Let’s think through this step by step.
We’re looking at how wind blows between land and sea during the day and at night. This happens because land and water heat up and cool down at different speeds.
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During the DAY:
- The sun shines on both land and sea.
- Land heats up faster than water → so land becomes warmer.
- Warm air over land rises (because warm air is lighter).
- Cooler air from over the sea moves in to replace it → that’s the “Cool Sea Breeze” blowing toward land.
- So, during the day:
sea breeze = wind from sea to land.
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During the NIGHT:
- There’s no sun. Both land and sea start cooling down.
- But land cools down faster than water → so now land is cooler, and sea is warmer.
- Warm air over the sea rises.
- Cooler air from land moves out to replace it → that’s the “Cool Land Breeze” blowing toward sea.
- So, at night:
land breeze = wind from land to sea.
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This whole process is called a “convection current” — warm air rises, cool air sinks and flows in to take its place. It’s like a circle of moving air!
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Final Answer:
During the day, wind blows from sea to land (sea breeze). At night, wind blows from land to sea (land breeze), because land and sea heat and cool at different rates.
Parent Tip: Review the logic above to help your child master the concept of land and sea breezes worksheet.
