Mon Prof Augmenté
Heat Trapped in Air
Open to everyone until Tuesday, September 29
To keep it, print it while it is open.
Some gases in the air soak up heat that rises from the ground and send it back down. This keeps the lower air warmer than it would be if all the heat escaped.
In the picture
- A gas-molecule cluster: it takes in heat rising from below.
- A rising red wavy arrow: heat travelling upward from the ground.
- A red wavy arrow angled downward: heat sent back toward the ground.
- A yellow straight arrow: sunlight passing through the air.
Examples
- A car left in the sun gets hotter inside than the air outside.
- A greenhouse stays warm on a sunny day because its glass holds in heat.
Key takeaways
- Gases such as carbon dioxide and water vapour absorb heat leaving the ground.
- The absorbed heat is sent back down, so the lower air warms.
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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