Sea breeze and land breeze
By day on a beach, the wind comes from the sea. At night the wind changes direction.
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The idea
Land heats up faster than the sea. The land also cools faster. A breeze is a gentle wind.
Step 1 of 5
- A coast. Land on one side, sea on the other.
- By day the land is warmer than the sea. Warm air rises over the land.
- Cool air moves in from the sea. This is a sea breeze.
- At night the sea is warmer than the land. Warm air rises over the sea.
- Cool air moves out from the land. This is a land breeze.
Warm air rises. So cooler air flows in sideways to replace the rising air.
By day, cool air moves from sea to land: a sea breeze. At night it moves from land to sea: a land breeze.