Mon Prof Augmenté
Warm Air Rises, Cold Air Sinks
Age 8 · Science
Air gets lighter when it is warm and heavier when it is cold. Warm air floats up, cold air slides down, and that is what makes wind and breezes.
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Age 8: open this week
Browse Age 8
In the picture
- A candle flame: it warms the air around it
- A balloon above the flame: the warmed air lifts it up
- A balloon above the ice: the chilled air lets it hang low
Examples
- A hot-air balloon carrying people up into the sky
- Cold air spilling out of an open freezer onto your feet
Key takeaways
- Warm air is lighter than cold air, so it rises.
- Cold air is heavier, so it sinks and pushes the warmer air out of the way.
Quiz: Warm Air Rises, Cold Air Sinks (Age 8)
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What does warm air do?
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What does cold air do?
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What do moving warm and cold air make?
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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