.
Requires 2 AAA 1.5V batteries not included.
| Age | from 8 years old |
|---|---|
| Language | French |
