Mon Prof Augmenté
Heat in the Dark
Age 10 · Science
Warm things give off infrared light that our eyes cannot see. A special camera turns that warmth into bright shapes, so people and cars can be seen at night.
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Every lesson is open to everyone for 7 days after it is published. This one came out on September 24, 2026: its text stays readable here, and its picture opens with a subscription.
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Age 10: open this week
Browse Age 10
In the picture
- A person’s chest: a warm body glowing bright white.
- A car’s front hood: engine heat glowing bright white.
- A patch of ground: a cooler area that shows as dim grey.
Examples
- Firefighters use a heat camera to find someone through smoke.
- Wildlife watchers use a heat camera to spot animals at night.
Key takeaways
- Warm objects send out infrared radiation.
- A heat camera makes infrared radiation into a picture.
Quiz: Heat in the Dark (Age 10)
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What do warm objects give off?
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What does a heat camera do?
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Why can people and cars be seen at night with a heat camera?
The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.
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