Wind -sunrise and sunset micro-lesson
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Kids learn by watching short, engaging video lessons.
This is a lesson about wind and sunrise and sunset. Sometimes surfers get up at 5:00 AM to go for a dawnie or sunrise surf session. Why is that? Sometimes wind helps waves have more power or have a different shape but too much wind can mess up waves and make them very difficult to surf. On a normal day with no storms around, sunrise and sunset usually have no wind. Why is this? Daily wind is created by the unequal warming of the land. In this case, land, and ocean. Warm air rises and cool air sinks. As the sun comes up, it warms the land faster than it warms the air over the ocean. This causes high pressure over land and low pressure over the ocean. Because land heats up faster than the ocean, the hot air rises and allows the cool air to fill the space it left, and this is what wind is. Before the sun comes up, it is not heating up the land and usually has little to no wind. The same happens at sunset. The sun stops giving heat and does not change air pressure. Surfers like these times because no wind makes waves that look smooth as glass.
Kids earn more screen time by answering fun educational questions.
Here are some example of questions about this video that kids may be asked in the 1Question app to earn screen time.
What is there less of at sunrise and sunset?1) Wind2) Heat3) High pressure4) Ocean
Unequal warming on land on earth causes...?1) Wind2) Ocean currents3) Sunrise4) Sunset
Cold air fills the space that rising warm air leaves, what is this called?1) Wind2) Ocean currents3) Sunrise4) Sunset
Warm air does what when heated by the sun?1) Rises2) Sinks3) Stays the same4) Freezes
Why do surfers like to surf at sunrise and sunset?1) There is less wind2) There is more wind3) It fits in with their lifestlye4) The water is cooler
Midday the sun does not cool or heat the surface of the earth very much, what effect does this have on wind?1) There is less wind2) There is more wind3) No effect4) It changes direction
Too much wind can mess up waves?1) Yes2) No
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