Heat in the Dark
Open to everyone until Thursday, October 1
To keep it, print it while it is open.
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.
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.
Carry on in the app
Three questions on this lesson, to check the idea stuck. Free in the app while the lesson is in the free week.
At least one new illustrated lesson every weekday for your child’s year, with its quiz and a reminder at 6:15 pm.
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