Mon Prof Augmenté
Sunlit Slope and Rising Air
Age 12 · Biology
Sunlight warms the rocky slope, and the air just above it becomes lighter. That rising air forms a column that lifts a paraglider while the glider itself keeps sinking through the air.
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In the picture
- Sunlit rocky slope: ground surface warmed by sunlight
- Wavy lines above the slope: warmed air beginning to rise
- Column of long upward arrows: rising air that carries the glider upward
- Paraglider with a short downward arrow: the glider sinks through the rising air even as it climbs
Examples
- A hot air balloon rises because the air inside it is warmer and lighter than the air outside.
- Smoke from a chimney curls upward on a still, cold morning as warm air lifts it.
Key takeaways
- Sunlit ground can warm the air above it, making that air rise.
- A glider can climb in rising air even while it is slowly sinking through that air.
Quiz: Sunlit Slope and Rising Air (Age 12)
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According to the card, what happens to the air just above a sunlit rocky slope?
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While the rising air carries a paraglider upward, what is the paraglider itself doing?
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What causes the column of rising air that lifts the paraglider?
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