Heating by the Sun
Lesson 7 / 8
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I can explain why the heating effect of the Sun is greater at midday than at sunrise.
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Heating a surface from directly overhead is more effective than heating a surface at a different angle.
When rays of light hit a surface face-on, they are less spread out than if they hit at an angle.
At a place on Earth, the heating effect of the Sun is greatest at midday and lowest at sunrise and sunset.
Over a day, Earth's spin changes the Sun's height in the sky and the angle at which the Sun's rays arrive at a place.
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