Summary
The Fixies — tiny helpers who live inside our machines — reveal how a motion sensor notices movement and switches something on. A quick full episode (about 6 minutes) from the how-things-work cartoon, easy to drop into a science or STEM warm-up.
Viewer safety
All ages
Common Sense Media — not yet ratedIMDb Parents Guide — not yet rated
Our rating is a quick teacher-to-teacher guide — preview before showing.
Teaching resources
Discussion questions
Discussion
This episode shows how a motion sensor notices movement and switches something on.
- Where have you seen lights or doors that turn on by themselves?
- How does the sensor 'know' that you are there?
- Why are motion sensors useful?
Quick work-a-long
Vocabulary: motion, sensor, detect, movement, automatic.
Try it: List three places a motion sensor is helpful and say what each one turns on.